vulnerability

Red Hat: CVE-2025-38095: kernel: dma-buf: insert memory barrier before updating num_fences

Severity
7
CVSS
(AV:L/AC:M/Au:S/C:C/I:C/A:C)
Published
Jul 3, 2025
Added
Jul 9, 2025
Modified
Jul 10, 2025

Description

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.

Solution

no-fix-redhat-rpm-package
Title
NEW

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