CVEvulnerability
CVE-2026-74340
8.1 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-15
- Last modified
- 2026-10-16
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.1 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: wcn36xx: fix OOB read from firmware count in PRINT_REG_INFO indication
The firmware-controlled rsp->count field is used as the loop bound for
indexing into the flexible rsp->regs[] array without validation against
the message length. A count exceeding the actual data causes out-of-
bounds reads from the heap-allocated message buffer.
Add a check that count fits within the received message.
References
- https://git.kernel.org/stable/c/0907c06dccae9e3c8d5a68eb9014beec73a36e79 git.kernel.org
- https://git.kernel.org/stable/c/22b0b8572a64362531dd0ed499b75e16282aeb2b git.kernel.org
- https://git.kernel.org/stable/c/23d210877968657bd07e1a517e0b516db20a1d80 git.kernel.org
- https://git.kernel.org/stable/c/3cf92b44c4fb88a5e8de8733a4494c0956606bca git.kernel.org
- https://git.kernel.org/stable/c/64228dfc4247aca178c01e5a37af7d8dcc7a6089 git.kernel.org
- https://git.kernel.org/stable/c/df2187acfca6c6cca372c5d35f42394d9c270b09 git.kernel.org
- https://git.kernel.org/stable/c/f03782f7f41f2afee5076a1ef08ced5649218771 git.kernel.org
- https://git.kernel.org/stable/c/f987efff29a5fe45320ea5991c9d5cb98b676953 git.kernel.org