Medium 5.5Published May 6, 2026

CVE-2026-43193nfsd: fix nfs4_file refcount leak in nfsd_get_dir_deleg()

Updated under an hour ago (Oct 28, 2026, 11:40 AM ET)

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix nfs4_file refcount leak in nfsd_get_dir_deleg() Claude pointed out that there is a nfs4_file refcount leak in nfsd_get_dir_deleg(). Ensure that the reference to "fp" is released before returning.

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)	8b99f6a8c116f664a6788737705f6da2772cc96a builds before 0d8362e15aad5b5c1d6a65bb23ac6c45ccf881f3; from 8b99f6a8c116f664a6788737705f6da2772cc96a before 789477b849394afdb60507924d65f7ef18f078ce	CNA record
linux linux_kernel linux:linux_kernel	from 6.19 before 6.19.6	NVD

References

References

https://git.kernel.org/stable/c/0d8362e15aad5b5c1d6a65bb23ac6c45ccf881f3	patch
https://git.kernel.org/stable/c/789477b849394afdb60507924d65f7ef18f078ce	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.