UBUNTU-CVE-2026-43394

In the Linux kernel, the following vulnerability has been resolved: nfsd: Fix cred ref leak in nfsdnllistenersetdoit. nfsdnllistenersetdoit uses getcurrentcred without putcred. As we can see from other callers, svcxprtcreatefromsa does not require the extra refcount. nfsdnllistenersetdoit is alwa...

CVE-2026-23297

CVE-2026-23297 affects the Linux kernel’s NFS daemon (nfsd). The issue is a memory leak of struct cred caused by how nfsd_nl_threads_set_doit() passes current credentials to nfsd_svc() and later to _svc_xprt_create() without transferring ownership, leaving a refcount leak. SYZBOT identified a lea...