id stringlengths 40 40 | instruction stringlengths 68 308 | input stringlengths 17 33.4k | output stringlengths 100 30k |
|---|---|---|---|
a11f0b8a204296fe7db9eaec53441012222cb004 | Analyze and fix the following issue in the Linux kernel code: pds_core: yield the CPU while waiting for the adminq to drain | Problem Details:
pdsc_adminq_wait_and_dec_once_unused() busy-waits for adminq_refcnt to
drop to one:
while (!refcount_dec_if_one(&pdsc->adminq_refcnt))
cpu_relax();
The refcount is held by pdsc_adminq_post() for the duration of an
in-flight command, which can wait up to devcmd_timeout seconds
(PDS_CORE_DEVCMD_TIME... | ```diff
diff --git a/drivers/net/ethernet/amd/pds_core/core.c b/drivers/net/ethernet/amd/pds_core/core.c
index e39b2c9beb20..04ec2569c61c 100644
--- a/drivers/net/ethernet/amd/pds_core/core.c
+++ b/drivers/net/ethernet/amd/pds_core/core.c
@@ -539,6 +539,7 @@ static void pdsc_adminq_wait_and_dec_once_unused(struct pdsc ... |
0ad134881508c36b65c1a8864f8bec53adbd3327 | Analyze and fix the following issue in the Linux kernel code: pds_core: fix use-after-free on workqueue during remove | Problem Details:
In pdsc_remove(), the workqueue is destroyed before pdsc_teardown()
is called. This ordering allows two paths to queue work on the
destroyed workqueue:
1. If pdsc_teardown() -> pdsc_devcmd_reset() times out, the error
path in pdsc_devcmd_locked() queues health_work.
2. A NotifyQ event can trigger ... | ```diff
diff --git a/drivers/net/ethernet/amd/pds_core/core.c b/drivers/net/ethernet/amd/pds_core/core.c
index 1074a022a52f..e39b2c9beb20 100644
--- a/drivers/net/ethernet/amd/pds_core/core.c
+++ b/drivers/net/ethernet/amd/pds_core/core.c
@@ -110,7 +110,6 @@ static void pdsc_qcq_intr_free(struct pdsc *pdsc, struct pdsc... |
ab0eec0ff0a421737a37f510ceab5c6ea59cd05a | Analyze and fix the following issue in the Linux kernel code: pds_core: fix deadlock between reset thread and remove | Problem Details:
pci_reset_function() acquires device_lock before performing the reset.
pdsc_remove() is called by the PCI core with device_lock already held.
If pdsc_pci_reset_thread() is running when pdsc_remove() is called,
destroy_workqueue() will block waiting for the work to complete, while
the work is blocked wa... | ```diff
diff --git a/drivers/net/ethernet/amd/pds_core/core.c b/drivers/net/ethernet/amd/pds_core/core.c
index 38a2446571af..1074a022a52f 100644
--- a/drivers/net/ethernet/amd/pds_core/core.c
+++ b/drivers/net/ethernet/amd/pds_core/core.c
@@ -606,9 +606,10 @@ void pdsc_pci_reset_thread(struct work_struct *work)
struc... |
defd52c1eab2926d874fa95408187dac6f890ff1 | Analyze and fix the following issue in the Linux kernel code: mailmap: fix wrong canonical name for mgr@kernel.org | Problem Details:
After picking up some pending patches for the kernel to work on, I
realized my name in the mailmap file somehow got mixed up. When
switching to my kernel.org Address some time ago, I had never the
intention to use a scrambled variant of Polish and German used for my
first name to be found in this file.... | ```diff
diff --git a/.mailmap b/.mailmap
index bc28ffdc9a77..45b133c19eb5 100644
--- a/.mailmap
+++ b/.mailmap
@@ -598,8 +598,8 @@ Mayuresh Janorkar <mayur@ti.com>
Md Sadre Alam <quic_mdalam@quicinc.com> <mdalam@codeaurora.org>
Miaoqing Pan <quic_miaoqing@quicinc.com> <miaoqing@codeaurora.org>
Michael Buesch <m@bues... |
ff04b26794a16a8a879eb4fd2c02c2d6b03850e9 | Analyze and fix the following issue in the Linux kernel code: sctp: fix auth_chunk_list capacity check in sctp_auth_ep_add_chunkid | Problem Details:
sctp_auth_ep_add_chunkid() uses SCTP_NUM_CHUNK_TYPES (20) as the
capacity limit for ep->auth_chunk_list, allowing it to hold up to
20 chunk entries (param_hdr.length up to 24). However, the copy
destination asoc->c.auth_chunks in struct sctp_cookie is only
SCTP_AUTH_MAX_CHUNKS (16) entries (20 bytes). ... | ```diff
diff --git a/net/sctp/auth.c b/net/sctp/auth.c
index be9782760f50..c901d373af80 100644
--- a/net/sctp/auth.c
+++ b/net/sctp/auth.c
@@ -672,7 +672,7 @@ int sctp_auth_ep_add_chunkid(struct sctp_endpoint *ep, __u8 chunk_id)
/* Check if we can add this chunk to the array */
param_len = ntohs(p->param_hdr.length... |
ecaa37826340520664a4e5522f803ff48fc3f564 | Analyze and fix the following issue in the Linux kernel code: net: txgbe: fix FDIR filter leak on remove | Problem Details:
Perfect FDIR filters can be added while the interface is down and are
kept on the software list for later restore. unregister_netdev() only
calls ndo_stop when the device is up, so txgbe_fdir_filter_exit() in
txgbe_close() is skipped in that case and the filters are leaked on
driver remove. Free the fi... | ```diff
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
index 20c5a295c6c2..c277863baf67 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
@@ -945,6 +945,7 @@ static void txgbe_remove(struct p... |
9c805e592a29be9e4e61ff1bd567da04aa8fd6f9 | Analyze and fix the following issue in the Linux kernel code: rds: Fix inet6_addr_lst NULL dereference when IPv6 is disabled | Problem Details:
When booting with the 'ipv6.disable=1' parameter, inet6_addr_lst
is never initialized because inet6_init() exits before addrconf_init()
is called to initialize it. An attempt to bind an RDS socket to
an ipv6 address results in a crash in __ipv6_chk_addr_and_flags()
KASAN: null-ptr-deref in range [0x00... | ```diff
diff --git a/net/rds/ib.c b/net/rds/ib.c
index 39f87272e071..8f9cf491984f 100644
--- a/net/rds/ib.c
+++ b/net/rds/ib.c
@@ -429,6 +429,10 @@ static int rds_ib_laddr_check_cm(struct net *net, const struct in6_addr *addr,
sa = (struct sockaddr *)&sin;
} else {
#if IS_ENABLED(CONFIG_IPV6)
+ if (!ipv6_mod_ena... |
6a905a71fd43ce8b45f05044b11491337f232c9d | Analyze and fix the following issue in the Linux kernel code: net: txgbe: fix heap overflow when reading module EEPROM | Problem Details:
txgbe_read_eeprom_hostif() always copies round_up(length, 4) bytes
into the caller buffer, which ethtool allocates with exactly 'length'
bytes. A non-4-aligned length therefore causes an out-of-bounds write.
Copy only the remaining bytes on the final dword instead.
Signed-off-by: Chenguang Zhao <zhaoc... | ```diff
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_aml.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_aml.c
index affea1a364ef..26d0cfc58ee2 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_aml.c
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_aml.c
@@ -96,11 +96,13 @@ int txgbe_read_eeprom_hostif(struct w... |
350e592ff4e30e48ffb55e142d11a73e63f4869c | Analyze and fix the following issue in the Linux kernel code: tipc: serialize udp bearer replicast list updates | Problem Details:
tipc_udp_rcast_add() and cleanup_bearer() both update ub->rcast.list with
list_add_rcu() / list_del_rcu(), but nothing serializes them. The add runs
from the encap receive softirq (via tipc_udp_rcast_disc()) without
rtnl_lock(), so it can race the cleanup delete and corrupt the list:
list_del corrup... | ```diff
diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c
index 62ae7f5b5840..230645cc01c9 100644
--- a/net/tipc/udp_media.c
+++ b/net/tipc/udp_media.c
@@ -94,6 +94,8 @@ struct udp_replicast {
* @ifindex: local address scope
* @work: used to schedule deferred work on a bearer
* @rcast: associated udp_repli... |
1c50efa1faf3a1a96e100b07ec7a2f3164d90bee | Analyze and fix the following issue in the Linux kernel code: rtase: Workaround for TX hang caused by hardware packet parsing | Problem Details:
The hardware performs packet parsing before packet transmission.
Parsing incomplete IPv4, IPv6, TCP, or UDP headers may trigger a TX
hang because the hardware parser expects additional protocol header
data that is not present in the packet.
The hardware performs additional PTP parsing on UDP packets i... | ```diff
diff --git a/drivers/net/ethernet/realtek/rtase/rtase.h b/drivers/net/ethernet/realtek/rtase/rtase.h
index 9bd6872474c1..03b12d83f6e9 100644
--- a/drivers/net/ethernet/realtek/rtase/rtase.h
+++ b/drivers/net/ethernet/realtek/rtase/rtase.h
@@ -192,6 +192,12 @@ enum rtase_sw_flag_content {
RTASE_SWF_MSIX_ENABLE... |
b2ff91b752b0d85e8815e7f44fd85205c4268094 | Analyze and fix the following issue in the Linux kernel code: mptcp: only set DATA_FIN when a mapping is present | Problem Details:
mptcp_get_options() clears only the status group of struct
mptcp_options_received; data_seq, subflow_seq and data_len are filled in
by mptcp_parse_option() exclusively inside the DSS mapping block, which
runs only when the DSS M (mapping present) bit is set.
A peer can send a DSS option with the DATA_... | ```diff
diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index dff3fd5d3b55..1b74ca5b6a59 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -157,17 +157,11 @@ static void mptcp_parse_option(const struct sk_buff *skb,
ptr++;
flags = (*ptr++) & MPTCP_DSS_FLAG_MASK;
- mp_opt->data_fin = (flags &... |
447ec540233c60d6af4d68a164a5bc8ce7e975c1 | Analyze and fix the following issue in the Linux kernel code: geneve: ensure the skb is writable before fixing its headers | Problem Details:
Make sure the IPv4/6 and UDP headers are writable before fixing them up in
geneve_post_decap_hint. As skb_ensure_writable can reallocate the skb linear
area, reload the GRO hint header pointer and only set the IPv4/6 header ones
after the call.
