CVE-2026-93802
wifi: rsi: validate beacon length before fixed buffer copy
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: validate beacon length before fixed buffer copy rsi_prepare_beacon() copies the mac80211 beacon frame after FRAME_DESC_SZ into a management skb whose usable tailroom may be smaller than MAX_MGMT_PKT_SIZE after alignment. Validate the beacon length against the actual tailroom before the copy and skb_put(). Leave ownership of the management skb with the caller on error, matching the existing rsi_send_beacon() cleanup path.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 24, 2026 |
| Last Updated | Oct 3, 2026 |
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Affected Versions
Linux / Linux
d26a9559403c7c3ec3b430f5825bc22c3d40abdb < 795ba65f46fe44061f1195951c122cc8ec685d44 d26a9559403c7c3ec3b430f5825bc22c3d40abdb < 66a964432b2758a4cf69962366e37581d6e70632 d26a9559403c7c3ec3b430f5825bc22c3d40abdb < 7f99742c3c2801f8033d8b7a0a58254d7f24fb1e d26a9559403c7c3ec3b430f5825bc22c3d40abdb < f08d7f3c916335a0e539f1c45c130615967fac47 d26a9559403c7c3ec3b430f5825bc22c3d40abdb < 87710ad633ce4588aec88611d0d0745eb33a6991 d26a9559403c7c3ec3b430f5825bc22c3d40abdb < 266f195d5a14eec6c482fd09fbc924584c3371a7 d26a9559403c7c3ec3b430f5825bc22c3d40abdb < 8ecdeb8b8a33b22c597299043c0dcfce50beb9ea
Linux / Linux
4.14
References
git.kernel.org: https://git.kernel.org/stable/c/795ba65f46fe44061f1195951c122cc8ec685d44 git.kernel.org: https://git.kernel.org/stable/c/66a964432b2758a4cf69962366e37581d6e70632 git.kernel.org: https://git.kernel.org/stable/c/7f99742c3c2801f8033d8b7a0a58254d7f24fb1e git.kernel.org: https://git.kernel.org/stable/c/f08d7f3c916335a0e539f1c45c130615967fac47 git.kernel.org: https://git.kernel.org/stable/c/87710ad633ce4588aec88611d0d0745eb33a6991 git.kernel.org: https://git.kernel.org/stable/c/266f195d5a14eec6c482fd09fbc924584c3371a7 git.kernel.org: https://git.kernel.org/stable/c/8ecdeb8b8a33b22c597299043c0dcfce50beb9ea