CVEvulnerability
CVE-2026-74341
8.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-15
- Last modified
- 2026-08-17
- 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 heap overflow from oversized firmware HAL response
The firmware response dispatcher copies all synchronous HAL responses
into the 4096-byte hal_buf without validating the response length. A
response exceeding WCN36XX_HAL_BUF_SIZE causes a heap buffer overflow
with firmware-controlled content.
Add a bounds check on the response length.
References
- https://git.kernel.org/stable/c/15545ee71301e82d26d9a31b407ed0019eb62a60 git.kernel.org
- https://git.kernel.org/stable/c/18813b90032bfaafb225906a4d2b51be4dfc02c3 git.kernel.org
- https://git.kernel.org/stable/c/1b5d8a248c3afa640bcc99fa95abcd1e36f3ee18 git.kernel.org
- https://git.kernel.org/stable/c/88a240d86d3d64521f9194abe185ac71cc74d0bd git.kernel.org
- https://git.kernel.org/stable/c/cfc67aee0c83e7f5d43a1dad3e25c789e9cc1d92 git.kernel.org
- https://git.kernel.org/stable/c/dae9cadf0925f1cbfb71306d60490890df3870a6 git.kernel.org