Fixes: fd0dd796576e ("geneve: use GRO hint option in the ... | ```diff
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index bed1c9713e0a..bb275b30d3e5 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -586,6 +586,7 @@ static int geneve_post_decap_hint(const struct sock *sk, struct sk_buff *skb,
struct iphdr *iph;
struct udphdr *uh;
__be16 p;
+ int err... |
751bfa982b4a6de8275a552804f6971adcf08473 | Analyze and fix the following issue in the Linux kernel code: geneve: fix hint header definition wrt endianness | Problem Details:
Bitfields are packed differently depending on the endianness, take it into
account in the GRO hint header definition.
Fixes: e0a12cbf262b ("geneve: add GRO hint output path")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/patchset/20260529144713.780938-1-atenart%40kernel.o... | ```diff
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index 396e1a113cd4..bed1c9713e0a 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -43,8 +43,17 @@ MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
#define GENEVE_OPT_GRO_HINT_LEN 1
struct geneve_opt_gro_hint ... |
29ab31f3f27157648f2f7e6d5e1fd9792fdf0614 | Analyze and fix the following issue in the Linux kernel code: wifi: brcmfmac: set F2 blocksize to 256 for BCM43752 | Problem Details:
The BCM43752 is not reliable with the default 512-byte SDIO function 2
block size: on an i.MX8MP board with an AMPAK AP6275S module at
SDR104 / 200 MHz, an iperf TX stress test kills WLAN within seconds:
mmc_submit_one: CMD53 sg block write failed -84
brcmf_sdio_dpc: failed backplane access over S... | ```diff
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
index ec487c6f2e38..869c4872d399 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
@@ -911,6 +91... |
d50557779257a00162411e3048d82971ff1f644c | Analyze and fix the following issue in the Linux kernel code: net: Call net_enable_timestamp() before failure in sk_clone(). | Problem Details:
When sk_clone() fails, sk_destruct() is called for the new socket.
If the parent socket has SK_FLAGS_TIMESTAMP in sk->sk_flags,
net_disable_timestamp() is called for the child socket even though
net_enable_timestamp() is not called for it.
Let's call net_enable_timestamp() before any failure path in
... | ```diff
diff --git a/net/core/sock.c b/net/core/sock.c
index fc3ff0552d68..504d82a3aacd 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2546,6 +2546,9 @@ struct sock *sk_clone(const struct sock *sk, const gfp_t priority,
RCU_INIT_POINTER(newsk->sk_reuseport_cb, NULL);
+ if (sock_needs_netstamp(sk) && newsk... |
98da8ce87dd561f08fbe44f75865edc5d9b2ba5f | Analyze and fix the following issue in the Linux kernel code: soreuseport: Clear sk_reuseport_cb before failure in sk_clone(). | Problem Details:
When sk_clone() fails, sk_destruct() is called for the new socket.
If the parent socket has sk->sk_reuseport_cb, the child will call
reuseport_detach_sock() for the reuseport group.
Let's clear sk->sk_reuseport_cb before any failure path in sk_clone().
Note that this was not a problem before the cit... | ```diff
diff --git a/net/core/sock.c b/net/core/sock.c
index 8a59bfaa8096..fc3ff0552d68 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2544,6 +2544,8 @@ struct sock *sk_clone(const struct sock *sk, const gfp_t priority,
cgroup_sk_clone(&newsk->sk_cgrp_data);
+ RCU_INIT_POINTER(newsk->sk_reuseport_cb, NULL... |
4bf22afe53a1de4b44b04cf677fd5199089cbdff | Analyze and fix the following issue in the Linux kernel code: amd-xgbe: fix MAC_AUTO_SW handling in CL37 AN | Problem Details:
MAC_AUTO_SW (VR_MII_DIG_CTRL1 bit 9) enables automatic XPCS speed
mode switching after CL37 auto-negotiation and is only meaningful in
SGMII MAC mode. The original code unconditionally set this bit on
every call to xgbe_an37_set(), including when called from
xgbe_an37_disable() with enable=false. This ... | ```diff
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
index fa0df6181207..12770af031eb 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
@@ -267,9 +267,14 @@ static void xgbe_an37_set(struct xgbe_prv_data *pdata, b... |
a4f55260f7f7d4dc4d0ee55063dfb0c457b77991 | Analyze and fix the following issue in the Linux kernel code: drm/vmwgfx: Validate vmw_surface_metadata::array_size | Problem Details:
This field comes from userspace and should be validated against specific
limits depending on which Shader Model (SM) is available.
Fixes: 504901dbb0b5 ("drm/vmwgfx: Refactor surface_define to use vmw_surface_metadata")
Reported-by: Zero Day Initiative <zdi-disclosures@trendmicro.com>
Cc: stable@vger.k... | ```diff
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
index b2d3927b5567..bd0563741e89 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
@@ -78,7 +78,7 @@ static int vmw_gb_surface_unbind(struct vmw_resource *res,
static ... |
e751256486d0ded20f5a9f9863467f1dce65142f | Analyze and fix the following issue in the Linux kernel code: net: gro: fix double aggregation of flush-marked skbs | Problem Details:
Commit 0ab03f353d36 ("net-gro: Fix GRO flush when receiving a GSO
packet.") added a flush check to skb_gro_receive(), but
skb_gro_receive_list() lacks the same validation.
As a result, packets marked with NAPI_GRO_CB(skb)->flush may still be
re-aggregated.
This allows already-GRO'd packets with exist... | ```diff
diff --git a/net/core/gro.c b/net/core/gro.c
index 35f2f708f010..29b4d02bf519 100644
--- a/net/core/gro.c
+++ b/net/core/gro.c
@@ -229,7 +229,9 @@ done:
int skb_gro_receive_list(struct sk_buff *p, struct sk_buff *skb)
{
- if (unlikely(p->len + skb->len >= 65536))
+ /* make sure to check flush flag and to no... |
285f90a4d1141c7594f2368e19cbb307388eff30 | Analyze and fix the following issue in the Linux kernel code: arm64/mm: Check the requested PFN range during memory removal | Problem Details:
prevent_memory_remove_notifier() advances pfn while scanning the requested
range for early memory. When the loop completes, pfn is at or beyond
end_pfn. Passing it to can_unmap_without_split() therefore checks a range
after the one being offlined.
Consequently, a valid request can be rejected based on... | ```diff
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index a25d8beacc83..18a8b0d3714e 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -2194,7 +2194,7 @@ static int prevent_memory_remove_notifier(struct notifier_block *nb,
}
}
- if (!can_unmap_without_split(pfn, arg->nr_pages))
+ if (!can_... |
b877075d0baa22c225842c2f19e3ea0a9cbcbe39 | Analyze and fix the following issue in the Linux kernel code: arm64: Correct value returned by ESR_ELx_FSC_ADDRSZ_nL() | Problem Details:
Address size fault, level -1 is encoded as 0b101001 or 0x29 according to
the Arm ARM. Correct the value to match the spec. This also matches the
offset of "level -1 address size fault" in the fault_info array in
fault.c.
Fixes: fb8a3eba9c81 ("KVM: arm64: Only read HPFAR_EL2 when value is architectural... | ```diff
diff --git a/arch/arm64/include/asm/esr.h b/arch/arm64/include/asm/esr.h
index 81c17320a588..f816f5d77f1a 100644
--- a/arch/arm64/include/asm/esr.h
+++ b/arch/arm64/include/asm/esr.h
@@ -131,7 +131,7 @@
* Annoyingly, the negative levels for Address size faults aren't laid out
* contiguously (or in the desir... |
fafb66e5903c2bcfc7b7e259042a8282f18a6faa | Analyze and fix the following issue in the Linux kernel code: rtla/timerlat_top: Fix on-threshold actions firing on signal | Problem Details:
A bug was reported when rtla-timerlat-top tool performs on-threshold
actions, even though no threshold was hit. This is reproduced even if no
threshold is set at all:
$ rtla timerlat top -q -c 0 --on-threshold shell,command='echo BAD'
BAD
Timer Latency
...
The bug... | ```diff
diff --git a/tools/tracing/rtla/src/timerlat_top.c b/tools/tracing/rtla/src/timerlat_top.c
index 18e1071a2e24..6206a0a565ad 100644
--- a/tools/tracing/rtla/src/timerlat_top.c
+++ b/tools/tracing/rtla/src/timerlat_top.c
@@ -536,7 +536,7 @@ timerlat_top_bpf_main_loop(struct osnoise_tool *tool)
if (!params->qui... |
7be2552e601c247a328a5aba6fc06ac844b94a16 | Analyze and fix the following issue in the Linux kernel code: pds_core: reject component parameter in legacy firmware update | Problem Details:
The legacy firmware update path does not support per-component updates.
If a user specifies a component parameter with devlink flash, reject
the request with -EOPNOTSUPP rather than silently ignoring the component
parameter and flashing the entire firmware image.
Fixes: 49ce92fbee0b ("pds_core: add FW... | ```diff
diff --git a/drivers/net/ethernet/amd/pds_core/devlink.c b/drivers/net/ethernet/amd/pds_core/devlink.c
index 2ea97e1c5939..8adae7b18898 100644
--- a/drivers/net/ethernet/amd/pds_core/devlink.c
+++ b/drivers/net/ethernet/amd/pds_core/devlink.c
@@ -90,6 +90,12 @@ int pdsc_dl_flash_update(struct devlink *dl,
{
... |
0c9e6367639548307d3f578f6943ce72c9d39087 | Analyze and fix the following issue in the Linux kernel code: drm/vc4: Prevent shader BO mappings from becoming writable | Problem Details:
vc4_gem_object_mmap() rejects a writable mapping of a validated shader
BO, but leaves VM_MAYWRITE set. Userspace can map the BO read-only and
then turn it writable with mprotect().
