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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-93802

wifi: rsi: validate beacon length before fixed buffer copy

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • d26a9559403c7c3ec3b430f5825bc22c3d40abdb to < 795ba65f46fe44061f1195951c122cc8ec685d44affected
  • d26a9559403c7c3ec3b430f5825bc22c3d40abdb to < 66a964432b2758a4cf69962366e37581d6e70632affected
  • d26a9559403c7c3ec3b430f5825bc22c3d40abdb to < 7f99742c3c2801f8033d8b7a0a58254d7f24fb1eaffected
  • d26a9559403c7c3ec3b430f5825bc22c3d40abdb to < f08d7f3c916335a0e539f1c45c130615967fac47affected
  • d26a9559403c7c3ec3b430f5825bc22c3d40abdb to < 87710ad633ce4588aec88611d0d0745eb33a6991affected
  • d26a9559403c7c3ec3b430f5825bc22c3d40abdb to < 266f195d5a14eec6c482fd09fbc924584c3371a7affected
  • d26a9559403c7c3ec3b430f5825bc22c3d40abdb to < 8ecdeb8b8a33b22c597299043c0dcfce50beb9eaaffected

Linux Linux

Default version status: affected

  • 4.14affected
  • 0 to < 4.14unaffected
  • 5.10.271 to ≤ 5.10.*unaffected
  • 5.15.222 to ≤ 5.15.*unaffected
  • 6.1.189 to ≤ 6.1.*unaffected
  • 6.6.158 to ≤ 6.6.*unaffected
  • 6.12.111 to ≤ 6.12.*unaffected
  • 6.18.53 to ≤ 6.18.*unaffected
  • 7.2 to ≤ *unaffected

References