ntfs: volume version 3.1. EXT4-fs (loop5): mounted filesystem without journal. Opts: dioread_nolock,grpjquota=./file0,errors=remount-ro, syz-executor.4 (12997): drop_caches: 1 ====================================================== WARNING: possible circular locking dependency detected 4.14.302-syzkaller #0 Not tainted ------------------------------------------------------ kworker/u4:6/9336 is trying to acquire lock: (&rl->lock){++++}, at: [] ntfs_read_block fs/ntfs/aops.c:269 [inline] (&rl->lock){++++}, at: [] ntfs_readpage+0x1396/0x1ad0 fs/ntfs/aops.c:456 but task is already holding lock: (&ni->mrec_lock){+.+.}, at: [] map_mft_record+0x2b/0xbe0 fs/ntfs/mft.c:166 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&ni->mrec_lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 map_mft_record+0x2b/0xbe0 fs/ntfs/mft.c:166 ntfs_truncate+0x1a6/0x22d0 fs/ntfs/inode.c:2415 ntfs_truncate_vfs fs/ntfs/inode.c:2895 [inline] ntfs_setattr+0x148/0x580 fs/ntfs/inode.c:2945 notify_change+0x56b/0xd10 fs/attr.c:315 do_truncate+0xff/0x1a0 fs/open.c:63 handle_truncate fs/namei.c:3010 [inline] do_last fs/namei.c:3437 [inline] path_openat+0x1dcc/0x2970 fs/namei.c:3571 do_filp_open+0x179/0x3c0 fs/namei.c:3605 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 -> #0 (&rl->lock){++++}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 down_read+0x36/0x80 kernel/locking/rwsem.c:24 ntfs_read_block fs/ntfs/aops.c:269 [inline] ntfs_readpage+0x1396/0x1ad0 fs/ntfs/aops.c:456 do_read_cache_page+0x38e/0xc10 mm/filemap.c:2713 read_mapping_page include/linux/pagemap.h:398 [inline] ntfs_map_page fs/ntfs/aops.h:89 [inline] ntfs_sync_mft_mirror+0x1f4/0x1560 fs/ntfs/mft.c:490 write_mft_record_nolock+0xece/0x1240 fs/ntfs/mft.c:793 write_mft_record fs/ntfs/mft.h:109 [inline] __ntfs_write_inode+0x58d/0xcc0 fs/ntfs/inode.c:3084 write_inode fs/fs-writeback.c:1241 [inline] __writeback_single_inode+0x6a4/0x1010 fs/fs-writeback.c:1439 writeback_sb_inodes+0x48b/0xd30 fs/fs-writeback.c:1645 wb_writeback+0x243/0xb80 fs/fs-writeback.c:1820 wb_do_writeback fs/fs-writeback.c:1952 [inline] wb_workfn+0x2bd/0xf50 fs/fs-writeback.c:1988 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 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); EXT4-fs error (device loop5): ext4_mb_generate_buddy:754: group 0, lock(&rl->lock); *** DEADLOCK *** 3 locks held by kworker/u4:6/9336: #0: ("writeback"){+.+.}, at: [] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2088 #1: ((&(&wb->dwork)->work)){+.+.}, at: [] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2092 #2: (&ni->mrec_lock){+.+.}, at: [] map_mft_record+0x2b/0xbe0 fs/ntfs/mft.c:166 stack backtrace: CPU: 1 PID: 9336 Comm: kworker/u4:6 Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: writeback wb_workfn (flush-7:2) Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 down_read+0x36/0x80 kernel/locking/rwsem.c:24 ntfs_read_block fs/ntfs/aops.c:269 [inline] ntfs_readpage+0x1396/0x1ad0 fs/ntfs/aops.c:456 do_read_cache_page+0x38e/0xc10 mm/filemap.c:2713 read_mapping_page include/linux/pagemap.h:398 [inline] ntfs_map_page fs/ntfs/aops.h:89 [inline] ntfs_sync_mft_mirror+0x1f4/0x1560 fs/ntfs/mft.c:490 write_mft_record_nolock+0xece/0x1240 fs/ntfs/mft.c:793 write_mft_record fs/ntfs/mft.h:109 [inline] __ntfs_write_inode+0x58d/0xcc0 fs/ntfs/inode.c:3084 write_inode fs/fs-writeback.c:1241 [inline] __writeback_single_inode+0x6a4/0x1010 fs/fs-writeback.c:1439 writeback_sb_inodes+0x48b/0xd30 fs/fs-writeback.c:1645 wb_writeback+0x243/0xb80 fs/fs-writeback.c:1820 wb_do_writeback fs/fs-writeback.c:1952 [inline] wb_workfn+0x2bd/0xf50 fs/fs-writeback.c:1988 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 syz-executor.4 (12997): drop_caches: 1 block bitmap and bg descriptor inconsistent: 33 vs 41 free clusters EXT4-fs (loop5): Remounting filesystem read-only Quota error (device