Validated shader BOs must stay read-only: the validator checks the
instructions once and the GPU trusts them afterwards.... | ```diff
diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
index 2161761b1f22..5e7c46dd7823 100644
--- a/drivers/gpu/drm/vc4/vc4_bo.c
+++ b/drivers/gpu/drm/vc4/vc4_bo.c
@@ -732,9 +732,13 @@ static int vc4_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struct
{
struct vc4_bo *bo = to... |
b24adfed83ae3fe623d978a30d5c6c636a874821 | Analyze and fix the following issue in the Linux kernel code: wifi: cfg80211: guard optional PMSR nominal time | Problem Details:
pmsr_parse_ftm() rejects a request that omits NOMINAL_TIME only for
non-trigger-based PD ranging. It then reads the attribute
unconditionally for every non-trigger-based request:
out->ftm.nominal_time =
nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_NOMINAL_TIME]);
For the other non-trigger-based reques... | ```diff
diff --git a/net/wireless/pmsr.c b/net/wireless/pmsr.c
index 34c3625f7fd5..d1e2fae5bc0e 100644
--- a/net/wireless/pmsr.c
+++ b/net/wireless/pmsr.c
@@ -263,8 +263,9 @@ static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev,
"FTM: nominal time is required for PD NTB ranging");
return -E... |
43b25879f004c98defa2776bedc6ca4763c51945 | Analyze and fix the following issue in the Linux kernel code: wifi: brcmfmac: drain bus_reset work on device removal | Problem Details:
brcmf_fw_crashed() and the debugfs "reset" entry both schedule
drvr->bus_reset, whose callback recovers drvr through container_of()
and dereferences it. The removal path frees drvr (brcmf_free ->
wiphy_free) without draining the work, so a bus_reset callback pending
or running during removal can outli... | ```diff
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
index d24b80e492e0..ec487c6f2e38 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
@@ -1069,6 +1... |
538c51e9d124cf656f2dd0c0394a8545efc7102d | Analyze and fix the following issue in the Linux kernel code: wifi: brcmfmac: make release_scratchbuffers idempotent | Problem Details:
brcmf_pcie_release_scratchbuffers() frees the shared.scratch and
shared.ringupd DMA buffers with dma_free_coherent() but does not clear
the pointers afterwards, unlike the sibling release_ringbuffers() which
NULLs commonrings/flowrings/idxbuf on release.
Both the bus_reset .reset callback (brcmf_pcie_... | ```diff
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
index 13662aa4b4ea..9f10b3fff9ff 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
@@ -1383,16 +1383,20 ... |
a007a384c9eb17610f53a53e2f59944c31f1565a | Analyze and fix the following issue in the Linux kernel code: wifi: mac80211: recalculate TIM when a station enters power save | Problem Details:
When an AP buffers frames for a station on its per-station TXQs and the
station subsequently enters power save, sta_ps_start() records the
buffered TIDs in txq_buffered_tids but does not update the TIM. The
station's TIM bit is only ever set when a further frame is buffered
while the station is already... | ```diff
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index d9ea19be075d..5e26be8e27d8 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1717,6 +1717,8 @@ static void sta_ps_start(struct sta_info *sta)
else
clear_bit(tid, &sta->txq_buffered_tids);
}
+
+ sta_info_recalc_tim(sta);
}
static void... |
754f8efe45f87e3a9c6871b645b2f9d46d1b407b | Analyze and fix the following issue in the Linux kernel code: iommu/intel: Fix out-of-bounds memset in dmar_latency_disable() | Problem Details:
dmar_latency_disable() intends to zero out only the single
latency_statistic entry for the given type, but the memset size was
computed as sizeof(*lstat) * DMAR_LATENCY_NUM, which clears the entire
array starting from &lstat[type].
When type > 0, this writes beyond the end of the allocated array,
corr... | ```diff
diff --git a/drivers/iommu/intel/perf.c b/drivers/iommu/intel/perf.c
index 02168f2f20a4..bec98dcbb9ec 100644
--- a/drivers/iommu/intel/perf.c
+++ b/drivers/iommu/intel/perf.c
@@ -63,7 +63,7 @@ void dmar_latency_disable(struct intel_iommu *iommu, enum latency_type type)
return;
spin_lock_irqsave(&latency_... |
fb80117fddb5b477218dc99bb53911b72c3847f8 | Analyze and fix the following issue in the Linux kernel code: iommu/amd: Bound the early ACPI HID map | Problem Details:
The ivrs_acpihid command-line parser appends entries to a fixed
four-element early_acpihid_map array. Unlike the sibling IOAPIC and HPET
parsers, it does not reject a fifth entry before incrementing the map size.
Check the capacity at the common found label before parsing the HID and
UID or writing th... | ```diff
diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index e93bcb5eef70..e7d7b4cb9337 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -3864,6 +3864,12 @@ not_found:
return 1;
found:
+ if (early_acpihid_map_size == EARLY_MAP_SIZE) {
+ pr_err("Early ACPI HID map overflow ... |
c3d68e294cbb6a4090bb219d3dcaca85a011809b | Analyze and fix the following issue in the Linux kernel code: wifi: mwifiex: fix NULL dereference when the AP has HT-cap but no HT-oper | Problem Details:
mwifiex_tdls_add_ht_oper() gates its follow-the-AP-bandwidth path on
bss_desc->bcn_ht_cap being present, but then dereferences a different
pointer, bss_desc->bcn_ht_oper:
if (ISSUPP_CHANWIDTH40(priv->adapter->hw_dot_11n_dev_cap) &&
bss_desc->bcn_ht_cap &&
ISALLOWED_CHANWIDTH40(bss_desc->bcn... | ```diff
diff --git a/drivers/net/wireless/marvell/mwifiex/tdls.c b/drivers/net/wireless/marvell/mwifiex/tdls.c
index 845f2a22e071..c71ffe8399e4 100644
--- a/drivers/net/wireless/marvell/mwifiex/tdls.c
+++ b/drivers/net/wireless/marvell/mwifiex/tdls.c
@@ -215,7 +215,7 @@ mwifiex_tdls_add_ht_oper(struct mwifiex_private *... |
61a799ffd1e5a4fd3702d547828b7ff3d161468e | Analyze and fix the following issue in the Linux kernel code: wifi: at76c50x-usb: avoid length underflow in at76_guess_freq() | Problem Details:
at76_guess_freq() checks only that the received frame is at least a bare
802.11 header (24 bytes) before subtracting the fixed management-body
offset:
len -= el_off;
For both beacon and probe response frames, el_off is 36. If the frame is
shorter than el_off, subtracting it causes the calculated IE ... | ```diff
diff --git a/drivers/net/wireless/atmel/at76c50x-usb.c b/drivers/net/wireless/atmel/at76c50x-usb.c
index 32e3e09e7680..d9c2809be4ba 100644
--- a/drivers/net/wireless/atmel/at76c50x-usb.c
+++ b/drivers/net/wireless/atmel/at76c50x-usb.c
@@ -1521,13 +1521,16 @@ static inline int at76_guess_freq(struct at76_priv *p... |
780dfed688622ea01be3c9c2c55eec2207f05e04 | Analyze and fix the following issue in the Linux kernel code: iommu/vt-d: Disallow SVA if page walk is not coherent | Problem Details:
Hardware implementations report Scalable-Mode Page-walk Coherency Support
via the SMPWCS field in the extended capability register. If the hardware
does not support page-walk coherency, a clflush is required every time
the page table entries (which are walked by the IOMMU hardware) are
updated.
In the... | ```diff
diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c
index fea10acd4f02..726f7b6d0bff 100644
--- a/drivers/iommu/intel/svm.c
+++ b/drivers/iommu/intel/svm.c
@@ -27,7 +27,7 @@
void intel_svm_check(struct intel_iommu *iommu)
{
- if (!pasid_supported(iommu))
+ if (!pasid_supported(iommu) || !ecap... |
f0858bfc7d3cab411a447b88e3ef970e575032c9 | Analyze and fix the following issue in the Linux kernel code: wifi: mwifiex: bound uAP association event IEs to the event buffer | Problem Details:
mwifiex_process_uap_event() handles EVENT_UAP_STA_ASSOC by exposing the
(re)association request IEs that the firmware copies into the event:
sinfo->assoc_req_ies = &event->data[len];
len = (u8 *)sinfo->assoc_req_ies - (u8 *)&event->frame_control;
sinfo->assoc_req_ies_len = le16_to_cpu(event->len) -... | ```diff
diff --git a/drivers/net/wireless/marvell/mwifiex/uap_event.c b/drivers/net/wireless/marvell/mwifiex/uap_event.c
index 679fdae0f001..ba1bdbbff687 100644
--- a/drivers/net/wireless/marvell/mwifiex/uap_event.c
+++ b/drivers/net/wireless/marvell/mwifiex/uap_event.c
@@ -123,11 +123,31 @@ int mwifiex_process_uap_eve... |
0fe2d5be7ab59717adb3f9cfab3832c6c4dd770c | Analyze and fix the following issue in the Linux kernel code: wifi: mac80211: copy aggregation information | Problem Details:
This information can be considered part of the capabilities and should
also be copied to the NAN data station.
Fixes: 27e9b326b674 ("wifi: mac80211: support NAN stations")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: htt... | ```diff
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index b00191e02a63..43f142624d33 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2611,6 +2611,9 @@ static int sta_apply_parameters(struct ieee80211_local *local,
memcpy(&sta->deflink.pub->supp_rates,
&nmi_sta->deflink.pub->supp_rates... |
3c0d10f233f19153f81fef685b5c6716776a5af3 | Analyze and fix the following issue in the Linux kernel code: vhost-net: fix TX stall when vhost owns virtio-net header | Problem Details:
When vhost owns the virtio-net header, i.e. when
VHOST_NET_F_VIRTIO_NET_HDR is negotiated, sock_hlen is 0,
meaning that no header will be forwarded to the TAP device.
