dma-buf: insert memory barrier before updating num_fences
3Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackepss 0.2%
probabilidad de explotación
0.2%top 94% de las CVE
explotación observada
noninguna fuente lo 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.
Productos afectados
Linux · LinuxReferencias
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