CVE-2026-43394

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux16a471177496c8e04a9793812c187a2c1a2192fa < 02e87ec0bc706cb93fa47b43d18c4d10102c7d54affected
LinuxLinux16a471177496c8e04a9793812c187a2c1a2192fa < 019debe5851d7355bea9ff0248cc317878924d8faffected
LinuxLinux16a471177496c8e04a9793812c187a2c1a2192fa < cba413765376bb466035c9160fa3130402971e2caffected
LinuxLinux16a471177496c8e04a9793812c187a2c1a2192fa < 92978c83bb4eef55d02a6c990c01c423131eefa7affected
LinuxLinux6.10affected
LinuxLinux0 < 6.10unaffected
LinuxLinux6.12.78 <= 6.12.*unaffected
LinuxLinux6.18.19 <= 6.18.*unaffected
LinuxLinux6.19.9 <= 6.19.*unaffected
LinuxLinux7.0 <= *unaffected

Weaknesses

References