In the current vhost_net_build_xdp() implementation,
when sock_hlen == 0, the gso pointer can point at the start of the
Ethernet frame ... | ```diff
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 77b59f49bddb..3e72b9c6af0c 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -731,10 +731,12 @@ static int vhost_net_build_xdp(struct vhost_net_virtqueue *nvq,
goto err;
}
- gso = buf + pad - sock_hlen;
-
- if (!sock_hlen)
+ if (!so... |
4c4c97b60a5e978121d9ee8cb0ab3916e5d6a8de | Analyze and fix the following issue in the Linux kernel code: wifi: wilc1000: validate assoc response length before subtracting header | Problem Details:
wilc_parse_assoc_resp_info() computes the trailing IE length as
ies_len = buffer_len - sizeof(*res);
without first checking that buffer_len is at least sizeof(struct
wilc_assoc_resp) (6 bytes). buffer_len is the length reported for a
received association response (host_int_parse_assoc_resp_info() pa... | ```diff
diff --git a/drivers/net/wireless/microchip/wilc1000/hif.c b/drivers/net/wireless/microchip/wilc1000/hif.c
index 009c4770a6f9..60fe5f08964f 100644
--- a/drivers/net/wireless/microchip/wilc1000/hif.c
+++ b/drivers/net/wireless/microchip/wilc1000/hif.c
@@ -600,6 +600,11 @@ static s32 wilc_parse_assoc_resp_info(u8... |
121a96c5a0db8d18e2ba2cb89660cca8a40508fe | Analyze and fix the following issue in the Linux kernel code: wifi: mwifiex: fix freeze for 60 seconds caused by request_firmware | Problem Details:
Fix regression in rgpower table loading, caused by using
request_firmware(): when the requested firmware does not exist, e.g.
nxp/rgpower_WW.bin does not exist on OpenWRT builds for WRT3200ACM,
request_firmware() falls back to firmware_fallback_sysfs(), which expects
the firmware to be provided by user... | ```diff
diff --git a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
index a6550548d3b4..9460d5352b23 100644
--- a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
@@ -196,6 +196,7 @@ static int mwifiex_request_rg... |
3349ef6a366a61d631f6a263d12cea240957719d | Analyze and fix the following issue in the Linux kernel code: binfmt_elf_fdpic: only honour the first PT_INTERP | Problem Details:
The program header scan handles PT_INTERP from a switch nested in the
scan loop, so its break leaves the switch and not the loop. A binary
carrying more than one PT_INTERP runs the case again and overwrites both
interpreter_name and interpreter. The previous name allocation leaks and
so does the previo... | ```diff
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 7e3108489c83..fe0b5c5ed2bc 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -231,6 +231,10 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm)
for (i = 0; i < exec_params.hdr.e_phnum; i++, phdr++) {
switch (phdr->p... |
91957b89da995607cb654b1f9a3c126ddbaee10f | Analyze and fix the following issue in the Linux kernel code: wan: wanxl: Only reset hardware after BAR mapping | Problem Details:
wanxl_pci_init_one() stores the freshly allocated card in driver data
before the PLX BAR is mapped. Several early probe failures then unwind
through wanxl_pci_remove_one(), including failure to allocate the coherent
status area or to restore the DMA mask.
wanxl_pci_remove_one() unconditionally calls ... | ```diff
diff --git a/drivers/net/wan/wanxl.c b/drivers/net/wan/wanxl.c
index d4da88c77112..065c00c12cc1 100644
--- a/drivers/net/wan/wanxl.c
+++ b/drivers/net/wan/wanxl.c
@@ -514,7 +514,8 @@ static void wanxl_pci_remove_one(struct pci_dev *pdev)
if (card->irq)
free_irq(card->irq, card);
- wanxl_reset(card);
+ if... |
a61b4db34a753bdf5c9e77a7f3d3dddd41dcfacc | Analyze and fix the following issue in the Linux kernel code: nfp: Check resource mutex allocation | Problem Details:
nfp_cpp_resource_find() allocates a CPP mutex handle for the matching
resource-table entry and then reports success. nfp_resource_try_acquire()
immediately passes that handle to nfp_cpp_mutex_trylock().
However, nfp_cpp_mutex_alloc() returns NULL on failure. If that happens
for a matching table entr... | ```diff
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c
index 6d5833479d12..237300b82b91 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c
@@ -96,6 +96,... |
952c02b33f56207a160421bcd61e7ac53c9c59ae | Analyze and fix the following issue in the Linux kernel code: wifi: mac80211: tear down new links on vif update error path | Problem Details:
When ieee80211_vif_update_links() adds new links it allocates a link
container for each and calls ieee80211_link_init() (which registers the
per-link debugfs files with file->private_data pointing into the container)
and ieee80211_link_setup(). If the subsequent drv_change_vif_links() fails,
the error ... | ```diff
diff --git a/net/mac80211/link.c b/net/mac80211/link.c
index d0535268962c..dc68144dc363 100644
--- a/net/mac80211/link.c
+++ b/net/mac80211/link.c
@@ -399,6 +399,10 @@ static int ieee80211_vif_update_links(struct ieee80211_sub_if_data *sdata,
memcpy(sdata->link, old_data, sizeof(old_data));
memcpy(sdata->... |
16cc4f5c1c4b9e45eca7f7deefa5410a292db599 | Analyze and fix the following issue in the Linux kernel code: exec: fix unsigned loop counter wrap in transfer_args_to_stack() | Problem Details:
The stop value is derived from bprm->p >> PAGE_SHIFT. The index variable
is an unsigned long. If bprm->p drops below PAGE_SIZE and stop becomes
zero the loop condition index >= stop is always true.
After the index == 0 iteration the decrement wraps to ULONG_MAX and
bprm->page[ULONG_MAX] reads sizeof(v... | ```diff
diff --git a/fs/exec.c b/fs/exec.c
index d5993cedc829..c7b8f2d6366c 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -740,7 +740,7 @@ int transfer_args_to_stack(struct linux_binprm *bprm,
stop = bprm->p >> PAGE_SHIFT;
sp = *sp_location;
- for (index = MAX_ARG_PAGES - 1; index >= stop; index--) {
+ for (index = M... |
1e75a8255f11c81fb07e81e5029cfd75804350a0 | Analyze and fix the following issue in the Linux kernel code: iommu/amd: Wait for completion instead of returning early in iommu_completion_wait() | Problem Details:
need_sync is a per-IOMMU flag shared by all domains and devices behind
that IOMMU. It is set whenever a command is queued with sync == true and
cleared when a completion-wait (CWAIT) command is queued. However, a
cleared need_sync only means that a covering CWAIT has been queued, not
that all previousl... | ```diff
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 563f9c2672d5..29dc18d3d22e 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -1450,11 +1450,23 @@ static int iommu_completion_wait(struct amd_iommu *iommu)
int ret;
u64 data;
- if (!iommu->need_sync)
- return... |
e800decd9c0ac4349bcd8f8f9b29fd21fe93165e | Analyze and fix the following issue in the Linux kernel code: KVM: x86: Only reset TSC Deadline Timer in apic_timer_expired on KVM_RUN | Problem Details:
On Intel platforms with a VMX preemption timer and APICv, if a VMM
calls KVM_GET_LAPIC before KVM_GET_MSRS to save the vCPU state, it is
possible to lose a pending timer interrupt.
If the thread running these ioctls is migrated to another core after
calling KVM_GET_LAPIC but before KVM_GET_MSRS and th... | ```diff
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 38bba9a1114c..48b019114c19 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -2052,7 +2052,7 @@ static void apic_timer_expired(struct kvm_lapic *apic, bool from_timer_fn)
if (apic_lvtt_tscdeadline(apic) || ktimer->hv_timer_in_use)
... |
52f2f7c30126037975389aa04d24c506a5177c35 | Analyze and fix the following issue in the Linux kernel code: KVM: x86/mmu: Fix use-after-free on vendor module reload | Problem Details:
mmu_destroy_caches() destroys pte_list_desc_cache and
mmu_page_header_cache, but leaves both pointers unchanged. The pointers
live in kvm.ko, and therefore survive when a vendor module is unloaded
while kvm.ko remains loaded.
If creation of pte_list_desc_cache fails during a subsequent vendor
module ... | ```diff
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 7e80abba7313..22cf222d3033 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -7576,7 +7576,9 @@ void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm, u64 gen)
static void mmu_destroy_caches(void)
{
kmem_cache_destroy(pte_list... |
7a2c70e777a00c32ebafd376a6fe31ebb91c5b20 | Analyze and fix the following issue in the Linux kernel code: KVM: x86/mmu: Preserve nested TDP shadow page tables if they are used as roots | Problem Details:
kvm_mmu_zap_oldest_mmu_pages() excludes a shadow page whose root_count
is non-zero from top-level reclaim, because such a page cannot be
freed. The path in mmu_page_zap_pte() that recursively zaps a parentless
nested TDP child has no such check. As a result, a shadow page can
be zapped even if the page... | ```diff
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 41f92ed1ca37..7e80abba7313 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -2642,6 +2642,7 @@ static int mmu_page_zap_pte(struct kvm *kvm, struct kvm_mmu_page *sp,
*/
if (tdp_enabled && invalid_list &&
child-... |
2abd5287f08319fa35764566b15c6e22cb1068db | Analyze and fix the following issue in the Linux kernel code: KVM: x86: Check for invalid/obsolete root *after* making MMU pages available | Problem Details:
Check for a "stale" page fault, i.e. for an invalid and/or obsolete root,
after making MMU pages available for the shadow MMU. If reclaiming shadow
pages zaps an in-use root, i.e. marks it invalid, then KVM will attempt to
map memory into an invalid root. On its own, populating an invalid root is
"fi... | ```diff
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 234d0a95abf5..41f92ed1ca37 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -4852,16 +4852,17 @@ static int direct_page_fault(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault
if (r != RET_PF_CONTINUE)
return r;
- r =... |
622ebfac01ba4f9c0060cebd41257fe46fc4a0b3 | Analyze and fix the following issue in the Linux kernel code: KVM: nVMX: Hide shadow VMCS right after VMCLEAR | Problem Details:
free_nested() frees the shadow VMCS while vmcs01 still points to it. But
because it is asynchronous with respect to loaded_vmcs_clear(), the vCPU
might migrate before the pointer is cleared and __loaded_vmcs_clear()
may then execute VMCLEAR.
The VMCS needs to stay attached until its explicit VMCLEAR c... | ```diff
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 220d42ebc82e..ddf6df7bee93 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -336,6 +336,7 @@ static void nested_put_vmcs12_pages(struct kvm_vcpu *vcpu)
static void free_nested(struct kvm_vcpu *vcpu)
{
struct vc... |
6f884eb87a79e0c482baef2ad96c96b81d024235 | Analyze and fix the following issue in the Linux kernel code: net: airoha: Fix DMA direction for NPU mailbox buffer | Problem Details:
airoha_npu_send_msg() always maps the mailbox buffer with DMA_TO_DEVICE,
but some callers expect the NPU to write response data back into the
same buffer:
- airoha_npu_wlan_msg_get() (NPU_OP_GET): NPU writes response into
the buffer, then the caller reads it via memcpy()
- airoha_npu_ppe_stats_setup... | ```diff
diff --git a/drivers/net/ethernet/airoha/airoha_npu.c b/drivers/net/ethernet/airoha/airoha_npu.c
index 870d61fdd9c6..b679bed952de 100644
--- a/drivers/net/ethernet/airoha/airoha_npu.c
+++ b/drivers/net/ethernet/airoha/airoha_npu.c
@@ -168,7 +168,7 @@ static int airoha_npu_send_msg(struct airoha_npu *npu, int fu... |
b4b201cc93ff70150853aba03e14d314d1980ca0 | Analyze and fix the following issue in the Linux kernel code: dpaa2-eth: put MAC endpoint device on disconnect | Problem Details:
fsl_mc_get_endpoint() returns the MAC endpoint device with a reference
taken through device_find_child(). The Ethernet connect path stores that
device in mac->mc_dev and keeps it for the lifetime of the connected MAC
object.
