CVE-2026-89691

In the Linux kernel, the following vulnerability has been resolved: nfsd: clear opcnt on compound arg release to prevent OOB read nfsd4releasecompoundargs resets args-ops to the inline iops8 array when the dynamically-allocated ops buffer is freed, but leaves args-opcnt at its original value whic...

CVE-2026-89691

CVE-2026-89691 affects the Linux kernel's nfsd (NFS server) component. The root cause is that nfsd4_release_compoundargs() resets args->ops to the inline 8-element iops[] array after freeing the dynamically allocated ops buffer, but fails to clear args->opcnt, which can be up to 200 for NFS...

CVE-2026-89691 nfsd: clear opcnt on compound arg release to prevent OOB read

In the Linux kernel, the following vulnerability has been resolved: nfsd: clear opcnt on compound arg release to prevent OOB read nfsd4releasecompoundargs resets args-ops to the inline iops8 array when the dynamically-allocated ops buffer is freed, but leaves args-opcnt at its original value whic...

PT-2026-90407

In the Linux kernel, the following vulnerability has been resolved: nfsd: clear opcnt on compound arg release to prevent OOB read nfsd4 release compoundargs resets args-ops to the inline iops8 array when the dynamically-allocated ops buffer is freed, but leaves args-opcnt at its original value...