CVE-2026-43394

MediumCVSS 5.5/10Last modified Nov 11, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

nfsd: Fix cred ref leak in nfsd_nl_listener_set_doit().

nfsd_nl_listener_set_doit() uses get_current_cred() without put_cred().

As we can see from other callers, svc_xprt_create_from_sa() does not require the extra refcount.

nfsd_nl_listener_set_doit() is always in the process context, sendmsg(), and current->cred does not go away.

Let's use current_cred() in nfsd_nl_listener_set_doit().

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-401

Affected software

VendorProductVersions
LinuxLinux>= 16a471177496c8e04a9793812c187a2c1a2192fa, < 02e87ec0bc706cb93fa47b43d18c4d10102c7d54; >= 16a471177496c8e04a9793812c187a2c1a2192fa, < 019debe5851d7355bea9ff0248cc317878924d8f; >= 16a471177496c8e04a9793812c187a2c1a2192fa, < cba413765376bb466035c9160fa3130402971e2c; >= 16a471177496c8e04a9793812c187a2c1a2192fa, < 92978c83bb4eef55d02a6c990c01c423131eefa7
LinuxLinux6.10

References

Timeline

Published
May 8, 2026
Last modified
Nov 11, 2026
NVD status
Analyzed

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CVE-2026-43394: Medium severity, CVSS 5.5 | Vulnix