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CVE-2026-64444

Linux Kernel

Description

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB read in OnAssocRsp() IE loop The IE parsing loop in OnAssocRsp() advances by (pIE->length + 2) each iteration but only guards on i < pkt_len. When a malicious AP sends an AssocResponse whose last IE has only one byte remaining in the frame (the element_id byte lands at pkt_len-1), the loop reads pIE->length from pframe[pkt_len], which is one byte past the allocated receive buffer. Additionally, even when the header bytes are in bounds, pIE->length itself can extend the data window beyond pkt_len, silently passing a truncated IE to the handler functions. Add two guards at the top of the loop body: 1. Break if fewer than sizeof(*pIE) bytes remain (can-t read header). 2. Break if the IE-s declared data extends past pkt_len.

CVSS 8.1EPSS 0.27999999999999997%Risque 0.83
Voir la source
Publication
2026-07-25 10:17:29
Versions concernées
unknown
Type
Noyau
Dernière modification
2026-08-11 15:01:50
Vecteur
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H