ntfs3: loop3: Failed to initialize $Extend/$ObjId. ====================================================== WARNING: possible circular locking dependency detected 6.11.0-rc4-syzkaller-00274-g780bdc1ba776 #0 Not tainted ------------------------------------------------------ syz.3.335/8797 is trying to acquire lock: ffff888057c6ad10 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline] ffff888057c6ad10 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_fallocate+0x935/0x1280 fs/ntfs3/file.c:635 but task is already holding lock: ffff888057c6b148 (mapping.invalidate_lock#7){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:844 [inline] ffff888057c6b148 (mapping.invalidate_lock#7){++++}-{3:3}, at: ntfs_fallocate+0x3c7/0x1280 fs/ntfs3/file.c:549 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (mapping.invalidate_lock#7){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:854 [inline] filemap_fault+0x658/0x1760 mm/filemap.c:3302 __do_fault+0x135/0x460 mm/memory.c:4655 do_read_fault mm/memory.c:5061 [inline] do_fault mm/memory.c:5191 [inline] do_pte_missing mm/memory.c:3947 [inline] handle_pte_fault+0x321f/0x6fc0 mm/memory.c:5521 __handle_mm_fault mm/memory.c:5664 [inline] handle_mm_fault+0xf70/0x1880 mm/memory.c:5832 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8c0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 fault_in_readable+0x165/0x2b0 fault_in_iov_iter_readable+0x229/0x280 lib/iov_iter.c:94 generic_perform_write+0x29f/0x840 mm/filemap.c:4009 ntfs_file_write_iter+0x663/0x740 fs/ntfs3/file.c:1193 new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa72/0xc90 fs/read_write.c:590 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&mm->mmap_lock){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __might_fault+0xc6/0x120 mm/memory.c:6387 _inline_copy_to_user include/linux/uaccess.h:176 [inline] _copy_to_user+0x2a/0xb0 lib/usercopy.c:26 copy_to_user include/linux/uaccess.h:209 [inline] ni_fiemap+0x5b4/0x1910 fs/ntfs3/frecord.c:2140 ntfs_fiemap+0x132/0x180 fs/ntfs3/file.c:1279 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:841 __do_sys_ioctl fs/ioctl.c:905 [inline] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&ni->ni_lock/4){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3133 [inline] check_prevs_add kernel/locking/lockdep.c:3252 [inline] validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3868 __lock_acquire+0x137a/0x2040 kernel/locking/lockdep.c:5142 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752 ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline] ntfs_fallocate+0x935/0x1280 fs/ntfs3/file.c:635 vfs_fallocate+0x553/0x6c0 fs/open.c:334 ksys_fallocate fs/open.c:357 [inline] __do_sys_fallocate fs/open.c:365 [inline] __se_sys_fallocate fs/open.c:363 [inline] __x64_sys_fallocate+0xbd/0x110 fs/open.c:363 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &ni->ni_lock/4 --> &mm->mmap_lock --> mapping.invalidate_lock#7 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(mapping.invalidate_lock#7); lock(&mm->mmap_lock); lock(mapping.invalidate_lock#7); lock(&ni->ni_lock/4); *** DEADLOCK *** 3 locks held by syz.3.335/8797: #0: ffff88802042c420 (sb_writers#15){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2881 [inline] #0: ffff88802042c420 (sb_writers#15){.+.+}-{0:0}, at: vfs_fallocate+0x4ea/0x6c0 fs/open.c:333 #1: ffff888057c6afa8 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:799 [inline] #1: ffff888057c6afa8 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: ntfs_fallocate+0x2e0/0x1280 fs/ntfs3/file.c:535 #2: ffff888057c6b148 (mapping.invalidate_lock#7){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:844 [inline] #2: ffff888057c6b148 (mapping.invalidate_lock#7){++++}-{3:3}, at: ntfs_fallocate+0x3c7/0x1280 fs/ntfs3/file.c:549 stack backtrace: CPU: 0 UID: 0 PID: 8797 Comm: syz.3.335 Not tainted 6.11.0-rc4-syzkaller-00274-g780bdc1ba776 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2186 check_prev_add kernel/locking/lockdep.c:3133 [inline] check_prevs_add kernel/locking/lockdep.c:3252 [inline] validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3868 __lock_acquire+0x137a/0x2040 kernel/locking/lockdep.c:5142 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752 ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline] ntfs_fallocate+0x935/0x1280 fs/ntfs3/file.c:635 vfs_fallocate+0x553/0x6c0 fs/open.c:334 ksys_fallocate fs/open.c:357 [inline] __do_sys_fallocate fs/open.c:365 [inline] __se_sys_fallocate fs/open.c:363 [inline] __x64_sys_fallocate+0xbd/0x110 fs/open.c:363 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2e43979e79 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2e44671038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007f2e43b15f80 RCX: 00007f2e43979e79 RDX: 0000000000000000 RSI: 0000000000000020 RDI: 0000000000000004 RBP: 00007f2e439e793e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000010000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f2e43b15f80 R15: 00007ffcb3ff5bb8 overlay: ./file2 is not a directory