CVE-2026-93802
N/A
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 87710ad633ce4588aec88611d0d0745eb33a6991 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 266f195d5a14eec6c482fd09fbc924584c3371a7 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8ecdeb8b8a33b22c597299043c0dcfce50beb9ea | affected |
| Linux | Linux | 0 < 6.12.111 | affected |
| Linux | Linux | 0 < 6.18.53 | affected |
| Linux | Linux | 6.12.111 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.53 <= 6.18.* | unaffected |
| Linux | Linux | 7.2 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/87710ad633ce4588aec88611d0d0745eb33a6991
- https://git.kernel.org/stable/c/266f195d5a14eec6c482fd09fbc924584c3371a7
- https://git.kernel.org/stable/c/8ecdeb8b8a33b22c597299043c0dcfce50beb9ea
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