dma-buf: insert memory barrier before updating num_fences
3Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackepss 0.2%
probabilidade de exploração
0.2%top 94% 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.
Produtos afetados
Linux · LinuxReferências
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