Acknowledged
Created: Jun 19, 2025
Updated: Jun 20, 2025
Found In Version: 10.22.33.1
Severity: Standard
Applicable for: Wind River Linux LTS 22
Component/s: Kernel
In the Linux kernel, the following vulnerability has been resolved:EOL][EOL]__legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock[EOL][EOL]... or we risk stealing final mntput from sync umount - raising mnt_count[EOL]after umount(2) has verified that victim is not busy, but before it[EOL]has set MNT_SYNC_UMOUNT; in that case __legitimize_mnt() doesn't see[EOL]that it's safe to quietly undo mnt_count increment and leaves dropping[EOL]the reference to caller, where it'll be a full-blown mntput().[EOL][EOL]Check under mount_lock is needed; leaving the current one done before[EOL]taking that makes no sense - it's nowhere near common enough to bother[EOL]with.
CREATE(Triage):(User=lchen-cn) [CVE-2025-38058 (https://nvd.nist.gov/vuln/detail/CVE-2025-38058)
