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Vulnerabilities CVE-2026-68353

CVE-2026-68353

High
Open
TLP:CLEAR

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

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Description

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.

Details

CVSS Score
8.1
CVSS Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Confidence
90%
Published
Aug 10, 2026
Last Modified
Aug 13, 2026
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