CVE-2026-53182: falha de alta gravidade em Linux
wifi: nl80211: reject oversized EMA RNR lists
Publicada em · Atualizada em
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.8epss 0.1%
probabilidade de exploração
0.1%top 98% das CVEs
exploração observada
nãonenhuma fonte reporta
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().
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
Linux · LinuxCVEs relacionadas — Linux
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Referências
https://git.kernel.org/stable/c/265c07c09c837621730d35f02975207a1224bf05https://git.kernel.org/stable/c/30c3fa80f423613efdda3deca4af52ff7d20e4e2https://git.kernel.org/stable/c/4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1https://git.kernel.org/stable/c/688fcac7054abc680c0eef753f2bb772cfaf8cf7https://git.kernel.org/stable/c/ecbf3c45add30a0857414e156bdb9c79906f0ff6https://git.kernel.org/stable/c/fc0ec2fc02dfe52c5821f36fbccf6a45df43f508