CVE-2026-93802

CVE-2026-93802

published September 24, 2026

CVSS
—
EPSS
0%
Percentile
6.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00173 · 6.3th percentile
Published
2026-09-24T21:17Z
References (7)
https://git.kernel.org/stable/c/266f195d5a14eec6c482fd09fbc924584c3371a7 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/66a964432b2758a4cf69962366e37581d6e70632 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/795ba65f46fe44061f1195951c122cc8ec685d44 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7f99742c3c2801f8033d8b7a0a58254d7f24fb1e · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/87710ad633ce4588aec88611d0d0745eb33a6991 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8ecdeb8b8a33b22c597299043c0dcfce50beb9ea · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f08d7f3c916335a0e539f1c45c130615967fac47 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 26 SEP 03:27Z
    EPSS moved — → 0%
    epss
  • 24 SEP 16:02Z
    wifi: rsi: validate beacon length before fixed buffer copy
    cvelistv5