CVE-2025-22026

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

Description

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.

N/A

CVSS

Severity:

EPSS 0.04%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/6a59b70fe71ec66c0dd19e2c279c71846a3fb2f0
https://git.kernel.org/stable/c/e31957a819e60cf0bc9a49408765e6095fd3d046
https://git.kernel.org/stable/c/9d9456185fd5f1891c74354ee297f19538141ead
https://git.kernel.org/stable/c/930b64ca0c511521f0abdd1d57ce52b2a6e3476b

Frequently Asked Questions

What is the severity of CVE-2025-22026?: CVE-2025-22026 has not yet been assigned a CVSS score.
How to fix CVE-2025-22026?: To fix CVE-2025-22026, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-22026 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-22026 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-22026?: CVE-2025-22026 affects Linux Linux, Linux Linux.

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