CVE-2026-99172

The Linux kernel contains a memory leak vulnerability where mqueue mounts and mqueue superblocks are leaked during setup failures. The issue occurs because mq_init_ns() creates a mount with fc_mount_longterm(), but subsequent failures in create_ipc_ns() (during mqueue, ipc sysctls, or msg_init_ns...

CVE-2026-99172 ipc: drop the mqueue mount with kern_unmount() on setup failure

In the Linux kernel, the following vulnerability has been resolved: ipc: drop the mqueue mount with kernunmount on setup failure mqinitns creates the mqueue mount with fcmountlongterm, so its -mntns is MNTNSINTERNAL. When setting up the mqueue or ipc sysctls or msginitns fails afterwards,...