Vulnerability in Linux

CVE-2025-38151

In the Linux kernel, the following vulnerability has been resolved: RDMA/cma: Fix hang when cma_netevent_callback fails to queue_work The cited commit fixed a crash when cma_netevent_callback was called for a cma_id while work on that id from a previous call had not yet started. The work item was re-initialized in the second call, which corrupted the work item currently in the work queue. However, it left a problem when queue_work fails (because the item is still pending in the work queue from a previous call). In this case, cma_id_put (which is called in the work handler) is therefore not called. This results in a userspace process hang (zombie process). Fix this by calling cma_id_put() if queue_work fails.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (5.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-38151: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

  • Linux — versions 6.6.88, c2b169fc7a12665d8a675c1ff14bca1b9c63fb9a, 51003b2c872c63d28bcf5fbcc52cf7b05615f7b7
  • Linux Kernel — versions 6.15
  • Debian Linux — versions 11.0

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-38151?
CVE-2025-38151 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-07-03.
How severe is CVE-2025-38151?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2025-38151 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.