Linux Distros Unpatched Vulnerability : CVE-2026-89678

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nfsd: fix partial-write detection in nfsddirectwrite nfsddirectwrite walks a list of write segments and, after each vfsiocbiterwrite, tries to detect a short...

CVE-2026-89678

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix partial-write detection in nfsddirectwrite nfsddirectwrite walks a list of write segments and, after each vfsiocbiterwrite, tries to detect a short write so the loop can stop before placing the next segment at a wrong...

UBUNTU-CVE-2026-89678

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix partial-write detection in nfsddirectwrite nfsddirectwrite walks a list of write segments and, after each vfsiocbiterwrite, tries to detect a short write so the loop can stop before placing the next segment at a wrong...

CVE-2026-89678

CVE-2026-89678 is a flaw in the Linux kernel's nfsd (NFS server daemon), specifically in the nfsd_direct_write() function. The partial-write detection logic compares host_err against segments[i].iter.count, which has already been advanced by vfs_iocb_iter_write() to the residual (original length ...