CVE-2025-38724

critical · 9.8

In the Linux kernel, the following vulnerability has been resolved: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm() Lei Lu recently reported that nfsd4_setclientid_confirm() did not check the return value from get_client_locked(). a SETCLIENTID_CONFIRM could race with a confirmed client expiring and fail to get a reference. That could later lead to a UAF. Fix this by getting a reference early in the case where there is an extant confirmed client. If that fails then treat it as if there were no confirmed client found at all. In the case where the unconfirmed client is expiring, just fail and return the result from get_client_locked().

9.8

CVSS

0.4%

EPSS (exploit prob.)

32nd

EPSS percentile

2025-09-04

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-416

Affected products

Vendor	Product	Affected versions
linux	linux_kernel	>= 3.17, < 5.4.297
linux	linux_kernel	>= 5.5, < 5.10.241
linux	linux_kernel	>= 5.11, < 5.15.190
linux	linux_kernel	>= 5.16, < 6.1.149
linux	linux_kernel	>= 6.2, < 6.6.103
linux	linux_kernel	>= 6.7, < 6.12.43
linux	linux_kernel	>= 6.13, < 6.15.11
linux	linux_kernel	>= 6.16, < 6.16.2
debian	debian_linux	11.0

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-38724