nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm() (Linux Linux)

CVE-2025-38724
CRITICAL 9.8

At a glance

Source
NVD
EPSS
EPSS 0.39 % · percentile 33 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

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().

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected d20c11d86d8f821a64eac7d6c8f296f06d935f4f < 3f252a73e81aa01660cb426735eab932e6182e8d ; affected d20c11d86d8f821a64eac7d6c8f296f06d935f4f < d35ac850410966010e92f401f4e21868a9ea4d8b ; affected d20c11d86d8f821a64eac7d6c8f296f06d935f4f < f3aac6cf390d8b80e1d82975faf4ac61175519c0 ; affected d20c11d86d8f821a64eac7d6c8f296f06d935f4f < 22f45cedf281e6171817c8a3432c44d788c550e1 ; affected d20c11d86d8f821a64eac7d6c8f296f06d935f4f < d71abd1ae4e0413707cd42b10c24a11d1aa71772 ; affected d20c11d86d8f821a64eac7d6c8f296f06d935f4f < 74ad36ed60df561a303a19ecef400c7096b20306
Linux · Linuxaffected 3.17 ; unaffected 0 < 3.17 ; unaffected 5.4.297 ≤ 5.4.* ; unaffected 5.10.241 ≤ 5.10.* ; unaffected 5.15.190 ≤ 5.15.* ; unaffected 6.1.149 ≤ 6.1.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD