CVE-2026-93802
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedSep 24, 2026
First seenSep 24, 2026
How to fix
Update
- Linux Linux795ba65f46fe44061f1195951c122cc8ec685d44, 66a964432b2758a4cf69962366e37581d6e70632, 7f99742c3c2801f8033d8b7a0a58254d7f24fb1e, f08d7f3c916335a0e539f1c45c130615967fac47, 87710ad633ce4588aec88611d0d0745eb33a6991, 266f195d5a14eec6c482fd09fbc924584c3371a7, 8ecdeb8b8a33b22c597299043c0dcfce50beb9ea or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | d26a9559403c7c3ec3b430f5825bc22c3d40abdb ≤ v < 795ba65f46fe44061f1195951c122cc8ec685d44, d26a9559403c7c3ec3b430f5825bc22c3d40abdb ≤ v < 66a964432b2758a4cf69962366e37581d6e70632, d26a9559403c7c3ec3b430f5825bc22c3d40abdb ≤ v < 7f99742c3c2801f8033d8b7a0a58254d7f24fb1e, d26a9559403c7c3ec3b430f5825bc22c3d40abdb ≤ v < f08d7f3c916335a0e539f1c45c130615967fac47, d26a9559403c7c3ec3b430f5825bc22c3d40abdb ≤ v < 87710ad633ce4588aec88611d0d0745eb33a6991, d26a9559403c7c3ec3b430f5825bc22c3d40abdb ≤ v < 266f195d5a14eec6c482fd09fbc924584c3371a7, d26a9559403c7c3ec3b430f5825bc22c3d40abdb ≤ v < 8ecdeb8b8a33b22c597299043c0dcfce50beb9ea, 4.14 | 795ba65f46fe44061f1195951c122cc8ec685d44, 66a964432b2758a4cf69962366e37581d6e70632, 7f99742c3c2801f8033d8b7a0a58254d7f24fb1e, f08d7f3c916335a0e539f1c45c130615967fac47, 87710ad633ce4588aec88611d0d0745eb33a6991, 266f195d5a14eec6c482fd09fbc924584c3371a7, 8ecdeb8b8a33b22c597299043c0dcfce50beb9ea |
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