(syz.2.2618,17366,1):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,2) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.6.93-syzkaller #0 Not tainted ------------------------------------------------------ syz.2.2618/17366 is trying to acquire lock: ffff88805cb4ed98 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:804 [inline] ffff88805cb4ed98 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x165/0x4360 fs/ocfs2/suballoc.c:782 but task is already holding lock: ffff88805ecace38 (&oi->ip_xattr_sem){++++}-{3:3}, at: ocfs2_xattr_set+0x410/0x11f0 fs/ocfs2/xattr.c:3583 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #5 (&oi->ip_xattr_sem){++++}-{3:3}: down_read+0x46/0x2e0 kernel/locking/rwsem.c:1520 ocfs2_init_acl+0x2fa/0x720 fs/ocfs2/acl.c:366 ocfs2_mknod+0x12e5/0x20f0 fs/ocfs2/namei.c:410 vfs_mknod+0x32b/0x360 fs/namei.c:3991 do_mknodat+0x37e/0x4f0 fs/namei.c:-1 __do_sys_mknod fs/namei.c:4074 [inline] __se_sys_mknod fs/namei.c:4072 [inline] __x64_sys_mknod+0x8e/0xa0 fs/namei.c:4072 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #4 (jbd2_handle){++++}-{0:0}: start_this_handle+0x1e9d/0x20c0 fs/jbd2/transaction.c:448 jbd2__journal_start+0x2bb/0x5b0 fs/jbd2/transaction.c:505 jbd2_journal_start+0x2a/0x40 fs/jbd2/transaction.c:544 ocfs2_start_trans+0x376/0x6c0 fs/ocfs2/journal.c:374 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:681 [inline] ocfs2_reserve_suballoc_bits+0x715/0x4360 fs/ocfs2/suballoc.c:828 ocfs2_reserve_new_metadata_blocks+0x404/0x940 fs/ocfs2/suballoc.c:978 ocfs2_expand_inline_dir fs/ocfs2/dir.c:2839 [inline] ocfs2_extend_dir+0xc60/0x4760 fs/ocfs2/dir.c:3201 ocfs2_prepare_dir_for_insert+0x2fc7/0x5480 fs/ocfs2/dir.c:4322 ocfs2_mknod+0x818/0x20f0 fs/ocfs2/namei.c:294 vfs_mknod+0x32b/0x360 fs/namei.c:3991 do_mknodat+0x37e/0x4f0 fs/namei.c:-1 __do_sys_mknod fs/namei.c:4074 [inline] __se_sys_mknod fs/namei.c:4072 [inline] __x64_sys_mknod+0x8e/0xa0 fs/namei.c:4072 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #3 (&journal->j_trans_barrier){.+.+}-{3:3}: down_read+0x46/0x2e0 kernel/locking/rwsem.c:1520 ocfs2_start_trans+0x36a/0x6c0 fs/ocfs2/journal.c:372 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:681 [inline] ocfs2_reserve_suballoc_bits+0x715/0x4360 fs/ocfs2/suballoc.c:828 ocfs2_reserve_new_metadata_blocks+0x404/0x940 fs/ocfs2/suballoc.c:978 ocfs2_expand_inline_dir fs/ocfs2/dir.c:2839 [inline] ocfs2_extend_dir+0xc60/0x4760 fs/ocfs2/dir.c:3201 ocfs2_prepare_dir_for_insert+0x2fc7/0x5480 fs/ocfs2/dir.c:4322 ocfs2_mknod+0x818/0x20f0 fs/ocfs2/namei.c:294 vfs_mknod+0x32b/0x360 fs/namei.c:3991 do_mknodat+0x37e/0x4f0 fs/namei.c:-1 __do_sys_mknod fs/namei.c:4074 [inline] __se_sys_mknod fs/namei.c:4072 [inline] __x64_sys_mknod+0x8e/0xa0 fs/namei.c:4072 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #2 (sb_internal#3){.+.+}-{0:0}: percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1633 [inline] sb_start_intwrite include/linux/fs.h:1755 [inline] ocfs2_start_trans+0x26b/0x6c0 fs/ocfs2/journal.c:370 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:681 [inline] ocfs2_reserve_suballoc_bits+0x715/0x4360 fs/ocfs2/suballoc.c:828 ocfs2_reserve_new_metadata_blocks+0x404/0x940 fs/ocfs2/suballoc.c:978 ocfs2_expand_inline_dir fs/ocfs2/dir.c:2839 [inline] ocfs2_extend_dir+0xc60/0x4760 fs/ocfs2/dir.c:3201 ocfs2_prepare_dir_for_insert+0x2fc7/0x5480 fs/ocfs2/dir.c:4322 ocfs2_mknod+0x818/0x20f0 fs/ocfs2/namei.c:294 vfs_mknod+0x32b/0x360 fs/namei.c:3991 do_mknodat+0x37e/0x4f0 fs/namei.c:-1 __do_sys_mknod fs/namei.c:4074 [inline] __se_sys_mknod fs/namei.c:4072 [inline] __x64_sys_mknod+0x8e/0xa0 fs/namei.c:4072 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}: down_write+0x97/0x1f0 kernel/locking/rwsem.c:1573 inode_lock include/linux/fs.h:804 [inline] ocfs2_reserve_suballoc_bits+0x165/0x4360 fs/ocfs2/suballoc.c:782 ocfs2_reserve_cluster_bitmap_bits fs/ocfs2/suballoc.c:1128 [inline] ocfs2_reserve_clusters_with_limit+0x2fc/0xba0 fs/ocfs2/suballoc.c:1173 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:670 [inline] ocfs2_reserve_suballoc_bits+0x6eb/0x4360 fs/ocfs2/suballoc.c:828 ocfs2_reserve_new_metadata_blocks+0x404/0x940 fs/ocfs2/suballoc.c:978 ocfs2_expand_inline_dir fs/ocfs2/dir.c:2839 [inline] ocfs2_extend_dir+0xc60/0x4760 fs/ocfs2/dir.c:3201 ocfs2_prepare_dir_for_insert+0x2fc7/0x5480 fs/ocfs2/dir.c:4322 ocfs2_mknod+0x818/0x20f0 fs/ocfs2/namei.c:294 vfs_mknod+0x32b/0x360 fs/namei.c:3991 do_mknodat+0x37e/0x4f0 fs/namei.c:-1 __do_sys_mknod fs/namei.c:4074 [inline] __se_sys_mknod fs/namei.c:4072 [inline] __x64_sys_mknod+0x8e/0xa0 fs/namei.c:4072 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x2ddb/0x7c80 kernel/locking/lockdep.c:5137 lock_acquire+0x197/0x410 kernel/locking/lockdep.c:5754 down_write+0x97/0x1f0 kernel/locking/rwsem.c:1573 inode_lock include/linux/fs.h:804 [inline] ocfs2_reserve_suballoc_bits+0x165/0x4360 fs/ocfs2/suballoc.c:782 ocfs2_reserve_new_metadata_blocks+0x404/0x940 fs/ocfs2/suballoc.c:978 ocfs2_init_xattr_set_ctxt+0x2f8/0x6e0 fs/ocfs2/xattr.c:3277 ocfs2_xattr_set+0xb6d/0x11f0 fs/ocfs2/xattr.c:3634 __vfs_setxattr+0x431/0x470 fs/xattr.c:201 __vfs_setxattr_noperm+0x12d/0x5e0 fs/xattr.c:235 vfs_setxattr+0x16c/0x2f0 fs/xattr.c:322 do_setxattr fs/xattr.c:630 [inline] path_setxattr+0x362/0x550 fs/xattr.c:659 __do_sys_setxattr fs/xattr.c:677 [inline] __se_sys_setxattr fs/xattr.c:673 [inline] __x64_sys_setxattr+0xbb/0xd0 fs/xattr.c:673 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 other info that might help us debug this: Chain exists of: &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2 --> jbd2_handle --> &oi->ip_xattr_sem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&oi->ip_xattr_sem); lock(jbd2_handle); lock(&oi->ip_xattr_sem); lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2); *** DEADLOCK *** 3 locks held by syz.2.2618/17366: #0: ffff888047e9a418 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:403 #1: ffff88805ecad118 (&type->i_mutex_dir_key#26){++++}-{3:3}, at: inode_lock include/linux/fs.h:804 [inline] #1: ffff88805ecad118 (&type->i_mutex_dir_key#26){++++}-{3:3}, at: vfs_setxattr+0x145/0x2f0 fs/xattr.c:321 #2: ffff88805ecace38 (&oi->ip_xattr_sem){++++}-{3:3}, at: ocfs2_xattr_set+0x410/0x11f0 fs/ocfs2/xattr.c:3583 stack backtrace: CPU: 1 PID: 17366 Comm: syz.2.2618 Not tainted 6.6.93-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: dump_stack_lvl+0x16c/0x230 lib/dump_stack.c:106 check_noncircular+0x2bd/0x3c0 kernel/locking/lockdep.c:2187 check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x2ddb/0x7c80 kernel/locking/lockdep.c:5137 lock_acquire+0x197/0x410 kernel/locking/lockdep.c:5754 down_write+0x97/0x1f0 kernel/locking/rwsem.c:1573 inode_lock include/linux/fs.h:804 [inline] ocfs2_reserve_suballoc_bits+0x165/0x4360 fs/ocfs2/suballoc.c:782 ocfs2_reserve_new_metadata_blocks+0x404/0x940 fs/ocfs2/suballoc.c:978 ocfs2_init_xattr_set_ctxt+0x2f8/0x6e0 fs/ocfs2/xattr.c:3277 ocfs2_xattr_set+0xb6d/0x11f0 fs/ocfs2/xattr.c:3634 __vfs_setxattr+0x431/0x470 fs/xattr.c:201 __vfs_setxattr_noperm+0x12d/0x5e0 fs/xattr.c:235 vfs_setxattr+0x16c/0x2f0 fs/xattr.c:322 do_setxattr fs/xattr.c:630 [inline] path_setxattr+0x362/0x550 fs/xattr.c:659 __do_sys_setxattr fs/xattr.c:677 [inline] __se_sys_setxattr fs/xattr.c:673 [inline] __x64_sys_setxattr+0xbb/0xd0 fs/xattr.c:673 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f461878e929 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:00007f46195c0038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007f46189b5fa0 RCX: 00007f461878e929 RDX: 0000200000002700 RSI: 00002000000000c0 RDI: 0000200000000080 RBP: 00007f4618810b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000001015 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f46189b5fa0 R15: 00007fff353efca8