Overview
About vulnerability
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().
Details
- Affected product:
- AlmaLinux 9.2 ESU , TuxCare 9.6 ESU
- Affected packages:
- kernel @ 5.14.0 (+1 more)
Fixes
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| Debian 13 | Planned | — |