CVE-2026-53182: fallo de gravedad alta en Linux
wifi: nl80211: reject oversized EMA RNR lists
Publicada el · Actualizada el
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.8epss 0.1%
probabilidad de explotación
0.1%top 98% de las CVE
explotación observada
noninguna fuente lo 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
Productos afectados
Linux · LinuxCVEs relacionadas — Linux
En el mismo producto, de las más peligrosas a las menos.
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Referencias
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