CVE-2026-89485

A flaw was found in the lockd component of the Linux kernel. This use-after-free vulnerability occurs in the nlmtraversefiles function when a file's memory is prematurely released while an iterator still holds a pointer to it. A remote attacker could potentially exploit this to cause system...

CVE-2026-89485

In the Linux kernel, the following vulnerability has been resolved: lockd: pin next file across nlminspectfile lock-drop nlmtraversefiles pins the current file with fcount++ across a mutexunlock for nlminspectfile, but nothing pins the saved next pointer. A concurrent nlmreleasefile can kfree the...

CVE-2026-89485 lockd: pin next file across nlm_inspect_file lock-drop

In the Linux kernel, the following vulnerability has been resolved: lockd: pin next file across nlminspectfile lock-drop nlmtraversefiles pins the current file with fcount++ across a mutexunlock for nlminspectfile, but nothing pins the saved next pointer. A concurrent nlmreleasefile can kfree the...

CVE-2026-89485

CVE-2026-89485 is a use-after-free vulnerability in the Linux kernel's lockd (NLM) subsystem, specifically in nlm_traverse_files(). The function pins the current file with f_count++ across a mutex_unlock for nlm_inspect_file(), but the saved next pointer remains unpinned . A concurrent nlm_releas...

EUVD-2026-76391

In the Linux kernel, the following vulnerability has been resolved: lockd: pin next file across nlminspectfile lock-drop nlmtraversefiles pins the current file with fcount++ across a mutexunlock for nlminspectfile, but nothing pins the saved next pointer. A concurrent nlmreleasefile can kfree the...