JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.12.0-rc5-syzkaller #0 Not tainted ------------------------------------------------------ syz.0.15/5928 is trying to acquire lock: ffff8880620b06f8 (&oi->ip_xattr_sem){++++}-{3:3}, at: ocfs2_init_acl+0x397/0x930 fs/ocfs2/acl.c:366 but task is already holding lock: ffff888023a76958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1e97/0x2110 fs/jbd2/transaction.c:448 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #5 (jbd2_handle){++++}-{0:0}: start_this_handle+0x1eb7/0x2110 fs/jbd2/transaction.c:448 jbd2__journal_start+0x306/0x620 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+0x9f6/0x4e90 fs/ocfs2/suballoc.c:832 ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 fs/ocfs2/suballoc.c:982 ocfs2_init_xattr_set_ctxt+0x3a6/0x8f0 fs/ocfs2/xattr.c:3278 ocfs2_xattr_set+0xf4e/0x1930 fs/ocfs2/xattr.c:3635 ocfs2_set_acl+0x4cb/0x580 fs/ocfs2/acl.c:254 ocfs2_iop_set_acl+0x24a/0x3c0 fs/ocfs2/acl.c:286 set_posix_acl fs/posix_acl.c:955 [inline] vfs_set_acl+0x7fd/0xa60 fs/posix_acl.c:1134 do_set_acl+0xf4/0x180 fs/posix_acl.c:1279 do_setxattr fs/xattr.c:626 [inline] path_setxattr+0x3bd/0x4d0 fs/xattr.c:658 __do_sys_lsetxattr fs/xattr.c:683 [inline] __se_sys_lsetxattr fs/xattr.c:679 [inline] __x64_sys_lsetxattr+0xb8/0xd0 fs/xattr.c:679 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x76/0x7e -> #4 (&journal->j_trans_barrier){.+.+}-{3:3}: 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+0x9f6/0x4e90 fs/ocfs2/suballoc.c:832 ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 fs/ocfs2/suballoc.c:982 ocfs2_init_xattr_set_ctxt+0x3a6/0x8f0 fs/ocfs2/xattr.c:3278 ocfs2_xattr_set+0xf4e/0x1930 fs/ocfs2/xattr.c:3635 ocfs2_set_acl+0x4cb/0x580 fs/ocfs2/acl.c:254 ocfs2_iop_set_acl+0x24a/0x3c0 fs/ocfs2/acl.c:286 set_posix_acl fs/posix_acl.c:955 [inline] vfs_set_acl+0x7fd/0xa60 fs/posix_acl.c:1134 do_set_acl+0xf4/0x180 fs/posix_acl.c:1279 do_setxattr fs/xattr.c:626 [inline] path_setxattr+0x3bd/0x4d0 fs/xattr.c:658 __do_sys_lsetxattr fs/xattr.c:683 [inline] __se_sys_lsetxattr fs/xattr.c:679 [inline] __x64_sys_lsetxattr+0xb8/0xd0 fs/xattr.c:679 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x76/0x7e -> #3 (sb_internal#2){.+.+}-{0:0}: percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1716 [inline] sb_start_intwrite include/linux/fs.h:1899 [inline] ocfs2_start_trans+0x2b9/0x700 fs/ocfs2/journal.c:348 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:685 [inline] ocfs2_reserve_suballoc_bits+0x9f6/0x4e90 fs/ocfs2/suballoc.c:832 ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 fs/ocfs2/suballoc.c:982 ocfs2_init_xattr_set_ctxt+0x3a6/0x8f0 fs/ocfs2/xattr.c:3278 ocfs2_xattr_set+0xf4e/0x1930 fs/ocfs2/xattr.c:3635 ocfs2_set_acl+0x4cb/0x580 fs/ocfs2/acl.c:254 ocfs2_iop_set_acl+0x24a/0x3c0 fs/ocfs2/acl.c:286 set_posix_acl fs/posix_acl.c:955 [inline] vfs_set_acl+0x7fd/0xa60 fs/posix_acl.c:1134 do_set_acl+0xf4/0x180 fs/posix_acl.c:1279 do_setxattr fs/xattr.c:626 [inline] path_setxattr+0x3bd/0x4d0 fs/xattr.c:658 __do_sys_lsetxattr fs/xattr.c:683 [inline] __se_sys_lsetxattr fs/xattr.c:679 [inline] __x64_sys_lsetxattr+0xb8/0xd0 fs/xattr.c:679 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x76/0x7e -> #2 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{3:3}: down_write+0x99/0x220 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:815 [inline] ocfs2_reserve_suballoc_bits+0x192/0x4e90 fs/ocfs2/suballoc.c:786 ocfs2_reserve_cluster_bitmap_bits fs/ocfs2/suballoc.c:1132 [inline] ocfs2_reserve_clusters_with_limit+0x3dd/0xb60 fs/ocfs2/suballoc.c:1177 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:674 [inline] ocfs2_reserve_suballoc_bits+0x9d6/0x4e90 fs/ocfs2/suballoc.c:832 ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 fs/ocfs2/suballoc.c:982 ocfs2_init_xattr_set_ctxt+0x3a6/0x8f0 fs/ocfs2/xattr.c:3278 ocfs2_xattr_set+0xf4e/0x1930 fs/ocfs2/xattr.c:3635 ocfs2_set_acl+0x4cb/0x580 fs/ocfs2/acl.c:254 ocfs2_iop_set_acl+0x24a/0x3c0 fs/ocfs2/acl.c:286 set_posix_acl fs/posix_acl.c:955 [inline] vfs_set_acl+0x7fd/0xa60 fs/posix_acl.c:1134 do_set_acl+0xf4/0x180 fs/posix_acl.c:1279 do_setxattr fs/xattr.c:626 [inline] path_setxattr+0x3bd/0x4d0 fs/xattr.c:658 __do_sys_lsetxattr fs/xattr.c:683 [inline] __se_sys_lsetxattr fs/xattr.c:679 [inline] __x64_sys_lsetxattr+0xb8/0xd0 fs/xattr.c:679 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x76/0x7e -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}: down_write+0x99/0x220 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:815 [inline] ocfs2_reserve_suballoc_bits+0x192/0x4e90 fs/ocfs2/suballoc.c:786 ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 fs/ocfs2/suballoc.c:982 ocfs2_init_xattr_set_ctxt+0x3a6/0x8f0 fs/ocfs2/xattr.c:3278 ocfs2_xattr_set+0xf4e/0x1930 fs/ocfs2/xattr.c:3635 ocfs2_set_acl+0x4cb/0x580 fs/ocfs2/acl.c:254 ocfs2_iop_set_acl+0x24a/0x3c0 fs/ocfs2/acl.c:286 set_posix_acl fs/posix_acl.c:955 [inline] vfs_set_acl+0x7fd/0xa60 fs/posix_acl.c:1134 do_set_acl+0xf4/0x180 fs/posix_acl.c:1279 do_setxattr fs/xattr.c:626 [inline] path_setxattr+0x3bd/0x4d0 fs/xattr.c:658 __do_sys_lsetxattr fs/xattr.c:683 [inline] __se_sys_lsetxattr fs/xattr.c:679 [inline] __x64_sys_lsetxattr+0xb8/0xd0 fs/xattr.c:679 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x76/0x7e -> #0 (&oi->ip_xattr_sem){++++}-{3:3}: check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x2f62/0x8080 kernel/locking/lockdep.c:5202 lock_acquire+0x1ed/0x540 kernel/locking/lockdep.c:5825 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524 ocfs2_init_acl+0x397/0x930 fs/ocfs2/acl.c:366 ocfs2_mknod+0x1ca3/0x2c00 fs/ocfs2/namei.c:408 ocfs2_create+0x1ab/0x480 fs/ocfs2/namei.c:672 lookup_open fs/namei.c:3595 [inline] open_last_lookups fs/namei.c:3694 [inline] path_openat+0x1c03/0x3590 fs/namei.c:3930 do_filp_open+0x235/0x490 fs/namei.c:3960 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415 do_sys_open fs/open.c:1430 [inline] __do_sys_openat fs/open.c:1446 [inline] __se_sys_openat fs/open.c:1441 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x76/0x7e other info that might help us debug this: Chain exists of: &oi->ip_xattr_sem --> &journal->j_trans_barrier --> jbd2_handle Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(jbd2_handle); lock(&journal->j_trans_barrier); lock(jbd2_handle); rlock(&oi->ip_xattr_sem); *** DEADLOCK *** 8 locks held by syz.0.15/5928: #0: ffff88807d722420 (sb_writers#13){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515 #1: ffff8880620b09c0 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline] #1: ffff8880620b09c0 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: open_last_lookups fs/namei.c:3691 [inline] #1: ffff8880620b09c0 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: path_openat+0x89a/0x3590 fs/namei.c:3930 #2: ffff8880765309c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline] #2: ffff8880765309c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x192/0x4e90 fs/ocfs2/suballoc.c:786 #3: ffff8880620b6d80 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline] #3: ffff8880620b6d80 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x192/0x4e90 fs/ocfs2/suballoc.c:786 #4: ffff888076532640 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline] #4: ffff888076532640 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{3:3}, at: ocfs2_reserve_local_alloc_bits+0x132/0x2850 fs/ocfs2/localalloc.c:636 #5: ffff88807d722610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_mknod+0x1552/0x2c00 fs/ocfs2/namei.c:359 #6: ffff88814aaaf4e8 (&journal->j_trans_barrier){.+.+}-{3:3}, at: ocfs2_start_trans+0x3be/0x700 fs/ocfs2/journal.c:350 #7: ffff888023a76958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1e97/0x2110 fs/jbd2/transaction.c:448 stack backtrace: CPU: 0 UID: 0 PID: 5928 Comm: syz.0.15 Not tainted 6.12.0-rc5-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:2074 check_noncircular+0x379/0x4b0 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 kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x2f62/0x8080 kernel/locking/lockdep.c:5202 lock_acquire+0x1ed/0x540 kernel/locking/lockdep.c:5825 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524 ocfs2_init_acl+0x397/0x930 fs/ocfs2/acl.c:366 ocfs2_mknod+0x1ca3/0x2c00 fs/ocfs2/namei.c:408 ocfs2_create+0x1ab/0x480 fs/ocfs2/namei.c:672 lookup_open fs/namei.c:3595 [inline] open_last_lookups fs/namei.c:3694 [inline] path_openat+0x1c03/0x3590 fs/namei.c:3930 do_filp_open+0x235/0x490 fs/namei.c:3960 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415 do_sys_open fs/open.c:1430 [inline] __do_sys_openat fs/open.c:1446 [inline] __se_sys_openat fs/open.c:1441 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f26e2b7dff9 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:00007f26e3953038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f26e2d35f80 RCX: 00007f26e2b7dff9 RDX: 00000000000026e1 RSI: 0000000020000500 RDI: ffffffffffffff9c RBP: 00007f26e2bf0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f26e2d35f80 R15: 00007ffd6751bf58