CVE-2026-52922: fallo de gravedad alta en Linux
batman-adv: dat: handle forward allocation error
Publicada el · Actualizada el
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.5epss 0.7%
probabilidad de explotación
0.7%top 48% de las CVE
explotación observada
noninguna fuente lo reporta
In the Linux kernel, the following vulnerability has been resolved:
batman-adv: dat: handle forward allocation error
batadv_dat_forward_data() calls pskb_copy_for_clone() to duplicate an skb
for each DHT candidate, but does not check the return value before passing
it to batadv_send_skb_prepare_unicast_4addr(). That function dereferences
the skb unconditionally, so a failed allocation triggers a NULL pointer
dereference.
Skip forwarding to the current DHT candidate on allocation failure.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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/2d8826a2d3657cea66fb0370f9e521575a673871https://git.kernel.org/stable/c/2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8efhttps://git.kernel.org/stable/c/4d420d9ee70a220a2cd95aa0dd2e15acad66a505https://git.kernel.org/stable/c/866ac1d57040ed0b44ca732e3c66b3aa6b93011chttps://git.kernel.org/stable/c/9bcebaedfb8479cb4affb23c7a0d000ca9a20e73https://git.kernel.org/stable/c/9cceea8eeba710def2a5707ee00f00c74a9a1cachttps://git.kernel.org/stable/c/ce0c381199402a2c58f4599f4f6ed100d872d0dahttps://git.kernel.org/stable/c/cf48e75fc4fe0d5cc7721c82d454221d01367b93