CVE-2026-74341
wifi: wcn36xx: fix heap overflow from oversized firmware HAL 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 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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
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Affected Versions
Linux / Linux
8e84c25821698bdef73c0329fb2022a4673b7adc < dae9cadf0925f1cbfb71306d60490890df3870a6 8e84c25821698bdef73c0329fb2022a4673b7adc < cfc67aee0c83e7f5d43a1dad3e25c789e9cc1d92 8e84c25821698bdef73c0329fb2022a4673b7adc < 15545ee71301e82d26d9a31b407ed0019eb62a60 8e84c25821698bdef73c0329fb2022a4673b7adc < 1b5d8a248c3afa640bcc99fa95abcd1e36f3ee18 8e84c25821698bdef73c0329fb2022a4673b7adc < 18813b90032bfaafb225906a4d2b51be4dfc02c3 8e84c25821698bdef73c0329fb2022a4673b7adc < 88a240d86d3d64521f9194abe185ac71cc74d0bd
Linux / Linux
3.13
References
git.kernel.org: https://git.kernel.org/stable/c/dae9cadf0925f1cbfb71306d60490890df3870a6 git.kernel.org: https://git.kernel.org/stable/c/cfc67aee0c83e7f5d43a1dad3e25c789e9cc1d92 git.kernel.org: https://git.kernel.org/stable/c/15545ee71301e82d26d9a31b407ed0019eb62a60 git.kernel.org: https://git.kernel.org/stable/c/1b5d8a248c3afa640bcc99fa95abcd1e36f3ee18 git.kernel.org: https://git.kernel.org/stable/c/18813b90032bfaafb225906a4d2b51be4dfc02c3 git.kernel.org: https://git.kernel.org/stable/c/88a240d86d3d64521f9194abe185ac71cc74d0bd