loop0: detected capacity change from 0 to 32768 JBD2: Ignoring recovery information on journal jbd2_journal_bmap: journal block not found at offset 32 on loop0-75 JBD2: bad block at offset 32 ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.0.0/5315 is trying to acquire lock: ffff88801bb58650 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_setattr+0x9eb/0x1d10 fs/ocfs2/file.c:1275 but task is already holding lock: ffff888013647658 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x9dc/0x1d10 fs/ocfs2/file.c:1274 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&oi->ip_alloc_sem){+.+.}-{4:4}: down_write+0x96/0x200 kernel/locking/rwsem.c:1631 ocfs2_try_remove_refcount_tree+0xb6/0x360 fs/ocfs2/refcounttree.c:932 ocfs2_xattr_set+0x639/0x13a0 fs/ocfs2/xattr.c:3713 ocfs2_set_acl+0x6fd/0x7b0 fs/ocfs2/acl.c:255 ocfs2_iop_set_acl+0x1b1/0x2b0 fs/ocfs2/acl.c:287 set_posix_acl fs/posix_acl.c:960 [inline] vfs_remove_acl+0x55c/0x850 fs/posix_acl.c:1247 ovl_do_remove_acl fs/overlayfs/overlayfs.h:362 [inline] ovl_workdir_create+0x53a/0x8b0 fs/overlayfs/super.c:369 ovl_make_workdir fs/overlayfs/super.c:678 [inline] ovl_get_workdir+0x339/0x1980 fs/overlayfs/super.c:836 ovl_fill_super_creds fs/overlayfs/super.c:1449 [inline] ovl_fill_super+0x1702/0x4360 fs/overlayfs/super.c:1561 vfs_get_super fs/super.c:1405 [inline] get_tree_nodev+0xbb/0x150 fs/super.c:1424 vfs_get_tree+0x92/0x2a0 fs/super.c:1947 fc_mount fs/namespace.c:1198 [inline] do_new_mount_fc fs/namespace.c:3772 [inline] do_new_mount+0x319/0xdc0 fs/namespace.c:3848 do_mount fs/namespace.c:4181 [inline] __do_sys_mount fs/namespace.c:4397 [inline] __se_sys_mount+0x31d/0x420 fs/namespace.c:4374 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&oi->ip_xattr_sem){++++}-{4:4}: down_read+0x4a/0x330 kernel/locking/rwsem.c:1574 ocfs2_init_acl+0x2fd/0x7e0 fs/ocfs2/acl.c:367 ocfs2_mknod+0x166a/0x2240 fs/ocfs2/namei.c:414 ocfs2_mkdir+0x180/0x430 fs/ocfs2/namei.c:660 vfs_mkdir+0x40c/0x620 fs/namei.c:5410 filename_mkdirat+0x285/0x510 fs/namei.c:5443 __do_sys_mkdirat fs/namei.c:5464 [inline] __se_sys_mkdirat+0x35/0x150 fs/namei.c:5461 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&journal->j_trans_barrier){.+.+}-{4:4}: down_read+0x4a/0x330 kernel/locking/rwsem.c:1574 ocfs2_start_trans+0x3ae/0x700 fs/ocfs2/journal.c:369 ocfs2_mknod+0x116a/0x2240 fs/ocfs2/namei.c:365 ocfs2_mkdir+0x180/0x430 fs/ocfs2/namei.c:660 vfs_mkdir+0x40c/0x620 fs/namei.c:5410 filename_mkdirat+0x285/0x510 fs/namei.c:5443 __do_sys_mkdirat fs/namei.c:5464 [inline] __se_sys_mkdirat+0x35/0x150 fs/namei.c:5461 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (sb_internal#2){.+.+}-{0:0}: check_prev_add kernel/locking/lockdep.c:3181 [inline] check_prevs_add kernel/locking/lockdep.c:3300 [inline] validate_chain kernel/locking/lockdep.c:3924 [inline] __lock_acquire+0x1520/0x2cf0 kernel/locking/lockdep.c:5253 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5886 percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline] percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline] __sb_start_write include/linux/fs/super.h:19 [inline] sb_start_intwrite include/linux/fs/super.h:177 [inline] ocfs2_start_trans+0x2ac/0x700 fs/ocfs2/journal.c:367 ocfs2_setattr+0x9eb/0x1d10 fs/ocfs2/file.c:1275 notify_change+0xbba/0xea0 fs/attr.c:556 ovl_do_notify_change fs/overlayfs/overlayfs.h:209 [inline] ovl_workdir_create+0x69c/0x8b0 fs/overlayfs/super.c:379 ovl_make_workdir fs/overlayfs/super.c:678 [inline] ovl_get_workdir+0x339/0x1980 fs/overlayfs/super.c:836 ovl_fill_super_creds fs/overlayfs/super.c:1449 [inline] ovl_fill_super+0x1702/0x4360 fs/overlayfs/super.c:1561 vfs_get_super fs/super.c:1405 [inline] get_tree_nodev+0xbb/0x150 fs/super.c:1424 vfs_get_tree+0x92/0x2a0 fs/super.c:1947 fc_mount fs/namespace.c:1198 [inline] do_new_mount_fc fs/namespace.c:3772 [inline] do_new_mount+0x319/0xdc0 fs/namespace.c:3848 do_mount fs/namespace.c:4181 [inline] __do_sys_mount fs/namespace.c:4397 [inline] __se_sys_mount+0x31d/0x420 fs/namespace.c:4374 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: sb_internal#2 --> &oi->ip_xattr_sem --> &oi->ip_alloc_sem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&oi->ip_alloc_sem); lock(&oi->ip_xattr_sem); lock(&oi->ip_alloc_sem); rlock(sb_internal#2); *** DEADLOCK *** locks held by syz.0.0/5315: 4, last CPU#0: #0: ffff8880426160e8 (&type->s_umount_key#52/1){+.