PT-2026-52278 · Linux · Linux

Published 2026-06-25 · Updated 2026-06-25 · CVE-2026-53182

NVD

In the Linux kernel, the following vulnerability has been resolved:

wifi: nl80211: reject oversized EMA RNR lists

nl80211 parse rnr elems() stores the parsed element count in a u8-backed cfg80211 rnr elems::cnt field and uses that count to size the flexible array allocation.

Reject nested NL80211 ATTR EMA RNR ELEMS input once the count reaches 255, before incrementing it again. This keeps the parser aligned with the data structure it fills and matches the existing bound check used by nl80211 parse mbssid elems().

Related Identifiers

CVE-2026-53182

Affected Products

Linux

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-53182 · Security Note
• https://git.kernel.org/stable/c/fc0ec2fc02dfe52c5821f36fbccf6a45df43f508 · Note
• https://git.kernel.org/stable/c/265c07c09c837621730d35f02975207a1224bf05 · Note
• https://git.kernel.org/stable/c/30c3fa80f423613efdda3deca4af52ff7d20e4e2 · Note
• https://git.kernel.org/stable/c/4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1 · Note
• https://git.kernel.org/stable/c/ecbf3c45add30a0857414e156bdb9c79906f0ff6 · Note
• https://git.kernel.org/stable/c/688fcac7054abc680c0eef753f2bb772cfaf8cf7 · Note