loop3: detected capacity change from 0 to 32768 ocfs2: Mounting device (7,3) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.13.0-rc2-syzkaller-00362-g2d8308bf5b67 #0 Not tainted ------------------------------------------------------ syz.3.5366/27649 is trying to acquire lock: ffff8880363b3480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] ffff8880363b3480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}, at: ocfs2_xattr_set+0xe9e/0x1930 fs/ocfs2/xattr.c:3622 but task is already holding lock: ffff8880363b06f8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_xattr_set+0x633/0x1930 fs/ocfs2/xattr.c:3583 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&oi->ip_xattr_sem){++++}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524 ocfs2_init_acl+0x397/0x930 fs/ocfs2/acl.c:366 ocfs2_mknod+0x1c05/0x2b30 fs/ocfs2/namei.c:410 ocfs2_mkdir+0x1ab/0x470 fs/ocfs2/namei.c:657 vfs_mkdir+0x2fb/0x4f0 fs/namei.c:4311 do_mkdirat+0x264/0x3a0 fs/namei.c:4334 __do_sys_mkdirat fs/namei.c:4349 [inline] __se_sys_mkdirat fs/namei.c:4347 [inline] __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4347 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 (jbd2_handle){++++}-{0:0}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 start_this_handle+0x1eb4/0x2110 fs/jbd2/transaction.c:448 jbd2__journal_start+0x2da/0x5d0 fs/jbd2/transaction.c:505 jbd2_journal_start+0x29/0x40 fs/jbd2/transaction.c:544 ocfs2_start_trans+0x3c9/0x700 fs/ocfs2/journal.c:352 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:685 [inline] ocfs2_reserve_suballoc_bits+0x9f6/0x4e70 fs/ocfs2/suballoc.c:832 ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 fs/ocfs2/suballoc.c:982 ocfs2_expand_inline_dir fs/ocfs2/dir.c:2820 [inline] ocfs2_extend_dir+0xdef/0x53c0 fs/ocfs2/dir.c:3182 ocfs2_prepare_dir_for_insert+0x33b5/0x5c40 fs/ocfs2/dir.c:4287 ocfs2_mknod+0xcaf/0x2b30 fs/ocfs2/namei.c:294 ocfs2_mkdir+0x1ab/0x470 fs/ocfs2/namei.c:657 vfs_mkdir+0x2fb/0x4f0 fs/namei.c:4311 do_mkdirat+0x264/0x3a0 fs/namei.c:4334 __do_sys_mkdirat fs/namei.c:4349 [inline] __se_sys_mkdirat fs/namei.c:4347 [inline] __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4347 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 (&journal->j_trans_barrier){.+.+}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524 ocfs2_start_trans+0x3be/0x700 fs/ocfs2/journal.c:350 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:685 [inline] ocfs2_reserve_suballoc_bits+0x9f6/0x4e70 fs/ocfs2/suballoc.c:832 ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 fs/ocfs2/suballoc.c:982 ocfs2_expand_inline_dir fs/ocfs2/dir.c:2820 [inline] ocfs2_extend_dir+0xdef/0x53c0 fs/ocfs2/dir.c:3182 ocfs2_prepare_dir_for_insert+0x33b5/0x5c40 fs/ocfs2/dir.c:4287 ocfs2_mknod+0xcaf/0x2b30 fs/ocfs2/namei.c:294 ocfs2_mkdir+0x1ab/0x470 fs/ocfs2/namei.c:657 vfs_mkdir+0x2fb/0x4f0 fs/namei.c:4311 do_mkdirat+0x264/0x3a0 fs/namei.c:4334 __do_sys_mkdirat fs/namei.c:4349 [inline] __se_sys_mkdirat fs/namei.c:4347 [inline] __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4347 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 (sb_internal#4){.+.+}-{0:0}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1725 [inline] sb_start_intwrite include/linux/fs.h:1908 [inline] ocfs2_start_trans+0x2b9/0x700 fs/ocfs2/journal.c:348 ocfs2_remove_btree_range+0x8e4/0x1860 fs/ocfs2/alloc.c:5752 ocfs2_remove_inode_range+0xff3/0x29c0 fs/ocfs2/file.c:1907 __ocfs2_change_file_space+0x8e4/0xfd0 fs/ocfs2/file.c:2028 ocfs2_fallocate+0x2e4/0x350 fs/ocfs2/file.c:2138 vfs_fallocate+0x56b/0x6e0 fs/open.c:327 ksys_fallocate fs/open.c:351 [inline] __do_sys_fallocate fs/open.c:356 [inline] __se_sys_fallocate fs/open.c:354 [inline] __x64_sys_fallocate+0xbc/0x110 fs/open.c:354 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_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}: check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 down_write+0x99/0x220 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:818 [inline] ocfs2_xattr_set+0xe9e/0x1930 fs/ocfs2/xattr.c:3622 __vfs_setxattr+0x46a/0x4a0 fs/xattr.c:200 __vfs_setxattr_noperm+0x12e/0x660 fs/xattr.c:234 vfs_setxattr+0x221/0x430 fs/xattr.c:321 do_setxattr fs/xattr.c:636 [inline] filename_setxattr+0x2af/0x430 fs/xattr.c:665 path_setxattrat+0x440/0x510 fs/xattr.c:713 __do_sys_lsetxattr fs/xattr.c:754 [inline] __se_sys_lsetxattr fs/xattr.c:750 [inline] __x64_sys_lsetxattr+0xbf/0xe0 fs/xattr.c:750 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_sysfile_lock_key[args->fi_sysfile_type]#6 --> 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]#6); *** DEADLOCK *** 3 locks held by syz.3.5366/27649: #0: ffff888021288420 (sb_writers#28){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515 #1: ffff8880363b09c0 (&sb->s_type->i_mutex_key#40){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] #1: ffff8880363b09c0 (&sb->s_type->i_mutex_key#40){+.+.}-{4:4}, at: vfs_setxattr+0x1e1/0x430 fs/xattr.c:320 #2: ffff8880363b06f8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_xattr_set+0x633/0x1930 fs/ocfs2/xattr.c:3583 stack backtrace: CPU: 0 UID: 0 PID: 27649 Comm: syz.3.5366 Not tainted 6.13.0-rc2-syzkaller-00362-g2d8308bf5b67 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 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:2074 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2206 check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 down_write+0x99/0x220 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:818 [inline] ocfs2_xattr_set+0xe9e/0x1930 fs/ocfs2/xattr.c:3622 __vfs_setxattr+0x46a/0x4a0 fs/xattr.c:200 __vfs_setxattr_noperm+0x12e/0x660 fs/xattr.c:234 vfs_setxattr+0x221/0x430 fs/xattr.c:321 do_setxattr fs/xattr.c:636 [inline] filename_setxattr+0x2af/0x430 fs/xattr.c:665 path_setxattrat+0x440/0x510 fs/xattr.c:713 __do_sys_lsetxattr fs/xattr.c:754 [inline] __se_sys_lsetxattr fs/xattr.c:750 [inline] __x64_sys_lsetxattr+0xbf/0xe0 fs/xattr.c:750 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: 0033:0x7fc54fb85d19 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:00007fc550a24038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd RAX: ffffffffffffffda RBX: 00007fc54fd75fa0 RCX: 00007fc54fb85d19 RDX: 0000000020002700 RSI: 0000000020000000 RDI: 0000000020000180 RBP: 00007fc54fc01a20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000e01 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fc54fd75fa0 R15: 00007fff34357b38