Vulnerability in Linux

CVE-2025-38504

In the Linux kernel, the following vulnerability has been resolved: io_uring/zcrx: fix pp destruction warnings With multiple page pools and in some other cases we can have allocated niovs on page pool destruction. Remove a misplaced warning checking that all niovs are returned to zcrx on io_pp_zc_destroy(). It was reported before but apparently got lost.

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: 0.001 (2.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.2% 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-2025-38504: held from 0.001 to 0.001.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

  • Linux — versions 34a3e60821ab9f335a58d43a88cccdbefdebdec3, 6.15, 0
  • Linux Kernel — versions 6.16

References

Frequently asked questions

What is CVE-2025-38504?
CVE-2025-38504 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-08-16.
How severe is CVE-2025-38504?
Medium severity. CVSS v3 base score is 5.5 out of 10.