====================================================== WARNING: possible circular locking dependency detected 6.7.0-next-20240112-syzkaller #0 Not tainted ------------------------------------------------------ kworker/u4:0/16191 is trying to acquire lock: ffff88808faf5bc0 (&rl->lock){++++}-{3:3}, at: ntfs_read_block fs/ntfs/aops.c:242 [inline] ffff88808faf5bc0 (&rl->lock){++++}-{3:3}, at: ntfs_read_folio+0x1a9a/0x2430 fs/ntfs/aops.c:430 but task is already holding lock: ffff88808faf09d0 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4a/0x740 fs/ntfs/mft.c:154 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&ni->mrec_lock){+.+.}-{3:3}: __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x175/0x9c0 kernel/locking/mutex.c:752 map_mft_record+0x4a/0x740 fs/ntfs/mft.c:154 ntfs_map_runlist_nolock+0xbc2/0x17a0 fs/ntfs/attrib.c:91 ntfs_map_runlist+0x7b/0xb0 fs/ntfs/attrib.c:292 ntfs_read_block fs/ntfs/aops.c:277 [inline] ntfs_read_folio+0x1aec/0x2430 fs/ntfs/aops.c:430 read_pages+0xa7d/0xdd0 mm/readahead.c:180 page_cache_ra_unbounded+0x455/0x5f0 mm/readahead.c:269 do_page_cache_ra mm/readahead.c:299 [inline] page_cache_ra_order+0x7b7/0xa70 mm/readahead.c:544 ondemand_readahead+0x493/0x1130 mm/readahead.c:666 page_cache_sync_ra+0x174/0x1d0 mm/readahead.c:693 page_cache_sync_readahead include/linux/pagemap.h:1314 [inline] filemap_get_pages+0xc0f/0x1840 mm/filemap.c:2498 filemap_read+0x39b/0xcf0 mm/filemap.c:2594 generic_file_read_iter+0x350/0x460 mm/filemap.c:2784 __kernel_read+0x3ec/0xb20 fs/read_write.c:434 integrity_kernel_read+0x7f/0xb0 security/integrity/iint.c:221 ima_calc_file_hash_tfm+0x2cf/0x3e0 security/integrity/ima/ima_crypto.c:485 ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline] ima_calc_file_hash+0x1c6/0x4a0 security/integrity/ima/ima_crypto.c:573 ima_collect_measurement+0x86c/0xa20 security/integrity/ima/ima_api.c:290 process_measurement+0xe96/0x2280 security/integrity/ima/ima_main.c:359 ima_file_check+0xc1/0x110 security/integrity/ima/ima_main.c:557 do_open fs/namei.c:3641 [inline] path_openat+0x17ad/0x2990 fs/namei.c:3796 do_filp_open+0x1dc/0x430 fs/namei.c:3823 do_sys_openat2+0x17a/0x1e0 fs/open.c:1404 do_sys_open fs/open.c:1419 [inline] __do_sys_openat fs/open.c:1435 [inline] __se_sys_openat fs/open.c:1430 [inline] __x64_sys_openat+0x175/0x210 fs/open.c:1430 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6d/0x75 -> #0 (&rl->lock){++++}-{3:3}: check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x2478/0x3b30 kernel/locking/lockdep.c:5137 lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719 down_read+0x9a/0x330 kernel/locking/rwsem.c:1526 ntfs_read_block fs/ntfs/aops.c:242 [inline] ntfs_read_folio+0x1a9a/0x2430 fs/ntfs/aops.c:430 filemap_read_folio+0xe9/0x2c0 mm/filemap.c:2324 do_read_cache_folio+0x209/0x550 mm/filemap.c:3703 do_read_cache_page mm/filemap.c:3769 [inline] read_cache_page+0x5b/0x160 mm/filemap.c:3778 read_mapping_page include/linux/pagemap.h:902 [inline] ntfs_map_page fs/ntfs/aops.h:75 [inline] ntfs_sync_mft_mirror+0x242/0x1ed0 fs/ntfs/mft.c:480 write_mft_record_nolock+0x197b/0x1da0 fs/ntfs/mft.c:787 write_mft_record+0x14b/0x380 fs/ntfs/mft.h:95 __ntfs_write_inode+0x91f/0xc30 fs/ntfs/inode.c:3052 write_inode fs/fs-writeback.c:1473 [inline] __writeback_single_inode+0xa9a/0xe90 fs/fs-writeback.c:1690 writeback_sb_inodes+0x5a6/0x1090 fs/fs-writeback.c:1916 wb_writeback+0x2ad/0xab0 fs/fs-writeback.c:2092 wb_do_writeback fs/fs-writeback.c:2239 [inline] wb_workfn+0x29f/0xfe0 fs/fs-writeback.c:2279 process_one_work+0x8a7/0x1600 kernel/workqueue.c:2633 process_scheduled_works kernel/workqueue.c:2706 [inline] worker_thread+0x8b6/0x1290 kernel/workqueue.c:2787 kthread+0x2c1/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ni->mrec_lock); lock(&rl->lock); lock(&ni->mrec_lock); rlock(&rl->lock); *** DEADLOCK *** 3 locks held by kworker/u4:0/16191: #0: ffff8880192a1d38 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x78c/0x1600 kernel/workqueue.c:2608 #1: ffffc90014f47d80 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7f6/0x1600 kernel/workqueue.c:2609 #2: ffff88808faf09d0 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4a/0x740 fs/ntfs/mft.c:154 stack backtrace: CPU: 0 PID: 16191 Comm: kworker/u4:0 Not tainted 6.7.0-next-20240112-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Workqueue: writeback wb_workfn (flush-7:1) Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 check_noncircular+0x31a/0x400 kernel/locking/lockdep.c:2187 check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x2478/0x3b30 kernel/locking/lockdep.c:5137 lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719 down_read+0x9a/0x330 kernel/locking/rwsem.c:1526 ntfs_read_block fs/ntfs/aops.c:242 [inline] ntfs_read_folio+0x1a9a/0x2430 fs/ntfs/aops.c:430 filemap_read_folio+0xe9/0x2c0 mm/filemap.c:2324 do_read_cache_folio+0x209/0x550 mm/filemap.c:3703 do_read_cache_page mm/filemap.c:3769 [inline] read_cache_page+0x5b/0x160 mm/filemap.c:3778 read_mapping_page include/linux/pagemap.h:902 [inline] ntfs_map_page fs/ntfs/aops.h:75 [inline] ntfs_sync_mft_mirror+0x242/0x1ed0 fs/ntfs/mft.c:480 write_mft_record_nolock+0x197b/0x1da0 fs/ntfs/mft.c:787 write_mft_record+0x14b/0x380 fs/ntfs/mft.h:95 __ntfs_write_inode+0x91f/0xc30 fs/ntfs/inode.c:3052 write_inode fs/fs-writeback.c:1473 [inline] __writeback_single_inode+0xa9a/0xe90 fs/fs-writeback.c:1690 writeback_sb_inodes+0x5a6/0x1090 fs/fs-writeback.c:1916 wb_writeback+0x2ad/0xab0 fs/fs-writeback.c:2092 wb_do_writeback fs/fs-writeback.c:2239 [inline] wb_workfn+0x29f/0xfe0 fs/fs-writeback.c:2279 process_one_work+0x8a7/0x1600 kernel/workqueue.c:2633 process_scheduled_works kernel/workqueue.c:2706 [inline] worker_thread+0x8b6/0x1290 kernel/workqueue.c:2787 kthread+0x2c1/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242