ocfs2: Mounting device (7,2) on (node local, slot 0) with ordered data mode. (syz.2.2077,9759,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xc2d589a7, computed 0x6a4501d0. Applying ECC. ====================================================== WARNING: possible circular locking dependency detected 5.15.167-syzkaller #0 Not tainted ------------------------------------------------------ syz.2.2077/9759 is trying to acquire lock: ffff0000ed9214a0 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_lock_global_qf+0x1d4/0x260 fs/ocfs2/quota_global.c:314 but task is already holding lock: ffff0000ed921808 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline] ffff0000ed921808 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{3:3}, at: ocfs2_lock_global_qf+0x1b8/0x260 fs/ocfs2/quota_global.c:313 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #6 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{3:3}: down_write+0xbc/0x12c kernel/locking/rwsem.c:1551 inode_lock include/linux/fs.h:789 [inline] ocfs2_lock_global_qf+0x1b8/0x260 fs/ocfs2/quota_global.c:313 ocfs2_acquire_dquot+0x258/0xa90 fs/ocfs2/quota_global.c:811 dqget+0x664/0xd0c fs/quota/dquot.c:986 ocfs2_setattr+0xc7c/0x191c fs/ocfs2/file.c:1243 notify_change+0xa34/0xcf8 fs/attr.c:505 chown_common+0x4ac/0x74c fs/open.c:680 vfs_fchown fs/open.c:748 [inline] ksys_fchown+0xe0/0x158 fs/open.c:759 __do_sys_fchown fs/open.c:767 [inline] __se_sys_fchown fs/open.c:765 [inline] __arm64_sys_fchown+0x7c/0x94 fs/open.c:765 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #5 (&dquot->dq_lock){+.+.}-{3:3}: __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743 dquot_commit+0x54/0x240 fs/quota/dquot.c:507 ext4_write_dquot+0x1b4/0x314 fs/ext4/super.c:6172 ext4_mark_dquot_dirty+0xe8/0x140 fs/ext4/super.c:6232 mark_dquot_dirty fs/quota/dquot.c:372 [inline] mark_all_dquot_dirty+0x108/0x424 fs/quota/dquot.c:412 __dquot_free_space+0x878/0xce8 fs/quota/dquot.c:1940 dquot_free_space_nodirty include/linux/quotaops.h:376 [inline] dquot_free_space include/linux/quotaops.h:381 [inline] dquot_free_block include/linux/quotaops.h:392 [inline] ext4_mb_clear_bb fs/ext4/mballoc.c:6158 [inline] ext4_free_blocks+0x1c0c/0x2bf0 fs/ext4/mballoc.c:6288 ext4_remove_blocks fs/ext4/extents.c:2519 [inline] ext4_ext_rm_leaf fs/ext4/extents.c:2685 [inline] ext4_ext_remove_space+0x1c48/0x4254 fs/ext4/extents.c:2933 ext4_ext_truncate+0x188/0x250 fs/ext4/extents.c:4450 ext4_truncate+0x9c4/0x1058 fs/ext4/inode.c:4249 ext4_process_orphan+0x180/0x2b8 fs/ext4/orphan.c:339 ext4_orphan_cleanup+0x8bc/0x1048 fs/ext4/orphan.c:474 ext4_fill_super+0x8044/0x8768 fs/ext4/super.c:4974 mount_bdev+0x274/0x370 fs/super.c:1398 ext4_mount+0x44/0x58 fs/ext4/super.c:6602 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1528 do_new_mount+0x278/0x8fc fs/namespace.c:3005 path_mount+0x594/0x101c fs/namespace.c:3335 do_mount fs/namespace.c:3348 [inline] __do_sys_mount fs/namespace.c:3556 [inline] __se_sys_mount fs/namespace.c:3533 [inline] __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3533 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #4 (&ei->i_data_sem){++++}-{3:3}: down_write+0xbc/0x12c kernel/locking/rwsem.c:1551 ext4_map_blocks+0x830/0x1a44 fs/ext4/inode.c:665 mpage_map_one_extent fs/ext4/inode.c:2407 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2460 [inline] ext4_writepages+0x12c0/0x36fc