CVE-2025-38724 (GCVE-0-2025-38724)

Vulnerability from cvelistv5 – Published: 2025-09-04 15:33 – Updated: 2025-11-03 17:41
VLAI?
Title
nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm()
Summary
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().
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: d20c11d86d8f821a64eac7d6c8f296f06d935f4f , < 3f252a73e81aa01660cb426735eab932e6182e8d (git)
Affected: d20c11d86d8f821a64eac7d6c8f296f06d935f4f , < d35ac850410966010e92f401f4e21868a9ea4d8b (git)
Affected: d20c11d86d8f821a64eac7d6c8f296f06d935f4f , < f3aac6cf390d8b80e1d82975faf4ac61175519c0 (git)
Affected: d20c11d86d8f821a64eac7d6c8f296f06d935f4f , < 22f45cedf281e6171817c8a3432c44d788c550e1 (git)
Affected: d20c11d86d8f821a64eac7d6c8f296f06d935f4f , < d71abd1ae4e0413707cd42b10c24a11d1aa71772 (git)
Affected: d20c11d86d8f821a64eac7d6c8f296f06d935f4f , < 74ad36ed60df561a303a19ecef400c7096b20306 (git)
Affected: d20c11d86d8f821a64eac7d6c8f296f06d935f4f , < 36e83eda90e0e4ac52f259f775b40b2841f8a0a3 (git)
Affected: d20c11d86d8f821a64eac7d6c8f296f06d935f4f , < 571a5e46c71490285d2d8c06f6b5a7cbf6c7edd1 (git)
Affected: d20c11d86d8f821a64eac7d6c8f296f06d935f4f , < 908e4ead7f757504d8b345452730636e298cbf68 (git)
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    Linux Linux Affected: 3.17
Unaffected: 0 , < 3.17 (semver)
Unaffected: 5.4.297 , ≤ 5.4.* (semver)
Unaffected: 5.10.241 , ≤ 5.10.* (semver)
Unaffected: 5.15.190 , ≤ 5.15.* (semver)
Unaffected: 6.1.149 , ≤ 6.1.* (semver)
Unaffected: 6.6.103 , ≤ 6.6.* (semver)
Unaffected: 6.12.43 , ≤ 6.12.* (semver)
Unaffected: 6.15.11 , ≤ 6.15.* (semver)
Unaffected: 6.16.2 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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