syz-executor.1: attempt to access beyond end of device loop1: rw=2049, sector=77824, nr_sectors = 2048 limit=63271 syz-executor.1: attempt to access beyond end of device loop1: rw=2049, sector=79872, nr_sectors = 2048 limit=63271 ====================================================== WARNING: possible circular locking dependency detected 6.3.0-syzkaller-12378-gc8c655c34e33 #0 Not tainted ------------------------------------------------------ syz-executor.1/26208 is trying to acquire lock: ffff8880294dc1a0 (&iint->mutex){+.+.}-{3:3}, at: ima_check_last_writer security/integrity/ima/ima_main.c:165 [inline] ffff8880294dc1a0 (&iint->mutex){+.+.}-{3:3}, at: ima_file_free+0x110/0x3c0 security/integrity/ima/ima_main.c:199 but task is already holding lock: ffff88805b928448 (&sbi->node_write){++++}-{3:3}, at: f2fs_down_read fs/f2fs/f2fs.h:2087 [inline] ffff88805b928448 (&sbi->node_write){++++}-{3:3}, at: f2fs_write_single_data_page+0xa10/0x1d50 fs/f2fs/data.c:2842 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&sbi->node_write){++++}-{3:3}: reacquire_held_locks+0x3aa/0x660 kernel/locking/lockdep.c:5216 __lock_release kernel/locking/lockdep.c:5405 [inline] lock_release+0x36f/0x9d0 kernel/locking/lockdep.c:5711 up_write+0x79/0x580 kernel/locking/rwsem.c:1625 f2fs_write_checkpoint+0x13a4/0x1f90 fs/f2fs/checkpoint.c:1651 __write_checkpoint_sync fs/f2fs/checkpoint.c:1768 [inline] __checkpoint_and_complete_reqs+0xda/0x3b0 fs/f2fs/checkpoint.c:1787 issue_checkpoint_thread+0xda/0x260 fs/f2fs/checkpoint.c:1818 kthread+0x2b8/0x350 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 -> #3 (&sbi->cp_rwsem){++++}-{3:3}: lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5691 down_read+0x3d/0x50 kernel/locking/rwsem.c:1520 f2fs_down_read fs/f2fs/f2fs.h:2087 [inline] f2fs_lock_op fs/f2fs/f2fs.h:2130 [inline] f2fs_convert_inline_inode+0x578/0x800 fs/f2fs/inline.c:218 f2fs_vm_page_mkwrite+0x32c/0x13d0 fs/f2fs/file.c:79 do_page_mkwrite+0x1a4/0x600 mm/memory.c:2931 do_shared_fault mm/memory.c:4595 [inline] do_fault mm/memory.c:4663 [inline] do_pte_missing mm/memory.c:3647 [inline] handle_pte_fault mm/memory.c:4947 [inline] __handle_mm_fault mm/memory.c:5089 [inline] handle_mm_fault+0x2140/0x5860 mm/memory.c:5243 do_user_addr_fault arch/x86/mm/fault.c:1440 [inline] handle_page_fault arch/x86/mm/fault.c:1534 [inline] exc_page_fault+0x7d2/0x910 arch/x86/mm/fault.c:1590 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 -> #2 (&mm->mmap_lock){++++}-{3:3}: lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5691 internal_get_user_pages_fast+0x244/0x2ce0 mm/gup.c:2967 __iov_iter_get_pages_alloc+0x3c9/0x940 lib/iov_iter.c:1509 iov_iter_get_pages+0xd9/0x130 lib/iov_iter.c:1552 __bio_iov_iter_get_pages block/bio.c:1269 [inline] bio_iov_iter_get_pages+0x480/0x12b0 block/bio.c:1340 iomap_dio_bio_iter+0xac2/0x1430 fs/iomap/direct-io.c:325 __iomap_dio_rw+0x12c3/0x22e0 fs/iomap/direct-io.c:598 iomap_dio_rw+0x46/0xa0 fs/iomap/direct-io.c:688 xfs_file_dio_write_aligned+0x222/0x350 fs/xfs/xfs_file.c:543 xfs_file_dio_write fs/xfs/xfs_file.c:655 [inline] xfs_file_write_iter+0x508/0x620 fs/xfs/xfs_file.c:797 do_iter_write+0x7b1/0xcb0 fs/read_write.c:860 vfs_writev fs/read_write.c:933 [inline] do_pwritev+0x21a/0x360 fs/read_write.c:1030 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd -> #1 (&sb->s_type->i_mutex_key#26){++++}-{3:3}: lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5691 down_read_nested+0x40/0x60 kernel/locking/rwsem.c:1645 xfs_ilock+0x10e/0x3a0 fs/xfs/xfs_inode.c:198 xfs_ilock_iocb fs/xfs/xfs_file.c:211 [inline] xfs_file_buffered_read+0x160/0x320 fs/xfs/xfs_file.c:274 xfs_file_read_iter+0x262/0x4d0 fs/xfs/xfs_file.c:302 __kernel_read+0x422/0x8a0 fs/read_write.c:428 integrity_kernel_read+0xb0/0xf0 security/integrity/iint.c:192 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:485 [inline] ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline] ima_calc_file_hash+0x1643/0x1d20 security/integrity/ima/ima_crypto.c:573 ima_collect_measurement+0x3a7/0x880 security/integrity/ima/ima_api.c:293 process_measurement+0xfdb/0x1ce0 security/integrity/ima/ima_main.c:341 ima_file_check+0xf1/0x170 security/integrity/ima/ima_main.c:539 do_open fs/namei.c:3638 [inline] path_openat+0x280a/0x3170 fs/namei.c:3791 do_filp_open+0x234/0x490 fs/namei.c:3818 do_sys_openat2+0x13f/0x500 fs/open.c:1356 do_sys_open fs/open.c:1372 [inline] __do_sys_open fs/open.c:1380 [inline] __se_sys_open fs/open.c:1376 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1376 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd -> #0 (&iint->mutex){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3108 [inline] check_prevs_add kernel/locking/lockdep.c:3227 [inline] validate_chain+0x166b/0x58e0 kernel/locking/lockdep.c:3842 __lock_acquire+0x1295/0x2000 kernel/locking/lockdep.c:5074 lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5691 __mutex_lock_common+0x1d8/0x2530 kernel/locking/mutex.c:603 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799 ima_check_last_writer security/integrity/ima/ima_main.c:165 [inline] ima_file_free+0x110/0x3c0 security/integrity/ima/ima_main.c:199 __fput+0x32e/0x890 fs/file_table.c:315 task_work_run+0x24a/0x300 kernel/task_work.c:179 get_signal+0x1606/0x17e0 kernel/signal.c:2650 arch_do_signal_or_restart+0x91/0x670 arch/x86/kernel/signal.c:306 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd other info that might help us debug this: Chain exists of: &iint->mutex --> &sbi->cp_rwsem --> &sbi->node_write Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(&sbi->node_write); lock(&sbi->cp_rwsem); lock(&sbi->node_write); lock(&iint->mutex); *** DEADLOCK *** 1 lock held by syz-executor.1/26208: #0: ffff88805b928448 (&sbi->node_write){++++}-{3:3}, at: f2fs_down_read fs/f2fs/f2fs.h:2087 [inline] #0: ffff88805b928448 (&sbi->node_write){++++}-{3:3}, at: f2fs_write_single_data_page+0xa10/0x1d50 fs/f2fs/data.c:2842 stack backtrace: CPU: 0 PID: 26208 Comm: syz-executor.1 Not tainted 6.3.0-syzkaller-12378-gc8c655c34e33 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 check_noncircular+0x2fe/0x3b0 kernel/locking/lockdep.c:2188 check_prev_add kernel/locking/lockdep.c:3108 [inline] check_prevs_add kernel/locking/lockdep.c:3227 [inline] validate_chain+0x166b/0x58e0 kernel/locking/lockdep.c:3842 __lock_acquire+0x1295/0x2000 kernel/locking/lockdep.c:5074 lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5691 __mutex_lock_common+0x1d8/0x2530 kernel/locking/mutex.c:603 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799 ima_check_last_writer security/integrity/ima/ima_main.c:165 [inline] ima_file_free+0x110/0x3c0 security/integrity/ima/ima_main.c:199 __fput+0x32e/0x890 fs/file_table.c:315 task_work_run+0x24a/0x300 kernel/task_work.c:179 get_signal+0x1606/0x17e0 kernel/signal.c:2650 arch_do_signal_or_restart+0x91/0x670 arch/x86/kernel/signal.c:306 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f8281a8c169 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f82827f4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: fffffffffffffffb RBX: 00007f8281babf80 RCX: 00007f8281a8c169 RDX: 0000000000000001 RSI: 0000000020000240 RDI: 0000000000000004 RBP: 00007f8281ae7ca1 R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000001400 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe420958ff R14: 00007f82827f4300 R15: 0000000000022000