ocfs2: Mounting device (7,7) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.13.0-rc6-next-20250107-syzkaller #0 Not tainted ------------------------------------------------------ syz.7.3684/18600 is trying to acquire lock: ffff88805f6e0660 (&ocfs2_quota_ip_alloc_sem_key){++++}-{4:4}, at: ocfs2_lock_global_qf+0x225/0x2b0 fs/ocfs2/quota_global.c:314 but task is already holding lock: ffff88805f6e09c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:865 [inline] ffff88805f6e09c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{4:4}, at: ocfs2_lock_global_qf+0x206/0x2b0 fs/ocfs2/quota_global.c:313 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_write+0x99/0x220 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:865 [inline] ocfs2_lock_global_qf+0x206/0x2b0 fs/ocfs2/quota_global.c:313 ocfs2_acquire_dquot+0x2b0/0xb70 fs/ocfs2/quota_global.c:823 dqget+0x770/0xeb0 fs/quota/dquot.c:977 __dquot_initialize+0x2e3/0xec0 fs/quota/dquot.c:1505 ocfs2_get_init_inode+0x158/0x1d0 fs/ocfs2/namei.c:202 ocfs2_symlink+0xdbc/0x2d80 fs/ocfs2/namei.c:1888 vfs_symlink+0x137/0x2e0 fs/namei.c:4669 do_symlinkat+0x222/0x3a0 fs/namei.c:4695 __do_sys_symlink fs/namei.c:4716 [inline] __se_sys_symlink fs/namei.c:4714 [inline] __x64_sys_symlink+0x7a/0x90 fs/namei.c:4714 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 -> #3 (&dquot->dq_lock){+.+.}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 __mutex_lock_common kernel/locking/mutex.c:585 [inline] __mutex_lock+0x19c/0x1010 kernel/locking/mutex.c:730 wait_on_dquot fs/quota/dquot.c:354 [inline] dqget+0x6e6/0xeb0 fs/quota/dquot.c:972 __dquot_initialize+0x2e3/0xec0 fs/quota/dquot.c:1505 ocfs2_get_init_inode+0x158/0x1d0 fs/ocfs2/namei.c:202 ocfs2_symlink+0xdbc/0x2d80 fs/ocfs2/namei.c:1888 vfs_symlink+0x137/0x2e0 fs/namei.c:4669 do_symlinkat+0x222/0x3a0 fs/namei.c:4695 __do_sys_symlink fs/namei.c:4716 [inline] __se_sys_symlink fs/namei.c:4714 [inline] __x64_sys_symlink+0x7a/0x90 fs/namei.c:4714 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 -> #2 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_write+0x99/0x220 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:865 [inline] ocfs2_remove_inode fs/ocfs2/inode.c:655 [inline] ocfs2_wipe_inode fs/ocfs2/inode.c:818 [inline] ocfs2_delete_inode fs/ocfs2/inode.c:1079 [inline] ocfs2_evict_inode+0x209f/0x4630 fs/ocfs2/inode.c:1216 evict+0x4e8/0x9a0 fs/inode.c:796 d_delete_notify include/linux/fsnotify.h:376 [inline] vfs_rmdir+0x3d7/0x510 fs/namei.c:4407 do_rmdir+0x3b5/0x580 fs/namei.c:4453 __do_sys_rmdir fs/namei.c:4472 [inline] __se_sys_rmdir fs/namei.c:4470 [inline] __x64_sys_rmdir+0x47/0x50 fs/namei.c:4470 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 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_write+0x99/0x220 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:865 [inline] ocfs2_del_inode_from_orphan+0x159/0x800 fs/ocfs2/namei.c:2728 ocfs2_dio_end_io_write fs/ocfs2/aops.c:2310 [inline] ocfs2_dio_end_io+0x55b/0x1250 fs/ocfs2/aops.c:2408 dio_complete+0x251/0x6b0 fs/direct-io.c:281 __blockdev_direct_IO+0x3eb6/0x4890 fs/direct-io.c:1303 ocfs2_direct_IO+0x255/0x2c0 fs/ocfs2/aops.c:2445 generic_file_direct_write+0x1e6/0x400 mm/filemap.c:4036 __generic_file_write_iter+0x126/0x230 mm/filemap.c:4200 ocfs2_file_write_iter+0x19af/0x2180 fs/ocfs2/file.c:2469 do_iter_readv_writev+0x71a/0x9d0 vfs_writev+0x38b/0xbc0 fs/read_write.c:1050 do_pwritev fs/read_write.c:1146 [inline] __do_sys_pwritev2 fs/read_write.c:1204 [inline] __se_sys_pwritev2+0x196/0x2b0 fs/read_write.c:1195 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 (&ocfs2_quota_ip_alloc_sem_key){++++}-{4:4}: check_prev_add kernel/locking/lockdep.c:3163 [inline] check_prevs_add kernel/locking/lockdep.c:3282 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3906 