loop5): dqput: Can't write quota structure (error -30). Quota may get out of sync! Quota error (device loop5): dqput: Can't write quota structure (error -30). Quota may get out of sync! EXT4-fs (loop5): Journaled quota options ignored when QUOTA feature is enabled ntfs: volume version 3.1. EXT4-fs (loop5): mounted filesystem without journal. Opts: dioread_nolock,grpjquota=./file0,errors=remount-ro, EXT4-fs error (device loop5): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 33 vs 41 free clusters EXT4-fs (loop5): Remounting filesystem read-only Quota error (device loop5): dqput: Can't write quota structure (error -30). Quota may get out of sync! Quota error (device loop5): dqput: Can't write quota structure (error -30). Quota may get out of sync! syz-executor.4 (13104): drop_caches: 1 syz-executor.4 (13104): drop_caches: 1 €: renamed from tunl0 audit: type=1800 audit(1671123994.916:127): pid=13184 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name="file0" dev="sda1" ino=13929 res=0 syz-executor.4 (13158): drop_caches: 1 F2FS-fs (loop5): invalid crc value F2FS-fs (loop5): Found nat_bits in checkpoint F2FS-fs (loop5): Mounted with checkpoint version = 48b305e4 syz-executor.4 (13158): drop_caches: 1 audit: type=1800 audit(1671123996.016:128): pid=13266 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name="file0" dev="sda1" ino=13931 res=0 audit: type=1800 audit(1671123996.446:129): pid=13294 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.1" name="file0" dev="sda1" ino=13932 res=0 €: renamed from tunl0 audit: type=1800 audit(1671123997.136:130): pid=13318 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name="file0" dev="sda1" ino=13933 res=0 audit: type=1800 audit(1671123997.226:131): pid=13320 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name="file0" dev="sda1" ino=13934 res=0 syz-executor.4 (13253): drop_caches: 1 syz-executor.4 (13253): drop_caches: 1 device team_slave_0 entered promiscuous mode device team_slave_1 entered promiscuous mode device team_slave_0 left promiscuous mode device team_slave_1 left promiscuous mode audit: type=1800 audit(1671123998.066:132): pid=13362 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.1" name="file0" dev="sda1" ino=13935 res=0 audit: type=1800 audit(1671123998.276:133): pid=13363 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name="file0" dev="sda1" ino=13936 res=0 print_req_error: I/O error, dev loop4, sector 0 audit: type=1800 audit(1671123998.466:134): pid=13364 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name="file0" dev="sda1" ino=13937 res=0 print_req_error: I/O error, dev loop2, sector 0 audit: type=1800 audit(1671123999.566:135): pid=13437 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.1" name="file0" dev="sda1" ino=13889 res=0 audit: type=1800 audit(1671123999.796:136): pid=13438 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name="file0" dev="sda1" ino=13894 res=0 audit: type=1800 audit(1671124000.056:137): pid=13457 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name="bus" dev="sda1" ino=13922 res=0 BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop3 BTRFS info (device loop3): enabling inode map caching BTRFS info (device loop3): using free space tree mkiss: ax0: crc mode is auto. BTRFS error (device loop3): cannot mount because of unsupported optional features (0x800) BTRFS error (device loop3): open_ctree failed mmap: syz-executor.1 (13519) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.txt. mkiss: ax0: crc mode is auto. audit: type=1800 audit(1671124001.297:138): pid=13457 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name="bus" dev="sda1" ino=13922 res=0 audit: type=1800 audit(1671124001.387:139): pid=13564 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name="bus" dev="sda1" ino=14220 res=0 mkiss: ax0: crc mode is auto.