CVE-2025-38515 (GCVE-0-2025-38515)

Vulnerability from cvelistv5 – Published: 2025-08-16 10:55 – Updated: 2025-11-03 17:39
VLAI?
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 27105db6c63a571b91d01e749d026105a1e63bcf , < 549a9c78c3ea6807d0dc4162a4f5ba59f217d5a0 (git)
Affected: 27105db6c63a571b91d01e749d026105a1e63bcf , < e62f51d0ec8a9baf324caf9a564f8e318d36a551 (git)
Affected: 27105db6c63a571b91d01e749d026105a1e63bcf , < ef841f8e4e1ff67817ca899bedc5ebb00847c0a7 (git)
Affected: 27105db6c63a571b91d01e749d026105a1e63bcf , < f9a4f28a4fc4ee453a92a9abbe36e26224d17749 (git)
Affected: 27105db6c63a571b91d01e749d026105a1e63bcf , < c64f5310530baf75328292f9b9f3f2961d185183 (git)
Affected: 27105db6c63a571b91d01e749d026105a1e63bcf , < e2d6547dc8b9b332f9bc00875197287a6a4db65a (git)
Affected: 27105db6c63a571b91d01e749d026105a1e63bcf , < ef58a95457466849fa7b31fd3953801a5af0f58b (git)
Affected: 27105db6c63a571b91d01e749d026105a1e63bcf , < 8af39ec5cf2be522c8eb43a3d8005ed59e4daaee (git)
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    Linux Linux Affected: 4.16
Unaffected: 0 , < 4.16 (semver)
Unaffected: 5.4.296 , ≤ 5.4.* (semver)
Unaffected: 5.10.240 , ≤ 5.10.* (semver)
Unaffected: 5.15.189 , ≤ 5.15.* (semver)
Unaffected: 6.1.146 , ≤ 6.1.* (semver)
Unaffected: 6.6.99 , ≤ 6.6.* (semver)
Unaffected: 6.12.39 , ≤ 6.12.* (semver)
Unaffected: 6.15.7 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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