CVE-2025-38515: debian debian_linux
Vulnerability summary
CVE-2025-38515 is a medium (CVSS 4.7) vulnerability in debian debian_linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.7% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 50 · Related 48Timeline
- 16-08-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
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 metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.16%
Chance of exploitation in the next 30 days
Percentile
5%
Versus all other CVEs
30-day change
+0.01 pp
From 0.15% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu143 products
- linuxAll versions (No fix recorded) | < 5.15.0-156.166 | < 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1092.99 | < 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.147-1 | < 6.12.41-1 | < 6.16.3-1
- debian_linuxEOL11.0
Linux2 products
- linux≥ 27105db6c63a571b91d01e749d026105a1e63bcf, < 549a9c78c3ea6807d0dc4162a4f5ba59f217d5a0 | ≥ 27105db6c63a571b91d01e749d026105a1e63bcf, < e62f51d0ec8a9baf324caf9a564f8e318d36a551 | ≥ 27105db6c63a571b91d01e749d026105a1e63bcf, < ef841f8e4e1ff67817ca899bedc5ebb00847c0a7 | ≥ 27105db6c63a571b91d01e749d026105a1e63bcf, < f9a4f28a4fc4ee453a92a9abbe36e26224d17749 | ≥ 27105db6c63a571b91d01e749d026105a1e63bcf, < c64f5310530baf75328292f9b9f3f2961d185183 | ≥ 27105db6c63a571b91d01e749d026105a1e63bcf, < e2d6547dc8b9b332f9bc00875197287a6a4db65a | ≥ 27105db6c63a571b91d01e749d026105a1e63bcf, < ef58a95457466849fa7b31fd3953801a5af0f58b | ≥ 27105db6c63a571b91d01e749d026105a1e63bcf, < 8af39ec5cf2be522c8eb43a3d8005ed59e4daaee | 4.16
- linux_kernel≥ 4.16, < 5.4.296 | ≥ 5.5, < 5.10.240 | ≥ 5.11, < 5.15.189 | ≥ 5.16, < 6.1.146 | ≥ 6.2, < 6.6.99 | ≥ 6.7, < 6.12.39 | ≥ 6.13, < 6.15.7 | 6.16:rc1 | 6.16:rc2 | 6.16:rc3 | 6.16:rc4
3 vendors · 147 products
