CVE-2025-22026
nfsd: don't ignore the return code of svc_proc_register()
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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.
Reserved 2024-12-29 | Published 2025-04-16 | Updated 2025-05-26 | Assigner Linuxgit.kernel.org/...c/6a59b70fe71ec66c0dd19e2c279c71846a3fb2f0
git.kernel.org/...c/e31957a819e60cf0bc9a49408765e6095fd3d046
git.kernel.org/...c/9d9456185fd5f1891c74354ee297f19538141ead
git.kernel.org/...c/930b64ca0c511521f0abdd1d57ce52b2a6e3476b
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