JBD2: Ignoring recovery information on journal jbd2_journal_bmap: journal block not found at offset 32 on loop6-75 JBD2: bad block at offset 32 ocfs2: Mounting device (7,6) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.6.1460/9650 is trying to acquire lock: ffff88807625e650 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_setattr+0xd39/0x1d30 fs/ocfs2/file.c:1263 but task is already holding lock: ffff8880717214a0 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_setattr+0xd2a/0x1d30 fs/ocfs2/file.c:1262 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}: down_write+0x36/0x60 kernel/locking/rwsem.c:1573 ocfs2_try_remove_refcount_tree+0xb3/0x340 fs/ocfs2/refcounttree.c:932 ocfs2_xattr_set+0x617/0x13e0 fs/ocfs2/xattr.c:3673 ocfs2_set_acl+0x4e1/0x590 fs/ocfs2/acl.c:254 ocfs2_iop_set_acl+0x190/0x2b0 fs/ocfs2/acl.c:285 set_posix_acl fs/posix_acl.c:1160 [inline] posix_acl_xattr_set+0x387/0x3f0 fs/posix_acl.c:1189 __vfs_removexattr+0x3b7/0x3f0 fs/xattr.c:479 __vfs_removexattr_locked+0x1e4/0x230 fs/xattr.c:514 vfs_removexattr+0x7d/0x1b0 fs/xattr.c:536 removexattr fs/xattr.c:878 [inline] __do_sys_fremovexattr fs/xattr.c:925 [inline] __se_sys_fremovexattr+0x274/0x370 fs/xattr.c:915 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #2 (&oi->ip_xattr_sem){++++}-{3:3}: down_read+0x42/0x2d0 kernel/locking/rwsem.c:1520 ocfs2_init_acl+0x307/0x770 fs/ocfs2/acl.c:365 ocfs2_mknod+0x15e8/0x25b0 fs/ocfs2/namei.c:410 ocfs2_create+0x1b6/0x4b0 fs/ocfs2/namei.c:674 lookup_open fs/namei.c:3490 [inline] open_last_lookups fs/namei.c:3558 [inline] path_openat+0x1181/0x2ee0 fs/namei.c:3788 do_filp_open+0x1f1/0x430 fs/namei.c:3818 do_sys_openat2+0x150/0x4b0 fs/open.c:1320 do_sys_open fs/open.c:1336 [inline] __do_sys_openat fs/open.c:1352 [inline] __se_sys_openat fs/open.c:1347 [inline] __x64_sys_openat+0x135/0x160 fs/open.c:1347 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #1 (&journal->j_trans_barrier){.+.+}-{3:3}: down_read+0x42/0x2d0 kernel/locking/rwsem.c:1520 ocfs2_start_trans+0x3a4/0x6f0 fs/ocfs2/journal.c:374 ocfs2_mknod+0xf77/0x25b0 fs/ocfs2/namei.c:361 ocfs2_create+0x1b6/0x4b0 fs/ocfs2/namei.c:674 lookup_open fs/namei.c:3490 [inline] open_last_lookups fs/namei.c:3558 [inline] path_openat+0x1181/0x2ee0 fs/namei.c:3788 do_filp_open+0x1f1/0x430 fs/namei.c:3818 do_sys_openat2+0x150/0x4b0 fs/open.c:1320 do_sys_open fs/open.c:1336 [inline] __do_sys_openat fs/open.c:1352 [inline] __se_sys_openat fs/open.c:1347 [inline] __x64_sys_openat+0x135/0x160 fs/open.c:1347 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #0 (sb_internal#2){.+.+}-{0:0}: check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain kernel/locking/lockdep.c:3825 [inline] __lock_acquire+0x2d07/0x7d10 kernel/locking/lockdep.c:5049 lock_acquire+0x1bb/0x4a0 kernel/locking/lockdep.c:5662 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1891 [inline] sb_start_intwrite include/linux/fs.h:2013 [inline] ocfs2_start_trans+0x2a5/0x6f0 fs/ocfs2/journal.c:372 ocfs2_setattr+0xd39/0x1d30 fs/ocfs2/file.c:1263 notify_change+0xc74/0xf40 fs/attr.c:499 chown_common+0x4a0/0x660 fs/open.c:736 vfs_fchown fs/open.c:804 [inline] ksys_fchown+0xe2/0x150 fs/open.c:815 __do_sys_fchown fs/open.c:823 [inline] __se_sys_fchown fs/open.c:821 [inline] __x64_sys_fchown+0x76/0x80 fs/open.c:821 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 other info that might help us debug this: Chain exists of: sb_internal#2 --> &oi->ip_xattr_sem --> &ocfs2_file_ip_alloc_sem_key Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ocfs2_file_ip_alloc_sem_key); lock(&oi->ip_xattr_sem); lock(&ocfs2_file_ip_alloc_sem_key); lock(sb_internal#2); *** DEADLOCK *** 3 locks held by syz.6.1460/9650: #0: ffff88807625e460 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write_file+0x5c/0x200 fs/namespace.c:446 #1: ffff888071721808 (&type->i_mutex_dir_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff888071721808 (&type->i_mutex_dir_key#10){+.+.}-{3:3}, at: chown_common+0x33a/0x660 fs/open.c:726 #2: ffff8880717214a0 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_setattr+0xd2a/0x1d30 fs/ocfs2/file.c:1262 stack backtrace: CPU: 0 PID: 9650 Comm: syz.6.1460 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106 check_noncircular+0x296/0x330 kernel/locking/lockdep.c:2170 check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain kernel/locking/lockdep.c:3825 [inline] __lock_acquire+0x2d07/0x7d10 kernel/locking/lockdep.c:5049 lock_acquire+0x1bb/0x4a0 kernel/locking/lockdep.c:5662 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1891 [inline] sb_start_intwrite include/linux/fs.h:2013 [inline] ocfs2_start_trans+0x2a5/0x6f0 fs/ocfs2/journal.c:372 ocfs2_setattr+0xd39/0x1d30 fs/ocfs2/file.c:1263 notify_change+0xc74/0xf40 fs/attr.c:499 chown_common+0x4a0/0x660 fs/open.c:736 vfs_fchown fs/open.c:804 [inline] ksys_fchown+0xe2/0x150 fs/open.c:815 __do_sys_fchown fs/open.c:823 [inline] __se_sys_fchown fs/open.c:821 [inline] __x64_sys_fchown+0x76/0x80 fs/open.c:821 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f015039ce59 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:00007f015131c028 EFLAGS: 00000246 ORIG_RAX: 000000000000005d RAX: ffffffffffffffda RBX: 00007f0150615fa0 RCX: 00007f015039ce59 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000004 RBP: 00007f0150432d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f0150616038 R14: 00007f0150615fa0 R15: 00007fffd6d6f788