PT-2025-54105 · Linux+1 · Linux Kernel+1
Published
2025-12-30
·
Updated
2026-03-24
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CVE-2023-54276
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A flaw exists in the Linux kernel’s Network File System daemon (nfsd) related to the initialization of per-CPU reply cache statistics counters. A previous commit moved the initialization of the reply cache, but did not properly account for the statistics counters, potentially leading to a NULL pointer dereference when accessing
/proc/fs/nfsd/reply cache stats before nfsd is fully started. This issue is user-triggerable under specific conditions, including non-x86 64 architectures, a mounted /proc/fs/nfsd filesystem, and nfsd not being started in the namespace. On x86 64 architectures, accessing the counters may not immediately cause an error due to the structure of fixed per-CPU data.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Related Identifiers
Affected Products
Linux Kernel
Red Hat