CVE-2025-38095: falha de alta gravidade em Linux
dma-buf: insert memory barrier before updating num_fences
Publicada em · Atualizada em
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.8epss 0.2%
probabilidade de exploração
0.2%top 90% das CVEs
exploração observada
nãonenhuma fonte reporta
In the Linux kernel, the following vulnerability has been resolved:
dma-buf: insert memory barrier before updating num_fences
smp_store_mb() inserts memory barrier after storing operation.
It is different with what the comment is originally aiming so Null
pointer dereference can be happened if memory update is reordered.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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Referências
https://git.kernel.org/stable/c/08680c4dadc6e736c75bc2409d833f03f9003c51https://git.kernel.org/stable/c/3becc659f9cb76b481ad1fb71f54d5c8d6332d3fhttps://git.kernel.org/stable/c/72c7d62583ebce7baeb61acce6057c361f73be4ahttps://git.kernel.org/stable/c/90eb79c4ed98a4e24a62ccf61c199ab0f680fa8fhttps://git.kernel.org/stable/c/c9d2b9a80d06a58f37e0dc8c827075639b443927https://git.kernel.org/stable/c/d0b7f11dd68b593bd970e5735be00e8d89bace30https://git.kernel.org/stable/c/fe1bebd0edb22e3536cbc920ec713331d1367ad4https://lists.debian.org/debian-lts-announce/2025/08/msg00010.htmlhttps://lists.debian.org/debian-lts-announce/2025/10/msg00007.html