SB20260812176 - Out-of-bounds read in Linux kernel ath ath11k driver
Published: August 12, 2026
Security Bulletin ID
SB20260812176
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2026-68355)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local attacker to cause a denial of service.
The vulnerability exists due to out-of-bounds read in ath11k_hal_rx_msdu_list_get() when processing msdu descriptor entries. A local attacker can trigger a zero buffer address in the first msdu_details entry to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/69a6a4f60b2da92c0bdfd9264b8ffe053f51f52a
- https://git.kernel.org/stable/c/725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5
- https://git.kernel.org/stable/c/7f11e70629650ff6ea140984e5ce188b775b2683
- https://git.kernel.org/stable/c/904367381a922aa2dc3e8bd2488e6c9180516c7a
- https://git.kernel.org/stable/c/a154ca3c441a67d36b3a9ea63a4f11b06abe6223