CVE-2026-68353

In 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.

CVSS 3.1

8.1CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-25)

CWE

CWE-125

Published

2026-08-10

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

References

• https://git.kernel.org/stable/c/0e0fc04af9b443c6b425f00fb604ff599bc80d1d
• https://git.kernel.org/stable/c/289edc3c71344b89e6522891147cfb8f61b088bb
• https://git.kernel.org/stable/c/35196a07603f8c94a4943093bc26d5b5826285f8
• https://git.kernel.org/stable/c/3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495
• https://git.kernel.org/stable/c/5297299c3fa6133275db0be99d69cd759b6cbfe9

Check your stackJSON