However, the disconnect path only disconnects and closes the MAC before
freei... | ```diff
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
index 9335703768a9..764d2a09668f 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -4732,6 +4732,7 @@ static void dpaa2_eth_disco... |
8a570b19b4b16a8a3b5ffa2b332bd5613110b2d8 | Analyze and fix the following issue in the Linux kernel code: KVM: arm64: vgic: Avoid double-deactivate of IRQs in the nested context | Problem Details:
In the nested state, the physical interrupt has already been
deactivated through the HW bit in the LR. The extra deactivation
would be harmless but can hit an errata case on AmpereOne, so
avoid it here.
On AmpereOne, deactivating a physical interrupt through
ICC_DIR_EL1 or ICC_EOIR1_EL1 (depending on ... | ```diff
diff --git a/Documentation/arch/arm64/silicon-errata.rst b/Documentation/arch/arm64/silicon-errata.rst
index 014aa1c215a1..88b4aa45a206 100644
--- a/Documentation/arch/arm64/silicon-errata.rst
+++ b/Documentation/arch/arm64/silicon-errata.rst
@@ -55,10 +55,14 @@ stable kernels.
+----------------+--------------... |
2484568a335cd7bda951c75b3a7d95ea36161ae7 | Analyze and fix the following issue in the Linux kernel code: net: airoha: Fix potential use-after-free in airoha_ppe_deinit() | Problem Details:
airoha_ppe_deinit() replaces the NPU pointer with NULL via
rcu_replace_pointer() but does not wait for existing RCU readers
to exit before calling ppe_deinit() and airoha_npu_put(). This can
cause a use-after-free if a reader in an RCU read-side critical
section still holds a reference to the NPU when ... | ```diff
diff --git a/drivers/net/ethernet/airoha/airoha_ppe.c b/drivers/net/ethernet/airoha/airoha_ppe.c
index e7c78293002a..f6396925722d 100644
--- a/drivers/net/ethernet/airoha/airoha_ppe.c
+++ b/drivers/net/ethernet/airoha/airoha_ppe.c
@@ -1659,6 +1659,7 @@ void airoha_ppe_deinit(struct airoha_eth *eth)
npu = rcu_... |
4c1eabbef7a1707635652e956e39db1269c3af2b | Analyze and fix the following issue in the Linux kernel code: dpaa2-switch: put MAC endpoint device on disconnect | Problem Details:
fsl_mc_get_endpoint() returns the MAC endpoint device with a reference
taken through device_find_child(). The switch port connect path stores
that device in mac->mc_dev and keeps it for the lifetime of the connected
MAC object.
However, the disconnect path only closes the MAC and frees the dpaa2_mac
o... | ```diff
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c
index 858ba844ac51..dd4f60031d0c 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c
@@ -1560,6 +1560,7 @@ static void dpa... |
2a12c05aef213ff304ecc9e2f351de20731946b8 | Analyze and fix the following issue in the Linux kernel code: vsock/virtio: collapse receive queue under memory pressure | Problem Details:
When many small packets accumulate in the receive queue, the skb overhead
can exceed buf_alloc even while the payload is within bounds. This causes
virtio_transport_inc_rx_pkt() to reject packets, leading to connection
resets during large transfers under backpressure.
The issue was reported by Brien, ... | ```diff
diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index 09475007165b..8becad81279c 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -26,6 +26,13 @@
/* Threshold for detecting small packets to copy */
#define GOOD... |
745fb794c3e933c023af9dbb5876a5e16ad2dc71 | Analyze and fix the following issue in the Linux kernel code: rxrpc: fix io_thread race in rxrpc_wake_up_io_thread() | Problem Details:
rxrpc_wake_up_io_thread() checks local->io_thread before waking it, but
then reloads the pointer for wake_up_process().
local->io_thread is cleared with WRITE_ONCE() when the I/O thread exits, so
the second load can see NULL even if the first load did not.
Take a READ_ONCE() snapshot and use it for b... | ```diff
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index ce946b0a03e2..865f05fe37ab 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -1285,9 +1285,11 @@ int rxrpc_io_thread(void *data);
void rxrpc_post_response(struct rxrpc_connection *conn, struct sk_buff *skb);
static inline... |
4e646ecd44759e552b0b9ccd995f3f608daab414 | Analyze and fix the following issue in the Linux kernel code: ntfs: drop stale page-cache when shrinking a non-resident attr | Problem Details:
ntfs_non_resident_attr_shrink() shrinks attribute sizes but fails to
trim the page cache. This leaves orphaned dirty folios beyond the new
end of the attribute, leading to writeback failures (-ENOENT), data
loss, and $EA chain corruption.
Fix this by truncating the page cache to the new size immediate... | ```diff
diff --git a/fs/ntfs/attrib.c b/fs/ntfs/attrib.c
index 239b7bcbaedf..58f32aac5f61 100644
--- a/fs/ntfs/attrib.c
+++ b/fs/ntfs/attrib.c
@@ -4293,6 +4293,16 @@ static int ntfs_non_resident_attr_shrink(struct ntfs_inode *ni, const s64 newsiz
ni->initialized_size = newsize;
ctx->attr->data.non_resident.initia... |
8bed376124ab4505b70083a2b91f2c7ef6d51e24 | Analyze and fix the following issue in the Linux kernel code: ntfs: harden runlist realloc size calculations | Problem Details:
Add a shared helper to safely convert runlist element counts to byte sizes
using overflow checks, and use it in both ntfs_rl_realloc() and
ntfs_rl_realloc_nofail().
Fixes: 11ccc9107dc4 ("ntfs: update runlist handling and cluster allocator")
Co-developed-by: Alper Mudar <kommandant_alper@proton.me>
Sig... | ```diff
diff --git a/fs/ntfs/runlist.c b/fs/ntfs/runlist.c
index cbb6576cf725..8e0fd400e7f7 100644
--- a/fs/ntfs/runlist.c
+++ b/fs/ntfs/runlist.c
@@ -71,29 +71,46 @@ static inline void ntfs_rl_mc(struct runlist_element *dstbase, int dst,
* On success, return a pointer to the newly allocated, or recycled, memory.
*... |
5ff172f6c94d282d83cb88bdfec5f647ad9c6105 | Analyze and fix the following issue in the Linux kernel code: slab: silence sparse warning with type-based partitioning | Problem Details:
Sparse does not know __builtin_infer_alloc_token() and complains:
sparse: sparse: undefined identifier '__builtin_infer_alloc_token'
Fix it by using a dummy variant of __kmalloc_token() if __CHECKER__ is
defined.
Fixes: feb662d9168b ("slab: support for compiler-assisted type-based slab cache partit... | ```diff
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 3a14df50766a..32c9f8ed7ae2 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -514,8 +514,12 @@ typedef struct { unsigned long v; } kmalloc_token_t;
extern unsigned long random_kmalloc_seed;
#define __kmalloc_token(...) ((kmalloc_toke... |
96e37e2f618e931aa97af95e707dcdfb1ec41264 | Analyze and fix the following issue in the Linux kernel code: gtp: parse extension headers before reading inner protocol | Problem Details:
GTPv1-U packets may carry a chain of extension headers before the inner
IP packet. The receive path already parses and skips these extension
headers, but it currently reads the inner protocol before doing so.
As a result, the first extension header byte is interpreted as the inner
IP version. Packets ... | ```diff
diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index a60ef32b35b8..c0e38878af51 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -826,13 +826,17 @@ static int gtp1u_udp_encap_recv(struct gtp_dev *gtp, struct sk_buff *skb)
if (!pskb_may_pull(skb, hdrlen))
return -1;
+ gtp1 = (struct gtp1_head... |
5521ae71e32a8069ed4ca6e792179dc57bc43ab2 | Analyze and fix the following issue in the Linux kernel code: rds: drop incoming messages that cross network namespace boundaries | Problem Details:
rds_find_bound() looks up the destination socket using a global
rhashtable keyed solely on (addr, port, scope_id). Network namespaces
are not part of the key, so a sender in netns A can deliver an incoming
message (inc) to a socket that lives in a different netns B.
When this happens, inc->i_conn poi... | ```diff
diff --git a/net/rds/recv.c b/net/rds/recv.c
index 4b3f9e4a8bfd..cf3884d87931 100644
--- a/net/rds/recv.c
+++ b/net/rds/recv.c
@@ -399,6 +399,21 @@ void rds_recv_incoming(struct rds_connection *conn, struct in6_addr *saddr,
goto out;
}
+ /*
+ * rds_find_bound() uses a global (netns-agnostic) hash table.... |
e32649b4bad90a6216d8e93cd7dd050af8ac9740 | Analyze and fix the following issue in the Linux kernel code: net/mlx5e: Use sender devcom for MPV master-up | Problem Details:
After PCIe DPC recovery, mlx5 reloads the affected functions and
replays multiport affiliation events. In the reported failure, the
first relevant device error was:
pcieport 0000:10:01.1: DPC: containment event
pcieport 0000:10:01.1: PCIe Bus Error: severity=Uncorrected (Fatal)
pcieport 0000:10:... | ```diff
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index aa8610cedaa8..c1acb9012d3f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -211,11 +211,11 @@ static void mlx5e_disab... |
4032f8ed10fcb84d41c508dfb04be96589f78dfe | Analyze and fix the following issue in the Linux kernel code: openvswitch: fix GSO userspace truncation underflow | Problem Details:
OVS_ACTION_ATTR_TRUNC currently stores a delta from the original skb
length in OVS_CB(skb)->cutlen. When a later userspace action segments a
GSO skb, queue_gso_packets() reuses that delta for each smaller segment.
A segment can then reach queue_userspace_packet() with cutlen greater
than skb->len, unde... | ```diff
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index 140388a18ae0..513fca6a8e8a 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -837,12 +837,8 @@ static void do_output(struct datapath *dp, struct sk_buff *skb, int out_port,
u16 mru = OVS_CB(skb)->mru;
u32 cutl... |
9573818cc1b7ac22176d0a2b60bfbc440e94f7d5 | Analyze and fix the following issue in the Linux kernel code: ALSA: hda/realtek - Add quirk for Dell Pro QC1255 | Problem Details:
Vendor want to add more machine on this workaround.
