CVE-2025-68369

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> ntfs3: init run lock for extend inode<br /> <br /> After setting the inode mode of $Extend to a regular file, executing the<br /> truncate system call will enter the do_truncate() routine, causing the<br /> run_lock uninitialized error reported by syzbot.<br /> <br /> Prior to patch 4e8011ffec79, if the inode mode of $Extend was not set to<br /> a regular file, the do_truncate() routine would not be entered.<br /> <br /> Add the run_lock initialization when loading $Extend.<br /> <br /> syzbot reported:<br /> INFO: trying to register non-static key.<br /> Call Trace:<br /> dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120<br /> assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984<br /> register_lock_class+0x105/0x320 kernel/locking/lockdep.c:1299<br /> __lock_acquire+0x99/0xd20 kernel/locking/lockdep.c:5112<br /> lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5868<br /> down_write+0x96/0x1f0 kernel/locking/rwsem.c:1590<br /> ntfs_set_size+0x140/0x200 fs/ntfs3/inode.c:860<br /> ntfs_extend+0x1d9/0x970 fs/ntfs3/file.c:387<br /> ntfs_setattr+0x2e8/0xbe0 fs/ntfs3/file.c:808