CVE-2026-90016

CVE CVE-2026-90016EUVD EUVD-2026-80624Published 2026-09-16T10:33:22.000ZLast changed 2026-09-16T14:41:34.000ZCVSS 7.1

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB read in rtw_restruct_wmm_ie() rtw_restruct_wmm_ie() scans in_ie for a WMM IE with: while (i < in_len) { ... if (i + 5 < in_len && in_ie[i] == 0xDD && ...) { ... break; } i += (in_ie[i + 1] + 2); /* to the next IE element */ } When the "i + 5 < in_len" match check fails simply because i is within 5 bytes of the end of the buffer (i.e. no WMM IE was found near the tail of in_ie), execution falls through to "i += (in_ie[i + 1] + 2)", which reads in_ie[i + 1]. If i == in_len - 1 at that point, this is a 1-byte out-of-bounds read of an attacker-influenced IE buffer built from association/scan data. Commit a75281626fc8f ("staging: rtl8723bs: fix potential out-of-bounds read in rtw_restruct_wmm_ie") added the "i + 5 < in_len" guard to the match condition itself, but did not add an equivalent guard before the fallthrough advance, so the same class of OOB read remained reachable through the non-matching path. Add an explicit bounds check before advancing to the next IE.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

• Linux — Linux 4.12; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <fd19b8895f8a91087e8a62f1e27b128025dabb95; patch: 7.3-rc2; patch: 7.2.5; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <28a289beaf226b30b1e6e7d7b1a2946fe2d6e852; patch: 6.18.52; patch: 0; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <4420cc71841b50e31a7868ef7acb011c0e08d294

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

• Linux — Linux

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.