fs/ext4/inode.c:2828 do_writepages+0x39c/0x5ec mm/page-writeback.c:2386 __writeback_single_inode+0x148/0x13a4 fs/fs-writeback.c:1647 writeback_sb_inodes+0x94c/0x1654 fs/fs-writeback.c:1930 __writeback_inodes_wb+0x110/0x39c fs/fs-writeback.c:2001 wb_writeback+0x410/0xfc8 fs/fs-writeback.c:2106 wb_check_background_flush fs/fs-writeback.c:2172 [inline] wb_do_writeback fs/fs-writeback.c:2260 [inline] wb_workfn+0xc44/0x1070 fs/fs-writeback.c:2288 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310 worker_thread+0x910/0x1034 kernel/workqueue.c:2457 kthread+0x37c/0x45c kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 -> #3 (jbd2_handle){++++}-{0:0}: start_this_handle+0xfc0/0x12a4 fs/jbd2/transaction.c:464 jbd2__journal_start+0x29c/0x7b4 fs/jbd2/transaction.c:521 jbd2_journal_start+0x3c/0x4c fs/jbd2/transaction.c:560 ocfs2_start_trans+0x468/0x804 fs/ocfs2/journal.c:354 ocfs2_modify_bh+0xe4/0x498 fs/ocfs2/quota_local.c:101 ocfs2_local_read_info+0xec8/0x1550 fs/ocfs2/quota_local.c:766 dquot_load_quota_sb+0x6f0/0xb1c fs/quota/dquot.c:2461 dquot_load_quota_inode+0x280/0x4f4 fs/quota/dquot.c:2498 ocfs2_enable_quotas+0x17c/0x3cc fs/ocfs2/super.c:927 ocfs2_fill_super+0x3698/0x498c fs/ocfs2/super.c:1140 mount_bdev+0x274/0x370 fs/super.c:1398 ocfs2_mount+0x44/0x58 fs/ocfs2/super.c:1187 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1528 do_new_mount+0x278/0x8fc fs/namespace.c:3005 path_mount+0x594/0x101c fs/namespace.c:3335 do_mount fs/namespace.c:3348 [inline] __do_sys_mount fs/namespace.c:3556 [inline] __se_sys_mount fs/namespace.c:3533 [inline] __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3533 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #2 (&journal->j_trans_barrier){.+.+}-{3:3}: down_read+0xc0/0x398 kernel/locking/rwsem.c:1498 ocfs2_start_trans+0x45c/0x804 fs/ocfs2/journal.c:352 ocfs2_modify_bh+0xe4/0x498 fs/ocfs2/quota_local.c:101 ocfs2_local_read_info+0xec8/0x1550 fs/ocfs2/quota_local.c:766 dquot_load_quota_sb+0x6f0/0xb1c fs/quota/dquot.c:2461 dquot_load_quota_inode+0x280/0x4f4 fs/quota/dquot.c:2498 ocfs2_enable_quotas+0x17c/0x3cc fs/ocfs2/super.c:927 ocfs2_fill_super+0x3698/0x498c fs/ocfs2/super.c:1140 mount_bdev+0x274/0x370 fs/super.c:1398 ocfs2_mount+0x44/0x58 fs/ocfs2/super.c:1187 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1528 do_new_mount+0x278/0x8fc fs/namespace.c:3005 path_mount+0x594/0x101c fs/namespace.c:3335 do_mount fs/namespace.c:3348 [inline] __do_sys_mount fs/namespace.c:3556 [inline] __se_sys_mount fs/namespace.c:3533 [inline] __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3533 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #1 (sb_internal#5){.+.+}-{0:0}: percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1811 [inline] sb_start_intwrite include/linux/fs.h:1928 [inline] ocfs2_start_trans+0x2dc/0x804 fs/ocfs2/journal.c:350 ocfs2_orphan_for_truncate fs/ocfs2/file.c:392 [inline] ocfs2_truncate_file+0x5f8/0x14dc fs/ocfs2/file.c:496 ocfs2_setattr+0x1244/0x191c fs/ocfs2/file.c:1212 notify_change+0xa34/0xcf8 fs/attr.c:505 do_truncate+0x1c0/0x28c fs/open.c:65 handle_truncate fs/namei.c:3265 [inline] do_open fs/namei.c:3612 [inline] path_openat+0x20c4/0x26cc fs/namei.c:3742 do_filp_open+0x1a8/0x3b4 fs/namei.c:3769 do_sys_openat2+0x128/0x3e0 fs/open.c:1253 do_sys_open fs/open.c:1269 [inline] __do_sys_openat fs/open.c:1285 [inline] __se_sys_openat fs/open.c:1280 