Fixes: 97272a5704bf ("ALSA: hda/realtek - Fixed Headphone noise issue for Dell QCM1255")
Signed-off-by: Kailang Yang <kailang@realtek.com>
Link: https://lore.kernel.org/e13d08e96ac449b6994d56dfe6ce3f5c@realtek.com
Signed-off-by: Takashi Iwai <tiwai@s... | ```diff
diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c
index 5840afbcf949..379e1458f4ac 100644
--- a/sound/hda/codecs/realtek/alc269.c
+++ b/sound/hda/codecs/realtek/alc269.c
@@ -7007,7 +7007,11 @@ static const struct hda_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x1028, 0x0cc3, "... |
d163725af84ad958bb74ef4f6eb906a04daa8902 | Analyze and fix the following issue in the Linux kernel code: net: airoha: fix MIB stats collection to be lossless | Problem Details:
REG_FE_GDM_MIB_CLEAR after every read creates a race window where
packets arriving between read and clear are lost from statistics.
Switch to a delta-based approach instead:
- 64-bit H+L registers (ok pkts/bytes, E64..L1023): read absolute
hardware total directly into a local variable; clamp with m... | ```diff
diff --git a/drivers/net/ethernet/airoha/airoha_eth.c b/drivers/net/ethernet/airoha/airoha_eth.c
index 59001fd4b6f7..90aa8b0210bd 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.c
+++ b/drivers/net/ethernet/airoha/airoha_eth.c
@@ -1686,11 +1686,14 @@ static void airoha_qdma_stop_napi(struct airoha_qdma *qdm... |
67b8bfd4ec7dac6e79a7ad9ad19a7a9d6fc35a26 | Analyze and fix the following issue in the Linux kernel code: drm/gpusvm: Zero HMM PFNs before scanning ranges | Problem Details:
drm_gpusvm_scan_mm() asks HMM to report the current CPU page-table
state without faulting missing entries by leaving default_flags set to
zero. The HMM PFN array is still caller-owned input/output state, and
the framework may preserve input bits while filling entries. It is not
safe for the caller to h... | ```diff
diff --git a/drivers/gpu/drm/drm_gpusvm.c b/drivers/gpu/drm/drm_gpusvm.c
index 9aeaca02e928..18ddef94da47 100644
--- a/drivers/gpu/drm/drm_gpusvm.c
+++ b/drivers/gpu/drm/drm_gpusvm.c
@@ -781,7 +781,7 @@ enum drm_gpusvm_scan_result drm_gpusvm_scan_mm(struct drm_gpusvm_range *range,
const struct dev_pagemap *ot... |
847b371debf3c8c72384ab7b9a0c4123a74cc925 | Analyze and fix the following issue in the Linux kernel code: drm/gpusvm: Fix MM reference leak in drm_gpusvm_range_evict | Problem Details:
If kvmalloc_array() fails in drm_gpusvm_range_evict(), the MM
reference acquired earlier is not released, resulting in a reference
leak.
Fix this by dropping the MM reference on the kvmalloc_array()
failure path.
Fixes: 99624bdff867 ("drm/gpusvm: Add support for GPU Shared Virtual Memory")
Cc: stable... | ```diff
diff --git a/drivers/gpu/drm/drm_gpusvm.c b/drivers/gpu/drm/drm_gpusvm.c
index 9a06ff7d2608..9aeaca02e928 100644
--- a/drivers/gpu/drm/drm_gpusvm.c
+++ b/drivers/gpu/drm/drm_gpusvm.c
@@ -1753,8 +1753,10 @@ int drm_gpusvm_range_evict(struct drm_gpusvm *gpusvm,
return -EFAULT;
pfns = kvmalloc_array(npages,... |
be7cc4656eb1f54029610e82d1f0fdd3f9b5ec0a | Analyze and fix the following issue in the Linux kernel code: net/iucv: fix use-after-free of a severed iucv_path | Problem Details:
af_iucv queues not-yet-received message notifications on iucv->message_q,
each holding a raw pointer to the connection's iucv_path. When the peer
severs the connection, iucv_sever_path() frees that path with
iucv_path_free() but leaves the notifications queued. A later recvmsg()
drains message_q via ... | ```diff
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index b85fb9767dec..e3e71d168c47 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -337,6 +337,7 @@ static void iucv_sever_path(struct sock *sk, int with_user_data)
unsigned char user_data[16];
struct iucv_sock *iucv = iucv_sk(sk);
struct iucv... |
c4c0673e4cb15b0c127e6d00732a2427bdd12c11 | Analyze and fix the following issue in the Linux kernel code: btrfs: raid56: fix scrub read assembly submitting no reads | Problem Details:
Commit 5387bd958180 ("btrfs: raid56: remove sector_ptr structure")
converted the bio-list membership checks from sector pointers to
physical addresses. The two conversions in rmw_assemble_write_bios()
kept their polarity (skip the sector when it is NOT in the bio list,
i.e. when there is nothing to wri... | ```diff
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 3f2896e793e3..ca94c9e3d563 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -2911,13 +2911,12 @@ static int scrub_assemble_read_bios(struct btrfs_raid_bio *rbio)
continue;
/*
- * We want to find all the sectors missing from the rbio an... |
ab602da96a915d42dcb1b0b322e8daea0f71b51f | Analyze and fix the following issue in the Linux kernel code: btrfs: zoned: skip fully truncated ordered extents at zone finish | Problem Details:
A fully truncated ordered extent (truncated_len == 0) wrote no data, so its
->csum_list is empty and btrfs_finish_ordered_zoned() trips:
assertion failed: !list_empty(&ordered->csum_list), in fs/btrfs/zoned.c:2141
Since commit 66ff4d366e7e a short or cancelled direct IO write finishes the
unsubmitt... | ```diff
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index 0706c0788cb2..a016cb471beb 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -2138,6 +2138,16 @@ void btrfs_finish_ordered_zoned(struct btrfs_ordered_extent *ordered)
if (test_bit(BTRFS_ORDERED_PREALLOC, &ordered->flags))
return;
+ /*
+ * A fu... |
8bc4d7209611e8aa9d5409b6a4a86a9eb91b69a3 | Analyze and fix the following issue in the Linux kernel code: btrfs: zoned: fix missing chunk metadata reservation | Problem Details:
reserve_chunk_space() stores the return value of
btrfs_zoned_activate_one_bg() in ret. The helper can return 1 after
successfully activating a block group, but ret is later used to decide
whether to reserve metadata for chunk tree updates.
As a result, successful activation skips btrfs_block_rsv_add()... | ```diff
diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c
index ab76a5173272..8def7abb728f 100644
--- a/fs/btrfs/block-group.c
+++ b/fs/btrfs/block-group.c
@@ -4532,25 +4532,29 @@ static void reserve_chunk_space(struct btrfs_trans_handle *trans,
if (IS_ERR(bg)) {
ret = PTR_ERR(bg);
} else {
+ int... |
330dcc553f282e8dc0b88c9495b4c296465364e1 | Analyze and fix the following issue in the Linux kernel code: btrfs: raid56: fix an incorrect csum skip during scrub | Problem Details:
Commit 7425a2894019 ("btrfs: introduce btrfs_bio_for_each_block_all()
helper") uses the new helper to replace the nested loop inside
verify_bio_data_sectors(), which simplifies the code.
However that also changed the behavior of "continue" when a block has no
data checksum.
Previously the "continue" ... | ```diff
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index f7f7db40994c..3f2896e793e3 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -1679,8 +1679,10 @@ static void verify_bio_data_sectors(struct btrfs_raid_bio *rbio,
continue;
/* No csum for this sector, skip to the next sector. */
- if (!te... |
c438d34ec1eed4d23e2081d61c5e96f5176898a9 | Analyze and fix the following issue in the Linux kernel code: btrfs: report missing raid stripe tree root during lookup | Problem Details:
When rescue=ibadroots ignores a failure to load the raid stripe tree root,
fs_info->stripe_root remains NULL. After the rescue mount proceeds, reading
file data that requires the raid stripe tree reaches
btrfs_get_raid_extent_offset().
Currently btrfs_search_slot() handles the NULL root and returns -E... | ```diff
diff --git a/fs/btrfs/raid-stripe-tree.c b/fs/btrfs/raid-stripe-tree.c
index 454a95bf542a..b210371ce91e 100644
--- a/fs/btrfs/raid-stripe-tree.c
+++ b/fs/btrfs/raid-stripe-tree.c
@@ -414,6 +414,12 @@ int btrfs_get_raid_extent_offset(struct btrfs_fs_info *fs_info,
int slot;
int ret;
+ if (unlikely(!stripe_... |
51a0e8399858621442807a26057bcd1cd3ced046 | Analyze and fix the following issue in the Linux kernel code: btrfs: skip global block reserve accounting for rescue mounts | Problem Details:
[BUG]
Mounting with rescue=ibadroots after corrupting the block group tree
root triggers a NULL pointer dereference:
BUG: kernel NULL pointer dereference, address: 0000000000000100
RIP: 0010:btrfs_update_global_block_rsv+0x9d/0x1c0 [btrfs]
Call Trace:
fill_dummy_bgs+0xd4/0x120 [btrfs]
open... | ```diff
diff --git a/fs/btrfs/block-rsv.c b/fs/btrfs/block-rsv.c
index 9efb3016ef11..c68a8f4b7d19 100644
--- a/fs/btrfs/block-rsv.c
+++ b/fs/btrfs/block-rsv.c
@@ -322,10 +322,25 @@ void btrfs_block_rsv_add_bytes(struct btrfs_block_rsv *block_rsv,
void btrfs_update_global_block_rsv(struct btrfs_fs_info *fs_info)
{
s... |
5fabb1cf25d723274009d7b759545fd59f230c9d | Analyze and fix the following issue in the Linux kernel code: btrfs: zoned: reset meta_write_pointer on zone reset | Problem Details:
btrfs_reset_unused_block_groups() resets a block group's zone and sets
alloc_offset back to 0 so the space can be reused, but it leaves
meta_write_pointer pointing at the previous end of the zone.
