CVE-2026-98830
wifi: wfx: validate MIB read length before copying to caller
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: wifi: wfx: validate MIB read length before copying to caller wfx_hif_read_mib() copies reply->length bytes from the firmware response into the caller-provided buffer without checking that reply->length does not exceed val_len. A firmware response with a length field larger than expected overruns the caller buffer and reads past the end of the reply allocation. Replace the dead -ENOMEM check with an active validation that reply->length fits within val_len before the memcpy.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 18, 2026 |
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Affected Versions
Linux / Linux
f95a29d40782f4f0052a692a822de3ba044b19ff < 02886c18a340da59df57365f29009e1258bfe333 f95a29d40782f4f0052a692a822de3ba044b19ff < 71d140099165de03128c00dd129f1eab21c6a3c4 f95a29d40782f4f0052a692a822de3ba044b19ff < 7acb36fd60a3e7b858f12e69a919c3609b281408 f95a29d40782f4f0052a692a822de3ba044b19ff < ce67ebe9d8629776ce38e6995ae72fb903c828db
Linux / Linux
5.5
References
git.kernel.org: https://git.kernel.org/stable/c/02886c18a340da59df57365f29009e1258bfe333 git.kernel.org: https://git.kernel.org/stable/c/71d140099165de03128c00dd129f1eab21c6a3c4 git.kernel.org: https://git.kernel.org/stable/c/7acb36fd60a3e7b858f12e69a919c3609b281408 git.kernel.org: https://git.kernel.org/stable/c/ce67ebe9d8629776ce38e6995ae72fb903c828db