CVE-2025-40240: falha de alta gravidade em Linux
sctp: avoid NULL dereference when chunk data buffer is missing
Publicada em · Atualizada em
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.5epss 0.6%
probabilidade de exploração
0.6%top 53% das CVEs
exploração observada
nãonenhuma fonte reporta
In the Linux kernel, the following vulnerability has been resolved:
sctp: avoid NULL dereference when chunk data buffer is missing
chunk->skb pointer is dereferenced in the if-block where it's supposed
to be NULL only.
chunk->skb can only be NULL if chunk->head_skb is not. Check for frag_list
instead and do it just before replacing chunk->skb. We're sure that
otherwise chunk->skb is non-NULL because of outer if() condition.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Produtos afetados
Linux · LinuxCVEs relacionadas — Linux
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Referências
https://git.kernel.org/stable/c/03e80a4b04ef1fb2c61dd63216ab8d3a5dcb196fhttps://git.kernel.org/stable/c/08165c296597075763130919f2aae59b5822f016https://git.kernel.org/stable/c/441f0647f7673e0e64d4910ef61a5fb8f16bfb82https://git.kernel.org/stable/c/4f6da435fb5d8a21cbf8cae5ca5a2ba0e1012b71https://git.kernel.org/stable/c/61cda2777b07d27459f5cac5a047c3edf9c8a1a9https://git.kernel.org/stable/c/7a832b0f99be19df608cb75c023f8027b1789bd1https://git.kernel.org/stable/c/89b465b54227c245ddc7cc9ed822231af21123efhttps://git.kernel.org/stable/c/cb9055ba30306ede4ad920002233d0659982f1cb