wifi: ath6kl: fix OOB read from firmware num_msg in TX complete handler

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-68353
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 13:20:27 UTC
Updated2026-08-10 13:20:27 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: fix OOB read from firmware num_msg in TX complete handler The firmware-controlled num_msg field (u8, 0-255) drives the loop in ath6kl_wmi_tx_complete_event_rx() without validation against the buffer length. This allows out-of-bounds reads of up to 1020 bytes past the WMI event buffer when the firmware sends an inflated num_msg. Add a check that the buffer is large enough to hold the fixed struct and the num_msg variable-length entries.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected bdcd81707973cf8aa9305337166f8ee842a050d4 69ac7ba3a3df6654e7daa82674575a8c4a1a63ea git Not specified
CNA Linux Linux affected bdcd81707973cf8aa9305337166f8ee842a050d4 289edc3c71344b89e6522891147cfb8f61b088bb git Not specified
CNA Linux Linux affected bdcd81707973cf8aa9305337166f8ee842a050d4 eb636fbc443149b3501c3f97e26225ddcb314a0f git Not specified
CNA Linux Linux affected bdcd81707973cf8aa9305337166f8ee842a050d4 c38b0d5c661951b5dd082bdf31f8a57a0ce6e540 git Not specified
CNA Linux Linux affected bdcd81707973cf8aa9305337166f8ee842a050d4 3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495 git Not specified
CNA Linux Linux affected 3.2 Not specified
CNA Linux Linux unaffected 3.2 semver Not specified
CNA Linux Linux unaffected 6.6.148 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.101 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.42 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.6 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc5 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/289edc3c71344b89e6522891147cfb8f61b088bb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c38b0d5c661951b5dd082bdf31f8a57a0ce6e540 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/eb636fbc443149b3501c3f97e26225ddcb314a0f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/69ac7ba3a3df6654e7daa82674575a8c4a1a63ea 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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