medium5.5
CVE-2026-43394
In the Linux kernel, the following vulnerability has been resolved: nfsd: Fix cred ref leak in nfsd_nl_listener_set_doit().
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 6.10 before 6.12.78 from 6.13 before 6.18.19 from 6.19 before 6.19.9 Version 7.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/019debe5851d7355bea9ff0248cc317878924d8f
- https://git.kernel.org/stable/c/02e87ec0bc706cb93fa47b43d18c4d10102c7d54
- https://git.kernel.org/stable/c/92978c83bb4eef55d02a6c990c01c423131eefa7
- https://git.kernel.org/stable/c/cba413765376bb466035c9160fa3130402971e2c