4.7

CVE-2025-38515

drm/sched: Increment job count before swapping tail spsc queue

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.16 < 5.4.296
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.240
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.189
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.146
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.99
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.39
Linux ≫ Linux Kernel Version >= 6.13 < 6.15.7
Linux ≫ Linux Kernel Version6.16 Updaterc1
Linux ≫ Linux Kernel Version6.16 Updaterc2
Linux ≫ Linux Kernel Version6.16 Updaterc3
Linux ≫ Linux Kernel Version6.16 Updaterc4
Debian ≫ Debian Linux Version11.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.14% 0.037
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 4.7 1 3.6
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/549a9c78c3ea6807d0dc4162a4f5ba59f217d5a0
Patch
https://git.kernel.org/stable/c/e62f51d0ec8a9baf324caf9a564f8e318d36a551
Patch
https://git.kernel.org/stable/c/ef841f8e4e1ff67817ca899bedc5ebb00847c0a7
Patch
https://git.kernel.org/stable/c/f9a4f28a4fc4ee453a92a9abbe36e26224d17749
Patch
https://git.kernel.org/stable/c/c64f5310530baf75328292f9b9f3f2961d185183
Patch
https://git.kernel.org/stable/c/e2d6547dc8b9b332f9bc00875197287a6a4db65a
Patch
https://git.kernel.org/stable/c/ef58a95457466849fa7b31fd3953801a5af0f58b
Patch
https://git.kernel.org/stable/c/8af39ec5cf2be522c8eb43a3d8005ed59e4daaee
Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
Third Party Advisory
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https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
Third Party Advisory
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