Once the block group is reactivated and reused for metadata, newly
allocated tree blocks live before that... | ```diff
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index 44a13ed6b8b2..0706c0788cb2 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -3189,6 +3189,17 @@ int btrfs_reset_unused_block_groups(struct btrfs_space_info *space_info, u64 num
reclaimed = bg->alloc_offset;
bg->zone_unusable = bg->length - bg->... |
1ebe51c29fa9755d5b2fea28727c051117907cf8 | Analyze and fix the following issue in the Linux kernel code: btrfs: zoned: fix deadlock between metadata writeback and transaction commit | Problem Details:
When writing out metadata extent buffers in a zoned filesystem,
btree_writepages() holds fs_info->zoned_meta_io_lock across the whole
writeback loop, including the call to btrfs_check_meta_write_pointer() ->
check_bg_is_active().
For the tree-log block group, check_bg_is_active() may fail to activate
... | ```diff
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index 97f06dd01693..44a13ed6b8b2 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -2190,7 +2190,11 @@ static bool check_bg_is_active(struct btrfs_eb_write_context *ctx,
if (fs_info->treelog_bg == block_group->start) {
if (!btrfs_zone_activate(block_... |
6881f45d0eb541f2cee8c37c84b3860a23823bb3 | Analyze and fix the following issue in the Linux kernel code: btrfs: fix leaking BTRFS_FS_STATE_REMOUNTING flag | Problem Details:
[BUG]
The following script can lead to unexpected qgroup rescan failure:
# mkfs.btrfs -f -O quota $dev
# mount $dev $mnt
# mount -o remount,rescue=ibadroots $mnt
^^^^^ This above command is expected to fail
# btrfs quota rescan -w $mnt
^^^^^ The above qgroup rescan is not expected to ... | ```diff
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index c946bccf0748..63bf1f1e16d4 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1519,12 +1519,14 @@ static int btrfs_reconfigure(struct fs_context *fc)
sync_filesystem(sb);
set_bit(BTRFS_FS_STATE_REMOUNTING, &fs_info->fs_state);
- if (!btrfs_check... |
b27e195d4db8dea263050bdbeb11881b2999c9c6 | Analyze and fix the following issue in the Linux kernel code: cdrom: fix stack out-of-bounds read in CDROMVOLCTRL | Problem Details:
mmc_ioctl_cdrom_volume() first reads the audio control mode page into a
32-byte stack buffer with cgc->buflen set to 24. If the device reports a
block descriptor, the function increases cgc->buflen to include that
descriptor and reads the page again.
For CDROMVOLCTRL, the function then builds a MODE ... | ```diff
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 62934cf4b10d..4f1fd389260f 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -3187,6 +3187,7 @@ static noinline int mmc_ioctl_cdrom_volume(struct cdrom_device_info *cdi,
/* set volume */
cgc->buffer = buffer + offset - 8;
+ c... |
f418d68d71fd4a0a9cef92377bc8c4c3334b5b53 | Analyze and fix the following issue in the Linux kernel code: tracing/eprobe: Fix exact system name matching in eprobe_dyn_event_match() | Problem Details:
eprobe_dyn_event_match() checks if the target event system in argv[0]
matches ep->event_system using strncmp(ep->event_system, argv[0], len).
However, if ep->event_system is longer than len (e.g. "eprobes" vs
"ep/event"), strncmp() still returns 0 because the first len characters
match.
Check that ep-... | ```diff
diff --git a/kernel/trace/trace_eprobe.c b/kernel/trace/trace_eprobe.c
index 50518b071414..bcd97cb24ac9 100644
--- a/kernel/trace/trace_eprobe.c
+++ b/kernel/trace/trace_eprobe.c
@@ -172,7 +172,8 @@ static bool eprobe_dyn_event_match(const char *system, const char *event,
if (!slash)
return false;
- if (... |
8ce20bfba48902e1382187cd1a852f7cf3a1e739 | Analyze and fix the following issue in the Linux kernel code: tracing/probes: Fix potential underflow in LEN_OR_ZERO macro | Problem Details:
In __set_print_fmt(), LEN_OR_ZERO is defined as (len ? len - pos : 0).
If len is non-zero but smaller than pos, len - pos evaluates to a negative
integer. When passed as a size argument to snprintf(), this negative value
is cast to a large unsigned size_t, bypassing buffer size limits.
Ensure len > po... | ```diff
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 49daa3cc2a45..506e6037e163 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -2013,7 +2013,7 @@ int traceprobe_update_arg(struct probe_arg *arg)
}
/* When len=0, we just calculate the needed length */
-#defi... |
a9d6fb284039a5d3858a1d9f9a0d7e46cfb7c2d4 | Analyze and fix the following issue in the Linux kernel code: tracing/probes: Prevent out-of-bounds write in __trace_probe_log_err() | Problem Details:
If trace_probe_log.argc is 0 in __trace_probe_log_err(), the loop
constructing the command string will not execute and p will remain equal to
command. Writing to *(p - 1) will cause an out-of-bounds access before
command. This should not happen, but better to be treated.
Reject if trace_probe_log.argc... | ```diff
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 95e3d072321f..49daa3cc2a45 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -188,7 +188,7 @@ void __trace_probe_log_err(int offset, int err_type)
lockdep_assert_held(&dyn_event_ops_mutex);
- if (!trace_pr... |
15f197856d68882af9416fc97516bb55079b7677 | Analyze and fix the following issue in the Linux kernel code: tracing/probes: Avoid temporary buffer truncation in trace_probe_match_command_args() | Problem Details:
In trace_probe_match_command_args(), a stack buffer buf[MAX_ARGSTR_LEN + 1]
(256 bytes) is used to format "<name>=<comm>". However, since name can
be up to 32 bytes (MAX_ARG_NAME_LEN) and comm up to 255 bytes
(MAX_ARGSTR_LEN), the formatted string can exceed 256 bytes and get
truncated by snprintf(), c... | ```diff
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index d17cfee77d9c..95e3d072321f 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -2338,16 +2338,17 @@ int trace_probe_compare_arg_type(struct trace_probe *a, struct trace_probe *b)
bool trace_probe_match_command_ar... |
1c975de3343cdef506f2eecc833cc1f14b0401c4 | Analyze and fix the following issue in the Linux kernel code: bonding: fix devconf_all NULL dereference when IPv6 is disabled | Problem Details:
When booting with the 'ipv6.disable=1' parameter, the devconf_all is
never initialized because inet6_init() exits before addrconf_init() is
called which initializes it. bond_send_validate(), however, will still
call bond_ns_send_all() even ipv6 is indeed disabled. It will lead to
NULL derefence of net-... | ```diff
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index e044fc733b8c..522eab060f9e 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3455,7 +3455,8 @@ static void bond_send_validate(struct bonding *bond, struct slave *slave)
{
bond_arp_send_al... |
ec48b3be2c8595dd290be883dbd4fb8b2f9f5d5e | Analyze and fix the following issue in the Linux kernel code: net/sched: Handle TC_ACT_REDIRECT from qdisc filter chains | Problem Details:
When a TC filter attached to a qdisc filter chain returns
TC_ACT_REDIRECT (ex: via an eBPF program calling bpf_redirect() or an
act_bpf action), the redirect was silently lost i.e no qdisc classify
function handled TC_ACT_REDIRECT, so the packet fell through the
switch and was enqueued normally instead... | ```diff
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 3bd08d7f39c1..5f5cb36439fe 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -156,8 +156,20 @@ static inline int tcf_classify(struct sk_buff *skb,
{
return TC_ACT_UNSPEC;
}
-
#endif
+static inline int tcf_classify_qdisc(struct... |
3f4920d165b29052255527d8ae7619e7ec132ece | Analyze and fix the following issue in the Linux kernel code: bpf: Reject redirect helpers without a bpf_net_context | Problem Details:
The bpf_redirect*() helpers and skb_do_redirect() obtain the per-task
bpf_redirect_info via bpf_net_ctx_get_ri(), which dereferences the
current->bpf_net_context unconditionally. That context is established
on the paths that run tc BPF such as sch_handle_{ingress,egress}(),
*except* for the case where ... | ```diff
diff --git a/net/core/filter.c b/net/core/filter.c
index b446aa8be5c3..11bb0d236822 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -2552,11 +2552,13 @@ out_drop:
BPF_CALL_2(bpf_redirect, u32, ifindex, u64, flags)
{
- struct bpf_redirect_info *ri = bpf_net_ctx_get_ri();
+ struct bpf_redirect_info ... |
50aff80475abd3533eef4320477037e6fcc6b56e | Analyze and fix the following issue in the Linux kernel code: net/packet: avoid fanout hook re-registration after unregister | Problem Details:
packet_set_ring() temporarily detaches a socket from packet delivery while
reconfiguring its ring. It records the previous running state, clears
po->num, unregisters the protocol hook when needed, drops po->bind_lock,
and later restores po->num and re-registers the hook from the saved
was_running value... | ```diff
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 8e6f3a734ba0..e75d2932475a 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -4561,7 +4561,11 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u,
spin_lock(&po->bind_lock);
WRITE_ONCE(po->num, num);... |
f6e3b21608e974c4aaa4cfd73a239dacf1d8a9a3 | Analyze and fix the following issue in the Linux kernel code: netlink: specs: rt-link: convert bridge port flag attributes to u8 | Problem Details:
A number of IFLA_BRPORT_* attributes are documented in the rt-link spec
as having the "flag" type, i.e. a payload-less NLA_FLAG attribute whose
meaning is presence-only. This does not match the kernel, which emits
these attributes with nla_put_u8() and validates them as NLA_U8 in
br_port_policy[]. The ... | ```diff
diff --git a/Documentation/netlink/specs/rt-link.yaml b/Documentation/netlink/specs/rt-link.yaml
index 892979da098e..68c26a70bb64 100644
--- a/Documentation/netlink/specs/rt-link.yaml
+++ b/Documentation/netlink/specs/rt-link.yaml
@@ -1585,31 +1585,31 @@ attribute-sets:
type: u32
-
name... |
ef01724fa235a228e3d3e8b117e89403cd8feb25 | Analyze and fix the following issue in the Linux kernel code: selftests/net: Fix tun IPv6 test addresses to avoid 6to4 range | Problem Details:
The IPv6 addresses used for the tun_vnet_udptnl fixture currently fall in
the 2002::/16 prefix, which is reserved for the 6to4 transition mechanism
(RFC 3056).
On systems where the sit module is loaded, the kernel automatically claims
2002::/16 as a 6to4 tunnel prefix. When the test assigns a 2002:: a... | ```diff
diff --git a/tools/testing/selftests/net/tun.c b/tools/testing/selftests/net/tun.c
index cf106a49b55e..abe488bac50b 100644
--- a/tools/testing/selftests/net/tun.c
+++ b/tools/testing/selftests/net/tun.c
@@ -42,19 +42,19 @@ static struct in_addr param_ipaddr4_inner_src = {
};
static struct in6_addr param_ipa... |
7d8ca62d6a9ef593780161586b4efc811ac094fe | Analyze and fix the following issue in the Linux kernel code: net: phy: marvell: fix return code | Problem Details:
Return the correct error code, not the value written to the register.
