Medium 5.5Published May 8, 2026

CVE-2026-43394nfsd: Fix cred ref leak in nfsd_nl_listener_set_doit().

Updated under an hour ago (Oct 26, 2026, 12:50 PM ET)

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Exploited in the last 30 days

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().

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	16a471177496c8e04a9793812c187a2c1a2192fa builds before 02e87ec0bc706cb93fa47b43d18c4d10102c7d54; from 16a471177496c8e04a9793812c187a2c1a2192fa before 019debe5851d7355bea9ff0248cc317878924d8f; from 16a471177496c8e04a9793812c187a2c1a2192fa before cba413765376bb466035c9160fa3130402971e2c; from 16a471177496c8e04a9793812c187a2c1a2192fa before 92978c83bb4eef55d02a6c990c01c423131eefa7	CNA record
linux linux_kernel linux:linux_kernel	from 6.10 before 6.12.78; from 6.13 before 6.18.19; from 6.19 before 6.19.9; 7.0; 7.0	NVD

References

References

https://git.kernel.org/stable/c/02e87ec0bc706cb93fa47b43d18c4d10102c7d54	patch
https://git.kernel.org/stable/c/019debe5851d7355bea9ff0248cc317878924d8f	patch
https://git.kernel.org/stable/c/cba413765376bb466035c9160fa3130402971e2c	patch
https://git.kernel.org/stable/c/92978c83bb4eef55d02a6c990c01c423131eefa7	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.