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_write+0x99/0x220 kernel/locking/rwsem.c:1577 ocfs2_lock_global_qf+0x225/0x2b0 fs/ocfs2/quota_global.c:314 ocfs2_acquire_dquot+0x2b0/0xb70 fs/ocfs2/quota_global.c:823 dqget+0x770/0xeb0 fs/quota/dquot.c:977 __dquot_initialize+0x2e3/0xec0 fs/quota/dquot.c:1505 ocfs2_get_init_inode+0x158/0x1d0 fs/ocfs2/namei.c:202 ocfs2_symlink+0xdbc/0x2d80 fs/ocfs2/namei.c:1888 vfs_symlink+0x137/0x2e0 fs/namei.c:4669 do_symlinkat+0x222/0x3a0 fs/namei.c:4695 __do_sys_symlink fs/namei.c:4716 [inline] __se_sys_symlink fs/namei.c:4714 [inline] __x64_sys_symlink+0x7a/0x90 fs/namei.c:4714 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: &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 *** 5 locks held by syz.7.3684/18600: #0: ffff88805677e420 (sb_writers#13){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:547 #1: ffff88805f6289c0 (&type->i_mutex_dir_key#8/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:900 [inline] #1: ffff88805f6289c0 (&type->i_mutex_dir_key#8/1){+.+.}-{4:4}, at: filename_create+0x260/0x540 fs/namei.c:4080 #2: ffff88805b6f42c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:865 [inline] #2: ffff88805b6f42c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x192/0x4e70 fs/ocfs2/suballoc.c:786 #3: ffff8880579ca0a8 (&dquot->dq_lock){+.+.}-{4:4}, at: ocfs2_acquire_dquot+0x2a3/0xb70 fs/ocfs2/quota_global.c:818 #4: ffff88805f6e09c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:865 [inline] #4: ffff88805f6e09c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{4:4}, at: ocfs2_lock_global_qf+0x206/0x2b0 fs/ocfs2/quota_global.c:313 stack backtrace: CPU: 1 UID: 0 PID: 18600 Comm: syz.7.3684 Not tainted 6.13.0-rc6-next-20250107-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2076 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2208 check_prev_add kernel/locking/lockdep.c:3163 [inline] check_prevs_add kernel/locking/lockdep.c:3282 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3906 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_write+0x99/0x220 kernel/locking/rwsem.c:1577 ocfs2_lock_global_qf+0x225/0x2b0 fs/ocfs2/quota_global.c:314 ocfs2_acquire_dquot+0x2b0/0xb70 fs/ocfs2/quota_global.c:823 dqget+0x770/0xeb0 fs/quota/dquot.c:977 __dquot_initialize+0x2e3/0xec0 fs/quota/dquot.c:1505 ocfs2_get_init_inode+0x158/0x1d0 fs/ocfs2/namei.c:202 ocfs2_symlink+0xdbc/0x2d80 fs/ocfs2/namei.c:1888 vfs_symlink+0x137/0x2e0 fs/namei.c:4669 do_symlinkat+0x222/0x3a0 fs/namei.c:4695 __do_sys_symlink fs/namei.c:4716 [inline] __se_sys_symlink fs/namei.c:4714 [inline] __x64_sys_symlink+0x7a/0x90 fs/namei.c:4714 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: 0033:0x7f1ec5185d29 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:00007f1ec6062038 EFLAGS: 00000246 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 00007f1ec5375fa0 RCX: 00007f1ec5185d29 RDX: 0000000000000000 RSI: 0000000020000cc0 RDI: 0000000020000dc0 RBP: 00007f1ec5201b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f1ec5375fa0 R15: 00007ffd66000048 (syz.7.3684,18600,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0x2c7b5077, computed 0x28030c75. Applying ECC. (syz.7.3684,18600,0):ocfs2_block_check_validate:416 ERROR: Fixed CRC32 failed: stored: 0x2c7b5077, computed 0x28d1d8ae (syz.7.3684,18600,0):ocfs2_read_quota_phys_block:160 ERROR: status = -5 (syz.7.3684,18600,0):ocfs2_quota_read:201 ERROR: status = -5 Quota error (device loop7): find_tree_dqentry: Can't read quota tree block 5 Quota error (device loop7): qtree_read_dquot: Can't read quota structure for id 0 (syz.7.3684,18600,0):ocfs2_acquire_dquot:885 ERROR: status = -5 (syz.7.3684,18600,0):ocfs2_symlink:1892 ERROR: status = -5 (syz.7.3684,18600,0):ocfs2_symlink:2078 ERROR: status = -5