wifi: ath12k: Fix MSDU buffer types handling in RX error path

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-68729
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-24 11:16:02 UTC
Updated2026-10-21 13:18:23 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Fix MSDU buffer types handling in RX error path Currently, packets received on the REO exception ring from unassociated peers are of MSDU buffer type, while the driver expects link descriptor type packets. These packets are not parsed further due to a return check on packet type in ath12k_hal_desc_reo_parse_err(), but the associated skb is not freed. This may lead to kernel crashes and buffer leaks. Hence to fix, update the RX error handler to explicitly drop MSDU buffer type packets received on the REO exception ring. This prevents further processing of invalid packets and ensures stability in the RX error handling path. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected d889913205cf7ebda905b1e62c5867ed4e39f6c2 abfbceda0d2391524ad1df88867b3f3af36d17c7 git Not specified
CNA Linux Linux affected d889913205cf7ebda905b1e62c5867ed4e39f6c2 17a9b93283c6f0b799a338bbc50fa115012429d9 git Not specified
CNA Linux Linux affected d889913205cf7ebda905b1e62c5867ed4e39f6c2 5ff5a9d71cdc49c3400f30583a784ad0a17d01ec git Not specified
CNA Linux Linux affected d889913205cf7ebda905b1e62c5867ed4e39f6c2 ab0554f51e5f2b9506e8a09e8accd02f00056729 git Not specified
CNA Linux Linux affected d889913205cf7ebda905b1e62c5867ed4e39f6c2 36f9edbb9d0fc36c865c74f3c1ad8e1261ad3981 git Not specified
CNA Linux Linux affected 6.3 Not specified
CNA Linux Linux unaffected 6.3 semver Not specified
CNA Linux Linux unaffected 6.6.160 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.114 6.12.* semver Not specified
CNA Linux Linux unaffected 6.17.13 6.17.* semver Not specified
CNA Linux Linux unaffected 6.18.2 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/ab0554f51e5f2b9506e8a09e8accd02f00056729 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/36f9edbb9d0fc36c865c74f3c1ad8e1261ad3981 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/17a9b93283c6f0b799a338bbc50fa115012429d9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/abfbceda0d2391524ad1df88867b3f3af36d17c7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5ff5a9d71cdc49c3400f30583a784ad0a17d01ec 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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