+.}-{4:4}, at: alloc_super fs/super.c:365 [inline] #0: ffff8880426160e8 (&type->s_umount_key#52/1){+.+.}-{4:4}, at: sget_fc+0x97c/0x1a40 fs/super.c:889 #1: ffff88801bb58460 (sb_writers#11){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:494 #2: ffff8880136479a0 (&sb->s_type->i_mutex_key#24){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1025 [inline] #2: ffff8880136479a0 (&sb->s_type->i_mutex_key#24){+.+.}-{4:4}, at: ovl_workdir_create+0x63d/0x8b0 fs/overlayfs/super.c:378 #3: ffff888013647658 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x9dc/0x1d10 fs/ocfs2/file.c:1274 stack backtrace: CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_circular_bug+0x2e1/0x300 kernel/locking/lockdep.c:2059 check_noncircular+0x12e/0x150 kernel/locking/lockdep.c:2191 check_prev_add kernel/locking/lockdep.c:3181 [inline] check_prevs_add kernel/locking/lockdep.c:3300 [inline] validate_chain kernel/locking/lockdep.c:3924 [inline] __lock_acquire+0x1520/0x2cf0 kernel/locking/lockdep.c:5253 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5886 percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline] percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline] __sb_start_write include/linux/fs/super.h:19 [inline] sb_start_intwrite include/linux/fs/super.h:177 [inline] ocfs2_start_trans+0x2ac/0x700 fs/ocfs2/journal.c:367 ocfs2_setattr+0x9eb/0x1d10 fs/ocfs2/file.c:1275 notify_change+0xbba/0xea0 fs/attr.c:556 ovl_do_notify_change fs/overlayfs/overlayfs.h:209 [inline] ovl_workdir_create+0x69c/0x8b0 fs/overlayfs/super.c:379 ovl_make_workdir fs/overlayfs/super.c:678 [inline] ovl_get_workdir+0x339/0x1980 fs/overlayfs/super.c:836 ovl_fill_super_creds fs/overlayfs/super.c:1449 [inline] ovl_fill_super+0x1702/0x4360 fs/overlayfs/super.c:1561 vfs_get_super fs/super.c:1405 [inline] get_tree_nodev+0xbb/0x150 fs/super.c:1424 vfs_get_tree+0x92/0x2a0 fs/super.c:1947 fc_mount fs/namespace.c:1198 [inline] do_new_mount_fc fs/namespace.c:3772 [inline] do_new_mount+0x319/0xdc0 fs/namespace.c:3848 do_mount fs/namespace.c:4181 [inline] __do_sys_mount fs/namespace.c:4397 [inline] __se_sys_mount+0x31d/0x420 fs/namespace.c:4374 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe770b9e0d9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe771a0cfe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fe770e25fa0 RCX: 00007fe770b9e0d9 RDX: 0000200000000b80 RSI: 0000200000000340 RDI: 0000000000000000 RBP: 00007fe770c35024 R08: 0000200000000000 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe770e26038 R14: 00007fe770e25fa0 R15: 00007ffcce97a918 overlayfs: upper fs does not support tmpfile. overlayfs: upper fs does not support RENAME_WHITEOUT. OCFS2: ERROR (device loop0): int ocfs2_claim_suballoc_bits(struct ocfs2_alloc_context *, handle_t *, u32, u32, struct ocfs2_suballoc_result *): Chain allocator dinode 71 has 16777215 used bits but only 1024 total On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. OCFS2: File system is now read-only. (syz.0.0,5315,0):ocfs2_claim_suballoc_bits:2198 ERROR: status = -30 (syz.0.0,5315,0):__ocfs2_claim_clusters:2579 ERROR: status = -30 (syz.0.0,5315,0):__ocfs2_claim_clusters:2587 ERROR: status = -30 (syz.0.0,5315,0):ocfs2_block_group_alloc_contig:553 ERROR: status = -30 (syz.0.0,5315,0):ocfs2_block_group_alloc:827 ERROR: status = -30 (syz.0.0,5315,0):ocfs2_block_group_alloc:880 ERROR: status = -30 (syz.0.0,5315,0):ocfs2_reserve_suballoc_bits:955 ERROR: status = -30 (syz.0.0,5315,0):ocfs2_reserve_suballoc_bits:972 ERROR: status = -30 (syz.0.0,5315,0):ocfs2_reserve_new_metadata_blocks:1112 ERROR: status = -30 (syz.0.0,5315,0):ocfs2_reserve_new_metadata_blocks:1135 ERROR: status = -30 (syz.0.0,5315,0):ocfs2_init_xattr_set_ctxt:3324 ERROR: status = -30 (syz.0.0,5315,0):ocfs2_xattr_set:3681 ERROR: status = -30 overlayfs: failed to set xattr on upper overlayfs: ...falling back to redirect_dir=nofollow. overlayfs: ...falling back to index=off. overlayfs: ...falling back to uuid=null. overlayfs: upper fs missing required features.