CVE-2026-93802

CVE-2026-93802: vulnerability in Linux

wifi: rsi: validate beacon length before fixed buffer copy

Published · Updated

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 0.2%
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · Linux
Related CVEs — Linux

In the same product, most dangerous first.

CVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 3.4%KEVCVE-2024-53104HIGHmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_formatEPSS 3.4%KEVCVE-2025-39682CRITICALtls: fix handling of zero-length records on the rx_listEPSS 2.9%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEVCVE-2024-53150HIGHALSA: usb-audio: Fix out of bounds reads when finding clock sourcesEPSS 1.4%KEV
References
https://git.kernel.org/stable/c/266f195d5a14eec6c482fd09fbc924584c3371a7https://git.kernel.org/stable/c/66a964432b2758a4cf69962366e37581d6e70632https://git.kernel.org/stable/c/795ba65f46fe44061f1195951c122cc8ec685d44https://git.kernel.org/stable/c/7f99742c3c2801f8033d8b7a0a58254d7f24fb1ehttps://git.kernel.org/stable/c/87710ad633ce4588aec88611d0d0745eb33a6991https://git.kernel.org/stable/c/8ecdeb8b8a33b22c597299043c0dcfce50beb9eahttps://git.kernel.org/stable/c/f08d7f3c916335a0e539f1c45c130615967fac47