loop6: detected capacity change from 0 to 32768
ocfs2: Slot 0 on device (7,6) was already allocated to this node!
ocfs2: Mounting device (7,6) on (node local, slot 0) with ordered data mode.
======================================================
WARNING: possible circular locking dependency detected
6.6.93-syzkaller #0 Not tainted
------------------------------------------------------
syz.6.3526/14840 is trying to acquire lock:
ffff8880592309d8 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:804 [inline]
ffff8880592309d8 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{3:3}, at: ocfs2_reserve_local_alloc_bits+0x126/0x24b0 fs/ocfs2/localalloc.c:635
but task is already holding lock:
ffff8880749a14a0 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_expand_inline_dir fs/ocfs2/dir.c:2820 [inline]
ffff8880749a14a0 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_extend_dir+0x651/0x4760 fs/ocfs2/dir.c:3201
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #5 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}:
down_write+0x97/0x1f0 kernel/locking/rwsem.c:1573
ocfs2_try_remove_refcount_tree+0xb7/0x320 fs/ocfs2/refcounttree.c:932
ocfs2_xattr_set+0x596/0x11f0 fs/ocfs2/xattr.c:3669
ocfs2_set_acl+0x4e1/0x590 fs/ocfs2/acl.c:254
ocfs2_iop_set_acl+0x1ab/0x2a0 fs/ocfs2/acl.c:286
set_posix_acl fs/posix_acl.c:956 [inline]
vfs_set_acl+0x803/0xa60 fs/posix_acl.c:1135
do_setxattr fs/xattr.c:627 [inline]
path_setxattr+0x39f/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
-> #4 (&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
ocfs2_create+0x196/0x410 fs/ocfs2/namei.c:674
lookup_open fs/namei.c:3488 [inline]
open_last_lookups fs/namei.c:3556 [inline]
path_openat+0x1277/0x3190 fs/namei.c:3786
do_filp_open+0x1c5/0x3d0 fs/namei.c:3816
do_sys_openat2+0x12c/0x1c0 fs/open.c:1419
do_sys_open fs/open.c:1434 [inline]
__do_sys_openat fs/open.c:1450 [inline]
__se_sys_openat fs/open.c:1445 [inline]
__x64_sys_openat+0x139/0x160 fs/open.c:1445
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 (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_shutdown_local_alloc+0x201/0xa10 fs/ocfs2/localalloc.c:416
ocfs2_dismount_volume+0x1e2/0x890 fs/ocfs2/super.c:1883
generic_shutdown_super+0x134/0x2b0 fs/super.c:693
kill_block_super+0x44/0x90 fs/super.c:1660
deactivate_locked_super+0x97/0x100 fs/super.c:481
cleanup_mnt+0x429/0x4c0 fs/namespace.c:1250
task_work_run+0x1ce/0x250 kernel/task_work.c:239
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
-> #2 (&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_shutdown_local_alloc+0x201/0xa10 fs/ocfs2/localalloc.c:416
ocfs2_dismount_volume+0x1e2/0x890 fs/ocfs2/super.c:1883
generic_shutdown_super+0x134/0x2b0 fs/super.c:693
kill_block_super+0x44/0x90 fs/super.c:1660
deactivate_locked_super+0x97/0x100 fs/super.c:481
cleanup_mnt+0x429/0x4c0 fs/namespace.c:1250
task_work_run+0x1ce/0x250 kernel/task_work.c:239
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
-> #1 (sb_internal#4){.+.+}-{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_mknod+0xe47/0x20f0 fs/ocfs2/namei.c:361
ocfs2_create+0x196/0x410 fs/ocfs2/namei.c:674
lookup_open fs/namei.c:3488 [inline]
open_last_lookups fs/namei.c:3556 [inline]
path_openat+0x1277/0x3190 fs/namei.c:3786
do_filp_open+0x1c5/0x3d0 fs/namei.c:3816
do_sys_openat2+0x12c/0x1c0 fs/open.c:1419
do_sys_open fs/open.c:1434 [inline]
__do_sys_openat fs/open.c:1450 [inline]
__se_sys_openat fs/open.c:1445 [inline]
__x64_sys_openat+0x139/0x160 fs/open.c:1445
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]#6){+.+.}-{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_local_alloc_bits+0x126/0x24b0 fs/ocfs2/localalloc.c:635
ocfs2_reserve_clusters_with_limit+0x1bf/0xba0 fs/ocfs2/suballoc.c:1162
ocfs2_expand_inline_dir fs/ocfs2/dir.c:2856 [inline]
ocfs2_extend_dir+0x702/0x4760 fs/ocfs2/dir.c:3201
ocfs2_prepare_dir_for_insert+0x2fc7/0x5480 fs/ocfs2/dir.c:4322
ocfs2_symlink+0xb38/0x2550 fs/ocfs2/namei.c:1863
vfs_symlink+0x138/0x2b0 fs/namei.c:4473
do_symlinkat+0x1b2/0x3f0 fs/namei.c:4499
__do_sys_symlink fs/namei.c:4520 [inline]
__se_sys_symlink fs/namei.c:4518 [inline]
__x64_sys_symlink+0x7e/0x90 fs/namei.c:4518
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]#6 --> &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(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6);
*** DEADLOCK ***
3 locks held by syz.6.3526/14840:
#0: ffff888030790418 (sb_writers#25){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:403
#1: ffff8880749a1818 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:839 [inline]
#1: ffff8880749a1818 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: filename_create+0x1f6/0x460 fs/namei.c:3882
#2: ffff8880749a14a0 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_expand_inline_dir fs/ocfs2/dir.c:2820 [inline]
#2: ffff8880749a14a0 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_extend_dir+0x651/0x4760 fs/ocfs2/dir.c:3201
stack backtrace:
CPU: 0 PID: 14840 Comm: syz.6.3526 Not tainted 6.6.93-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
<TASK>
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_local_alloc_bits+0x126/0x24b0 fs/ocfs2/localalloc.c:635
ocfs2_reserve_clusters_with_limit+0x1bf/0xba0 fs/ocfs2/suballoc.c:1162
ocfs2_expand_inline_dir fs/ocfs2/dir.c:2856 [inline]
ocfs2_extend_dir+0x702/0x4760 fs/ocfs2/dir.c:3201
ocfs2_prepare_dir_for_insert+0x2fc7/0x5480 fs/ocfs2/dir.c:4322
ocfs2_symlink+0xb38/0x2550 fs/ocfs2/namei.c:1863
vfs_symlink+0x138/0x2b0 fs/namei.c:4473
do_symlinkat+0x1b2/0x3f0 fs/namei.c:4499
__do_sys_symlink fs/namei.c:4520 [inline]
__se_sys_symlink fs/namei.c:4518 [inline]
__x64_sys_symlink+0x7e/0x90 fs/namei.c:4518
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: 0033:0x7f639d98e929
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:00007f639e7ed038 EFLAGS: 00000246 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 00007f639dbb5fa0 RCX: 00007f639d98e929
RDX: 0000000000000000 RSI: 0000200000000040 RDI: 0000200000000000
RBP: 00007f639da10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f639dbb5fa0 R15: 00007ffe4ece3ef8
</TASK>
syz.6.3526 (14840) used greatest stack depth: 20336 bytes left