Fixes: a219912e0fec ("net: phy: marvell: implement config_inband() method")
Signed-off-by: Michael Walle <mwalle@kernel.org>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/2026070612063... | ```diff
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 7a578b5aa2ed..f71cffa88406 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -753,7 +753,7 @@ static int m88e1111_config_inband(struct phy_device *phydev, unsigned int modes)
err = phy_modify(phydev, MII_M1111_PHY... |
40de8160ca7f67d14619ee0351ce5d68fc4a237a | Analyze and fix the following issue in the Linux kernel code: fs/proc/task_mmu: fix PAGEMAP_SCAN written state for PMD holes | Problem Details:
PAGEMAP_SCAN reports an unpopulated PTE in a uffd-wp VMA as written, but a
range with no page table at all -- a PMD hole -- is skipped:
pagemap_scan_pte_hole() tests p->cur_vma_category, which never carries
PAGE_IS_WRITTEN, so the hole is neither reported nor (under
PM_SCAN_WP_MATCHING) armed.
In a uf... | ```diff
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index d45c729ab6bb..229d1fc3d7f1 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -3049,12 +3049,28 @@ static int pagemap_scan_pte_hole(unsigned long addr, unsigned long end,
{
struct pagemap_scan_private *p = walk->private;
struct vm_area_str... |
dd9623f58ec702a07b2d67179d6fcea79c52231a | Analyze and fix the following issue in the Linux kernel code: mm/hugetlb: fix list corruption in allocate_file_region_entries() | Problem Details:
allocate_file_region_entries() tops up resv->region_cache with freshly
allocated file_region descriptors. The allocation uses GFP_KERNEL, so
resv->lock is dropped around it: the new entries are gathered on a
stack-local list head, allocated_regions, and spliced into
resv->region_cache once the lock is... | ```diff
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index bca2707d02e3..e93c4d2456aa 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -693,7 +693,7 @@ static int allocate_file_region_entries(struct resv_map *resv,
spin_lock(&resv->lock);
- list_splice(&allocated_regions, &resv->region_cache);
+ list_splice_init(&a... |
de4660898b7aa7e03d3b120a6bfa6b26211e4e77 | Analyze and fix the following issue in the Linux kernel code: mm: mglru: fix stale batch updates after memcg reparenting | Problem Details:
The mglru page table walker batches per-generation size deltas in
walk->nr_pages while walking page tables without holding the lruvec lock.
The reset_batch_size() later folds those deltas into walk->lruvec under
the lruvec lock.
The page table walker can run concurrently with the memcg reparenting pa... | ```diff
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index e1f46a0016fc..957260677678 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -1472,6 +1472,31 @@ static inline void lruvec_lock_irq(struct lruvec *lruvec)
spin_lock_irq(&lruvec->lru_lock);
}
+static inline ... |
e3a0127eee04db8769e53c8102c4e76aa49be8c3 | Analyze and fix the following issue in the Linux kernel code: selftest: fix headers in fclog.c | Problem Details:
fclog.c does not compile because it is missing fcntl.h, needed for
O_RDONLY etc.
There are also some redundant includes that are also in
kselftest_harness.h.
Link: https://lore.kernel.org/20260710171741.837308-1-jkoolstra@xs4all.nl
Signed-off-by: Jori Koolstra <jkoolstra@xs4all.nl>
Cc: Aleksa Sarai <... | ```diff
diff --git a/tools/testing/selftests/filesystems/fclog.c b/tools/testing/selftests/filesystems/fclog.c
index 551c4a0f395a..593a5136e991 100644
--- a/tools/testing/selftests/filesystems/fclog.c
+++ b/tools/testing/selftests/filesystems/fclog.c
@@ -6,10 +6,8 @@
#include <assert.h>
#include <errno.h>
+#include... |
df8ce7ab48d01ac4f247599b35f0506d95ff57e1 | Analyze and fix the following issue in the Linux kernel code: ocfs2: fix boundary check in ocfs2_check_dir_entry() to use buffer offset | Problem Details:
Commit 390ac56cf0f6 ("ocfs2: add boundary check to
ocfs2_check_dir_entry()") added an out-of-bounds guard using the
caller-supplied 'offset' argument:
if (offset > size - OCFS2_DIR_REC_LEN(1))
return 0;
However, 'offset' and 'size' are not measured against the same base for
all callers. In the bl... | ```diff
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index 8e6b03238327..d7fc3cccf2f4 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -302,10 +302,11 @@ static int ocfs2_check_dir_entry(struct inode *dir,
unsigned long offset)
{
const char *error_msg = NULL;
+ unsigned long buf_offset = (char *)de - buf;
... |
89b1b79c308818a715e75f28744b70d8940a07c9 | Analyze and fix the following issue in the Linux kernel code: mm/percpu-km: fix bitmap overflow and accounting in pcpu_create_chunk() | Problem Details:
In pcpu_create_chunk(), nr_pages is the total contiguous backing
allocation, i.e., nr_units * pcpu_unit_pages, but pcpu_chunk_populated()
uses it to set chunk->populated, whose size is pcpu_unit_pages, bitmap.
Since bit N in chunk->populated means page offset N inside every unit is
backed. When nr_un... | ```diff
diff --git a/mm/percpu-km.c b/mm/percpu-km.c
index 4efa74a495cb..dc096b5a6ce4 100644
--- a/mm/percpu-km.c
+++ b/mm/percpu-km.c
@@ -75,7 +75,7 @@ static struct pcpu_chunk *pcpu_create_chunk(gfp_t gfp)
chunk->base_addr = page_address(pages);
spin_lock_irqsave(&pcpu_lock, flags);
- pcpu_chunk_populated(chunk... |
7441d6348c70738e9ed307510db171c7a9b3f4bf | Analyze and fix the following issue in the Linux kernel code: mm/util: don't read __page_2 for order-1 folios in snapshot_page() | Problem Details:
snapshot_page() currently reads __page_2 after checking nr_pages > 1, but
it should only do so when nr_pages > 2.
If an order-1 folio is allocated at the end of a vmemmap section,
__page_2 will not exist and reading it will cause a fault.
During DLPAR memory remove on a 22 TB ppc64le LPAR, snapshot_p... | ```diff
diff --git a/mm/util.c b/mm/util.c
index af2c2103f0d9..34cb43b3eaa4 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -1353,7 +1353,7 @@ again:
if (ps->idx < MAX_FOLIO_NR_PAGES) {
memcpy(&ps->folio_snapshot, foliop, 2 * sizeof(struct page));
nr_pages = folio_nr_pages(&ps->folio_snapshot);
- if (nr_pages > 1)
+... |
83abe2fd5b3aeb3123b5408a5a91709c5538fb23 | Analyze and fix the following issue in the Linux kernel code: mm/hugetlb: fix swap entry corruption when clearing uffd-wp at fork() | Problem Details:
copy_hugetlb_page_range() clears the uffd-wp bit of migration and hwpoison
entries with huge_pte_clear_uffd_wp(), which operates on the present-PTE
bit position. Swap entries keep the uffd-wp state elsewhere -- the
migration branch reads and sets it with pte_swp_uffd_wp() and
pte_swp_mkuffd_wp() -- an... | ```diff
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 571212b80835..bca2707d02e3 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -4917,8 +4917,12 @@ again:
softleaf = softleaf_from_pte(entry);
if (unlikely(softleaf_is_hwpoison(softleaf))) {
- if (!userfaultfd_wp(dst_vma))
- entry = huge_pte_clear_uffd_wp(... |
63867c82d0c0c2d182016a32b1cc0103116b0ea5 | Analyze and fix the following issue in the Linux kernel code: mm: migrate_device: fix pte_pfn/pte_dirty called on non-present PTE | Problem Details:
pte_pfn() and pte_dirty() have undefined behaviour when called on a
non-present PTE. In migrate_vma_collect_pmd(), these functions may be
invoked on non-present entries (e.g., device-private entries), leading
to potential crashes from pte_pfn() or incorrect dirty folio accounting
from pte_dirty(). Fix ... | ```diff
diff --git a/mm/migrate_device.c b/mm/migrate_device.c
index 554754eb26ff..908d2d4ec43a 100644
--- a/mm/migrate_device.c
+++ b/mm/migrate_device.c
@@ -401,7 +401,8 @@ again:
bool anon_exclusive;
pte_t swp_pte;
- flush_cache_page(vma, addr, pte_pfn(pte));
+ if (pte_present(pte))
+ flush_cache_pa... |
07b4377bdbe74a3ec0c8da5849d014f70e003384 | Analyze and fix the following issue in the Linux kernel code: fs/proc/task_mmu: fix PAGEMAP_SCAN written state for unpopulated ptes | Problem Details:
PAGEMAP_SCAN reports an unpopulated pte differently depending on which
path serves the request. The PAGE_IS_WRITTEN fast path in
pagemap_scan_pmd_entry() reports a pte_none as written (and, under
PM_SCAN_WP_MATCHING, arms a marker); pagemap_page_category() returns 0 for
the same pte_none. A request t... | ```diff
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index d32408f7cd5e..d45c729ab6bb 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -2432,8 +2432,18 @@ static unsigned long pagemap_page_category(struct pagemap_scan_private *p,
{
unsigned long categories;
- if (pte_none(pte))
- return 0;
+ if... |
4165b7d1c45c2da0dfefe528f8d1fb7d79f0d344 | Analyze and fix the following issue in the Linux kernel code: userfaultfd: wait on source PMD during UFFDIO_MOVE | Problem Details:
move_pages_huge_pmd() snapshots src_pmdval under src_ptl, drops the lock,
and, for migration entries, waits with pmd_migration_entry_wait().
Passing &src_pmdval is wrong. pmd_migration_entry_wait() must lock and
re-read the real page-table PMD; on split-PMD-lock kernels, a stack
address also resolves... | ```diff
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index b5d1e9d4463d..032702a4637b 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2774,7 +2774,7 @@ int move_pages_huge_pmd(struct mm_struct *mm, pmd_t *dst_pmd, pmd_t *src_pmd, pm
if (!pmd_trans_huge(src_pmdval)) {
spin_unlock(src_ptl);
if (pmd_i... |
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