PT-2025-35997 · Linux+9 · Linux Kernel+9

Lei Lu

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Published

2025-06-04

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Updated

2026-04-20

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CVE-2025-38724

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description The nfsd4 setclientid confirm() function did not check the return value from get client locked(). A SETCLIENTID CONFIRM operation could race with a confirmed client expiring, failing to obtain a reference, and potentially leading to a use-after-free (UAF) condition. The issue was addressed by obtaining a reference early in the case of an existing confirmed client and handling failures appropriately.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Unchecked Return Value

Use After Free

Weakness Enumeration

Related Identifiers

ALSA-2025:22387
ALSA-2025:22388
ALSA-2025:22395
ALSA-2025:22405
AZL-66854
AZL-73839
BDU:2025-15749
CESA-2025_22387
CESA-2025_22388
CVE-2025-38724
DLA-4327-1
DLA-4328-1
DSA-6009-1
ECHO-177E-886C-0CA9
INFSA-2025_22387
INFSA-2025_22388
INFSA-2025_22405
MGASA-2025-0234
MGASA-2025-0235
OESA-2025-2310
OESA-2025-2311
OESA-2025-2315
OESA-2025-2406
OESA-2025-2554
OESA-2025-2555
OPENSUSE-SU-2025:20081-1
RHSA-2025:22392
RHSA-2025:22405
RHSA-2025:22571
RHSA-2026:0489
RHSA-2026:0532
RHSA-2026:0534
RHSA-2026:0535
RHSA-2026:0537
RHSA-2026:0576
SUSE-SU-2025:03600-1
SUSE-SU-2025:03634-1
SUSE-SU-2025:20851-1
SUSE-SU-2025:20861-1
SUSE-SU-2025:20870-1
SUSE-SU-2025:20898-1
SUSE-SU-2025:21074-1
SUSE-SU-2025:21139-1
SUSE-SU-2025:21179-1
SUSE-SU-2025:3751-1
SUSE-SU-2025:4057-1
SUSE-SU-2025:4132-1
SUSE-SU-2025:4141-1
SUSE-SU-2025:4189-1
USN-7909-1
USN-7909-2
USN-7909-3
USN-7909-4
USN-7909-5
USN-7910-1
USN-7910-2
USN-7933-1
USN-7938-1
USN-8028-1
USN-8028-2
USN-8028-3
USN-8028-4
USN-8028-5
USN-8028-6
USN-8028-7
USN-8028-8
USN-8031-1
USN-8031-2
USN-8031-3
USN-8052-1
USN-8052-2
USN-8074-1
USN-8074-2
USN-8126-1

Affected Products

Almalinux
Centos
Debian
Linuxmint
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu