wifi: ath12k: Avoid buffer overread in ath12k_wmi_op_rx()

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Summary

CVECVE-2026-92497
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-17 17:17:52 UTC
Updated2026-09-17 17:17:52 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Avoid buffer overread in ath12k_wmi_op_rx() Currently, in ath12k_wmi_op_rx(), the firmware buffer is read without first verifying that the buffer has enough data to hold a header. This could result in a buffer overread. Update the logic to verify the buffer contains at least enough data to hold a wmi_cmd_hdr before reading from the buffer. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c7-00108-QCAHMTSWPL_V1.0_V2.0_SILICONZ_UPSTREAM-3

Risk And Classification

EPSS: 0.001680000 probability, percentile 0.064560000 (date 2026-09-18)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected d889913205cf7ebda905b1e62c5867ed4e39f6c2 9784faa6afd26693287e8e4569bdedee00212909 git Not specified
CNA Linux Linux affected d889913205cf7ebda905b1e62c5867ed4e39f6c2 07659388110de004cbb753f3c7bc85e657e51f7a git Not specified
CNA Linux Linux affected d889913205cf7ebda905b1e62c5867ed4e39f6c2 95d1bd1db9e9d8eccffc880166e01c4775115716 git Not specified
CNA Linux Linux affected d889913205cf7ebda905b1e62c5867ed4e39f6c2 9e6ec0977f0b9c16fc20efea050e3eea8f66e34b git Not specified
CNA Linux Linux affected d889913205cf7ebda905b1e62c5867ed4e39f6c2 7698656a2f7b045af5a6859766238cefea1b1945 git Not specified
CNA Linux Linux affected 6.3 Not specified
CNA Linux Linux unaffected 6.3 semver Not specified
CNA Linux Linux unaffected 6.6.157 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.110 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.52 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.6 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/07659388110de004cbb753f3c7bc85e657e51f7a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7698656a2f7b045af5a6859766238cefea1b1945 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9e6ec0977f0b9c16fc20efea050e3eea8f66e34b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/95d1bd1db9e9d8eccffc880166e01c4775115716 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9784faa6afd26693287e8e4569bdedee00212909 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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