CVE-2026-43394

nfsd: Fix cred ref leak in nfsd_nl_listener_set_doit().

MEDIUM

5.5

CVSS Score

Published: May 8, 2026 at 02:21 PM UTC

Updated: June 17, 2026 at 10:49 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.1%

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().

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

6.10 ≤ v < 6.12.786.10 ≤ v < 6.18.196.10 ≤ v < 6.19.96.10 ≤ v < 7.06.13 ≤ v < 6.18.196.19 ≤ v < 6.19.916a471177496c8e04a9793812c187a2c1a2192fa6.10 7.0 rc1 7.0 rc2

Vendor states this is fixed in 019debe5851d7355bea9ff0248cc317878924d8f (fixed)

Vendor states this is fixed in 02e87ec0bc706cb93fa47b43d18c4d10102c7d54 (fixed)

Vendor states this is fixed in 92978c83bb4eef55d02a6c990c01c423131eefa7 (fixed)

Vendor states this is fixed in cba413765376bb466035c9160fa3130402971e2c (fixed)

Vendor states this is fixed in 6.10 (unaffected)

Vendor states this is fixed in 6.12.78 (unaffected)

Vendor states this is fixed in 6.18.19 (unaffected)

Vendor states this is fixed in 6.19.9 (unaffected)

Vendor states this is fixed in 7.0 (unaffected)