CVE-2026-74340
8.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 43efa3c0f241e04862be8e6a68ff765d36cde1ba < 22b0b8572a64362531dd0ed499b75e16282aeb2b | affected |
| Linux | Linux | 43efa3c0f241e04862be8e6a68ff765d36cde1ba < 3cf92b44c4fb88a5e8de8733a4494c0956606bca | affected |
| Linux | Linux | 43efa3c0f241e04862be8e6a68ff765d36cde1ba < 0907c06dccae9e3c8d5a68eb9014beec73a36e79 | affected |
| Linux | Linux | 43efa3c0f241e04862be8e6a68ff765d36cde1ba < 64228dfc4247aca178c01e5a37af7d8dcc7a6089 | affected |
| Linux | Linux | 43efa3c0f241e04862be8e6a68ff765d36cde1ba < 23d210877968657bd07e1a517e0b516db20a1d80 | affected |
| Linux | Linux | 43efa3c0f241e04862be8e6a68ff765d36cde1ba < f03782f7f41f2afee5076a1ef08ced5649218771 | affected |
| Linux | Linux | 43efa3c0f241e04862be8e6a68ff765d36cde1ba < f987efff29a5fe45320ea5991c9d5cb98b676953 | affected |
| Linux | Linux | 43efa3c0f241e04862be8e6a68ff765d36cde1ba < df2187acfca6c6cca372c5d35f42394d9c270b09 | affected |
| Linux | Linux | 4.11 | affected |
| Linux | Linux | 0 < 4.11 | unaffected |
| Linux | Linux | 5.10.261 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.212 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.178 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.145 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.97 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.40 <= 6.18.* | unaffected |
| Linux | Linux | 7.1.5 <= 7.1.* | unaffected |
| Linux | Linux | 7.2 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/22b0b8572a64362531dd0ed499b75e16282aeb2b
- https://git.kernel.org/stable/c/3cf92b44c4fb88a5e8de8733a4494c0956606bca
- https://git.kernel.org/stable/c/0907c06dccae9e3c8d5a68eb9014beec73a36e79
- https://git.kernel.org/stable/c/64228dfc4247aca178c01e5a37af7d8dcc7a6089
- https://git.kernel.org/stable/c/23d210877968657bd07e1a517e0b516db20a1d80
- https://git.kernel.org/stable/c/f03782f7f41f2afee5076a1ef08ced5649218771
- https://git.kernel.org/stable/c/f987efff29a5fe45320ea5991c9d5cb98b676953
- https://git.kernel.org/stable/c/df2187acfca6c6cca372c5d35f42394d9c270b09
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