CVE-2026-80635
wifi: wcn36xx: fix OOB read from short trigger BA firmware response
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 28, 2026 |
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Affected Versions
Linux / Linux
16be1ac55944412e8d132b1db26f994b368c5742 < 04aba50212f9f274e1a726fb3873b5ce8da2d821 16be1ac55944412e8d132b1db26f994b368c5742 < c07aa0534d50361183833e3803204044cf1d0476 16be1ac55944412e8d132b1db26f994b368c5742 < d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35 16be1ac55944412e8d132b1db26f994b368c5742 < af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee 16be1ac55944412e8d132b1db26f994b368c5742 < d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2 16be1ac55944412e8d132b1db26f994b368c5742 < b5e6f21923ca89d90256e7346301056f6502691e
Linux / Linux
4.7
References
git.kernel.org: https://git.kernel.org/stable/c/04aba50212f9f274e1a726fb3873b5ce8da2d821 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/af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee git.kernel.org: https://git.kernel.org/stable/c/d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2 git.kernel.org: https://git.kernel.org/stable/c/b5e6f21923ca89d90256e7346301056f6502691e