CVE-2025-38515

MEDIUM EPSS 3.8%
Published Aug 16, 202510mo ago · Modified Jun 17, 20261w ago
4.7 CVSS 3.1
Medium
Find Similar
Published Aug 16, 2025 10mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: drm/sched: Increment job count before swapping tail spsc queue A small race exists between spsc_queue_push and the run-job worker, in which spsc_queue_push may return not-first while the run-job worker has already idled due to the job count being zero. If this race occurs, job scheduling stops, leading to hangs while waiting on the job’s DMA fences. Seal this race by incrementing the job count before appending to the SPSC queue. This race was observed on a drm-tip 6.16-rc1 build with the Xe driver in an SVM test case.

CVSS Details

Base Score
4.7
Exploitability
1.0
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
3.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel*≥4.16  –  <5.4.296
linuxlinux_kernel*≥5.5  –  <5.10.240
linuxlinux_kernel*≥5.11  –  <5.15.189
linuxlinux_kernel*≥5.16  –  <6.1.146
linuxlinux_kernel*≥6.2  –  <6.6.99
linuxlinux_kernel*≥6.7  –  <6.12.39
linuxlinux_kernel*≥6.13  –  <6.15.7
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
debiandebian_linux11.0any

References 10

  • git.kernel.org https://git.kernel.org/stable/c/549a9c78c3ea6807d0dc4162a4f5ba59f217d5a0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8af39ec5cf2be522c8eb43a3d8005ed59e4daaee
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c64f5310530baf75328292f9b9f3f2961d185183
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e2d6547dc8b9b332f9bc00875197287a6a4db65a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e62f51d0ec8a9baf324caf9a564f8e318d36a551
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ef58a95457466849fa7b31fd3953801a5af0f58b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ef841f8e4e1ff67817ca899bedc5ebb00847c0a7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f9a4f28a4fc4ee453a92a9abbe36e26224d17749
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
    Mailing ListThird Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
    Mailing ListThird Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/549a9c78c3ea6807d0dc4162a4f5ba59f217d5a0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8af39ec5cf2be522c8eb43a3d8005ed59e4daaee
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c64f5310530baf75328292f9b9f3f2961d185183
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e2d6547dc8b9b332f9bc00875197287a6a4db65a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e62f51d0ec8a9baf324caf9a564f8e318d36a551
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ef58a95457466849fa7b31fd3953801a5af0f58b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ef841f8e4e1ff67817ca899bedc5ebb00847c0a7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f9a4f28a4fc4ee453a92a9abbe36e26224d17749
    Patch