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CVE-2025-22026

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 5545496966631cd40ad3aa6450be56d0e5773d10 before 51107e768de6821b68aa34a136d07bc7a09cf6c3; affected 73c43bccf25cec9cdec62fc22a513c28a4b28390 before e4316bd85e42b01125b2aab691769234a388b8a3; affected 10ece754df9a799131a1cf3197e9d26c04ddec22 before 51da899c209a9624e48be416bd30e7ed5cd6c3d8; affected 6f8d6ed3426a17f77628cebfb6a6e2c6f2b2496c before 30405b23b4d5e2a596fb756d48119d7293194e75; affected 93483ac5fec62cc1de166051b219d953bb5e4ef4 before 6a59b70fe71ec66c0dd19e2c279c71846a3fb2f0; affected 93483ac5fec62cc1de166051b219d953bb5e4ef4 before e31957a819e60cf0bc9a49408765e6095fd3d046; affected 93483ac5fec62cc1de166051b219d953bb5e4ef4 before 9d9456185fd5f1891c74354ee297f19538141ead; affected 93483ac5fec62cc1de166051b219d953bb5e4ef4 before 930b64ca0c511521f0abdd1d57ce52b2a6e3476b; affected b7b05f98f3f06fea3986b46e5c7fe2928676b02d; affected 5.10.226 before 5.10.259; affected 5.15.166 before 5.15.210; affected 6.1.106 before 6.1.164; affected 6.6.47 before 6.6.125; affected 6.8.10 before 6.9
Linux / Linuxaffected 6.9; unaffected 0 before 6.9; unaffected 5.10.259 through 5.10.*; unaffected 5.15.210 through 5.15.*; unaffected 6.1.164 through 6.1.*; unaffected 6.6.125 through 6.6.*; unaffected 6.12.24 through 6.12.*; unaffected 6.13.12 through 6.13.*; unaffected 6.14.2 through 6.14.*; unaffected 6.15 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.