CVEvulnerability
CVE-2026-80635
8.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-28
- Last modified
- 2026-08-29
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: wcn36xx: fix OOB read from short trigger BA firmware response
The firmware response length is only checked against sizeof(*rsp) (20
bytes), but when candidate_cnt >= 1, a 22-byte candidate struct is read
at buf + 20 without verifying the response contains it. This causes an
out-of-bounds read of stale heap data, corrupting the BA session state.
Add validation that the response includes the candidate data.
References
- https://git.kernel.org/stable/c/04aba50212f9f274e1a726fb3873b5ce8da2d821 git.kernel.org
- https://git.kernel.org/stable/c/af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee git.kernel.org
- https://git.kernel.org/stable/c/b5e6f21923ca89d90256e7346301056f6502691e git.kernel.org
- https://git.kernel.org/stable/c/c07aa0534d50361183833e3803204044cf1d0476 git.kernel.org
- https://git.kernel.org/stable/c/d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35 git.kernel.org
- https://git.kernel.org/stable/c/d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2 git.kernel.org