CVE-2025-38515
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 4.7 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Record status
- Analyzed
Affected
- Linux Kernel < 5.4.296
- Linux Kernel < 5.10.240
- Linux Kernel < 5.15.189
- Linux Kernel < 6.1.146
- Linux Kernel < 6.6.99
- Linux Kernel < 6.12.39
- Linux Kernel < 6.15.7
- Linux Kernel 6.16
Attack profile CVSS 3.1 · 4.7
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-38515.md and follow it. Check whether this project is affected by CVE-2025-38515. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/549a9c78c3ea6807d0dc4162a4f5ba59f217d5a0
- https://git.kernel.org/stable/c/8af39ec5cf2be522c8eb43a3d8005ed59e4daaee
- https://git.kernel.org/stable/c/c64f5310530baf75328292f9b9f3f2961d185183
- https://git.kernel.org/stable/c/e2d6547dc8b9b332f9bc00875197287a6a4db65a
- https://git.kernel.org/stable/c/e62f51d0ec8a9baf324caf9a564f8e318d36a551
- https://git.kernel.org/stable/c/ef58a95457466849fa7b31fd3953801a5af0f58b
- https://git.kernel.org/stable/c/ef841f8e4e1ff67817ca899bedc5ebb00847c0a7
- https://git.kernel.org/stable/c/f9a4f28a4fc4ee453a92a9abbe36e26224d17749
References
- https://git.kernel.org/stable/c/549a9c78c3ea6807d0dc4162a4f5ba59f217d5a0
- https://git.kernel.org/stable/c/8af39ec5cf2be522c8eb43a3d8005ed59e4daaee
- https://git.kernel.org/stable/c/c64f5310530baf75328292f9b9f3f2961d185183
- https://git.kernel.org/stable/c/e2d6547dc8b9b332f9bc00875197287a6a4db65a
- https://git.kernel.org/stable/c/e62f51d0ec8a9baf324caf9a564f8e318d36a551
- https://git.kernel.org/stable/c/ef58a95457466849fa7b31fd3953801a5af0f58b
- https://git.kernel.org/stable/c/ef841f8e4e1ff67817ca899bedc5ebb00847c0a7
- https://git.kernel.org/stable/c/f9a4f28a4fc4ee453a92a9abbe36e26224d17749
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html