PT-2026-27662 · Linux · Linux Kernel
Published
2026-01-01
·
Updated
2026-05-29
·
CVE-2026-23297
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a memory leak in the
nfsd nl threads set doit() function. Specifically, a reference to a cred structure is leaked when nfsd nl threads set doit() calls nfsd svc() without subsequently calling put cred(). This occurs because the ownership of the reference count is not transferred. The issue was identified by syzbot, a fuzzing tool, which reported an unreferenced object in memory. The function nfsd svc() is also called from write threads(), but does not increment the file credential count. The current cred() function is used in nfsd nl threads set doit() to address this.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Memory Leak
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel