CVEvulnerability
CVE-2026-93802
- Status
- Received
- Published
- 2026-09-24
- Last modified
- 2026-10-03
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
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.
References
- https://git.kernel.org/stable/c/266f195d5a14eec6c482fd09fbc924584c3371a7 git.kernel.org
- https://git.kernel.org/stable/c/66a964432b2758a4cf69962366e37581d6e70632 git.kernel.org
- https://git.kernel.org/stable/c/795ba65f46fe44061f1195951c122cc8ec685d44 git.kernel.org
- https://git.kernel.org/stable/c/7f99742c3c2801f8033d8b7a0a58254d7f24fb1e git.kernel.org
- https://git.kernel.org/stable/c/87710ad633ce4588aec88611d0d0745eb33a6991 git.kernel.org
- https://git.kernel.org/stable/c/8ecdeb8b8a33b22c597299043c0dcfce50beb9ea git.kernel.org
- https://git.kernel.org/stable/c/f08d7f3c916335a0e539f1c45c130615967fac47 git.kernel.org