5.5

CVE-2025-22026

nfsd: don't ignore the return code of svc_proc_register()

In the Linux kernel, the following vulnerability has been resolved:

nfsd: don't ignore the return code of svc_proc_register()

Currently, nfsd_proc_stat_init() ignores the return value of
svc_proc_register(). If the procfile creation fails, then the kernel
will WARN when it tries to remove the entry later.

Fix nfsd_proc_stat_init() to return the same type of pointer as
svc_proc_register(), and fix up nfsd_net_init() to check that and fail
the nfsd_net construction if it occurs.

svc_proc_register() can fail if the dentry can't be allocated, or if an
identical dentry already exists. The second case is pretty unlikely in
the nfsd_net construction codepath, so if this happens, return -ENOMEM.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 6.12.24
Linux ≫ Linux Kernel Version >= 6.13 < 6.13.12
Linux ≫ Linux Kernel Version >= 6.14 < 6.14.2
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.18% 0.075
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-252 Unchecked Return Value

The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.

https://git.kernel.org/stable/c/9d9456185fd5f1891c74354ee297f19538141ead
Patch
https://git.kernel.org/stable/c/930b64ca0c511521f0abdd1d57ce52b2a6e3476b
Patch
https://git.kernel.org/stable/c/6a59b70fe71ec66c0dd19e2c279c71846a3fb2f0
Patch
https://git.kernel.org/stable/c/e31957a819e60cf0bc9a49408765e6095fd3d046
Patch
https://git.kernel.org/stable/c/30405b23b4d5e2a596fb756d48119d7293194e75
Patch
https://git.kernel.org/stable/c/51da899c209a9624e48be416bd30e7ed5cd6c3d8
Patch