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.

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.

EPSS: 0.001 (2.8th percentile) — read the EPSS interpretation.

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.

Affected products

Linux — versions 34a3e60821ab9f335a58d43a88cccdbefdebdec3, 6.15, 0
Linux Linux_kernel — versions 6.16

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

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.