CVE-2025-38095
HIGH severity · CVSS 7.8 · CWE-476
7.8CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/08680c4dadc6e736c75bc2409d833f03f9003c51 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/08680c4dadc6e736c75bc2409d833f03f9003c51Patch
- https://git.kernel.org/stable/c/3becc659f9cb76b481ad1fb71f54d5c8d6332d3fPatch
- https://git.kernel.org/stable/c/72c7d62583ebce7baeb61acce6057c361f73be4aPatch
- https://git.kernel.org/stable/c/90eb79c4ed98a4e24a62ccf61c199ab0f680fa8fPatch
- https://git.kernel.org/stable/c/c9d2b9a80d06a58f37e0dc8c827075639b443927Patch
- https://git.kernel.org/stable/c/d0b7f11dd68b593bd970e5735be00e8d89bace30Patch
- https://git.kernel.org/stable/c/fe1bebd0edb22e3536cbc920ec713331d1367ad4Patch
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.htmlAdvisory