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1280 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #0 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}: check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain kernel/locking/lockdep.c:3788 [inline] __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623 down_write+0xbc/0x12c kernel/locking/rwsem.c:1551 ocfs2_lock_global_qf+0x1d4/0x260 fs/ocfs2/quota_global.c:314 ocfs2_acquire_dquot+0x258/0xa90 fs/ocfs2/quota_global.c:811 dqget+0x664/0xd0c fs/quota/dquot.c:986 ocfs2_setattr+0xc7c/0x191c fs/ocfs2/file.c:1243 notify_change+0xa34/0xcf8 fs/attr.c:505 chown_common+0x4ac/0x74c fs/open.c:680 vfs_fchown fs/open.c:748 [inline] ksys_fchown+0xe0/0x158 fs/open.c:759 __do_sys_fchown fs/open.c:767 [inline] __se_sys_fchown fs/open.c:765 [inline] __arm64_sys_fchown+0x7c/0x94 fs/open.c:765 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 other info that might help us debug this: Chain exists of: &ocfs2_quota_ip_alloc_sem_key --> &dquot->dq_lock --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7); lock(&dquot->dq_lock); lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7); lock(&ocfs2_quota_ip_alloc_sem_key); *** DEADLOCK *** 4 locks held by syz.2.2077/9759: #0: ffff0000ccd6a460 (sb_writers#26){.+.+}-{0:0}, at: mnt_want_write_file+0x64/0x1e8 fs/namespace.c:421 #1: ffff0000dda942c8 (&type->i_mutex_dir_key#20){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline] #1: ffff0000dda942c8 (&type->i_mutex_dir_key#20){+.+.}-{3:3}, at: chown_common+0x3f8/0x74c fs/open.c:674 #2: ffff0000e5d240a8 (&dquot->dq_lock){+.+.}-{3:3}, at: ocfs2_acquire_dquot+0x24c/0xa90 fs/ocfs2/quota_global.c:806 #3: ffff0000ed921808 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline] #3: ffff0000ed921808 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{3:3}, at: ocfs2_lock_global_qf+0x1b8/0x260 fs/ocfs2/quota_global.c:313 stack backtrace: CPU: 0 PID: 9759 Comm: syz.2.2077 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2011 check_noncircular+0x2cc/0x378 kernel/locking/lockdep.c:2133 check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain kernel/locking/lockdep.c:3788 [inline] __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623 down_write+0xbc/0x12c kernel/locking/rwsem.c:1551 ocfs2_lock_global_qf+0x1d4/0x260 fs/ocfs2/quota_global.c:314 ocfs2_acquire_dquot+0x258/0xa90 fs/ocfs2/quota_global.c:811 dqget+0x664/0xd0c fs/quota/dquot.c:986 ocfs2_setattr+0xc7c/0x191c fs/ocfs2/file.c:1243 notify_change+0xa34/0xcf8 fs/attr.c:505 chown_common+0x4ac/0x74c fs/open.c:680 vfs_fchown fs/open.c:748 [inline] ksys_fchown+0xe0/0x158 fs/open.c:759 __do_sys_fchown fs/open.c:767 [inline] __se_sys_fchown fs/open.c:765 [inline] __arm64_sys_fchown+0x7c/0x94 fs/open.c:765 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 (syz.2.2077,9759,1):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0x7d05e7ff, computed 0x7dc2e7ff. Applying ECC. (syz.2.2077,9759,0):ocfs2_block_check_validate:416 ERROR: Fixed CRC32 failed: stored: 0x7d05e7ff, computed 0x7dc2e7ff (syz.2.2077,9759,0):ocfs2_read_quota_phys_block:160 ERROR: status = -5 (syz.2.2077,9759,0):ocfs2_quota_read:201 ERROR: status = -5 Quota error (device loop2): find_tree_dqentry: Can't read quota tree block 2 Quota error (device loop2): qtree_read_dquot: Can't read quota structure for id 60929 (syz.2.2077,9759,0):ocfs2_acquire_dquot:873 ERROR: status = -5