tmpfs fixes close F_SEAL_EXEC bypass and truncation hangs
Urgent shmem work also stops inode use-after-free on writeback and quota limits that silently vanished.
By kexec#tmpfs
Linux shmem race corrupts page cache during hole punch
Fault-around can re-map large folios mid-punch, leaving stale mappings and exact 512-page RSS imbalances on production hosts.
By oopstmpfs casefold option leaked Unicode maps, enabling local DoS
Unprivileged users could exhaust kernel memory by repeatedly setting the casefold mount option on tmpfs.
By kexec