loop7: detected capacity change from 0 to 32768
ocfs2: Mounting device (7,7) on (node local, slot 0) with writeback data mode.
======================================================
WARNING: possible circular locking dependency detected
6.13.0-rc6-syzkaller-00006-g5428dc1906dd #0 Not tainted
------------------------------------------------------
syz.7.1824/14609 is trying to acquire lock:
ffff888058903ff8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_calc_xattr_init+0x208/0xd70 fs/ocfs2/xattr.c:627
but task is already holding lock:
ffff88807a8842c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
ffff88807a8842c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x192/0x4e70 fs/ocfs2/suballoc.c:786
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}:
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_remove_inode fs/ocfs2/inode.c:655 [inline]
ocfs2_wipe_inode fs/ocfs2/inode.c:818 [inline]
ocfs2_delete_inode fs/ocfs2/inode.c:1079 [inline]
ocfs2_evict_inode+0x209f/0x4630 fs/ocfs2/inode.c:1216
evict+0x4ea/0x9a0 fs/inode.c:796
ocfs2_dentry_iput+0x232/0x380 fs/ocfs2/dcache.c:411
__dentry_kill+0x20d/0x630 fs/dcache.c:625
dput+0x19f/0x2b0 fs/dcache.c:867
ovl_check_rename_whiteout fs/overlayfs/super.c:586 [inline]
ovl_make_workdir fs/overlayfs/super.c:685 [inline]
ovl_get_workdir+0xc6c/0x1920 fs/overlayfs/super.c:808
ovl_fill_super+0x12a8/0x3560 fs/overlayfs/super.c:1376
vfs_get_super fs/super.c:1280 [inline]
get_tree_nodev+0xb9/0x140 fs/super.c:1299
vfs_get_tree+0x92/0x2b0 fs/super.c:1814
do_new_mount+0x2be/0xb40 fs/namespace.c:3507
do_mount fs/namespace.c:3847 [inline]
__do_sys_mount fs/namespace.c:4057 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
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 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{4:4}:
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_del_inode_from_orphan+0x159/0x800 fs/ocfs2/namei.c:2728
ocfs2_dio_end_io_write fs/ocfs2/aops.c:2329 [inline]
ocfs2_dio_end_io+0x55b/0x1250 fs/ocfs2/aops.c:2427
dio_complete+0x253/0x6b0 fs/direct-io.c:281
__blockdev_direct_IO+0x3eb6/0x4890 fs/direct-io.c:1303
ocfs2_direct_IO+0x255/0x2c0 fs/ocfs2/aops.c:2464
generic_file_direct_write+0x1e8/0x400 mm/filemap.c:3969
__generic_file_write_iter+0x126/0x230 mm/filemap.c:4133
ocfs2_file_write_iter+0x19af/0x2180 fs/ocfs2/file.c:2469
do_iter_readv_writev+0x602/0x880
vfs_writev+0x376/0xba0 fs/read_write.c:1050
do_pwritev fs/read_write.c:1146 [inline]
__do_sys_pwritev2 fs/read_write.c:1204 [inline]
__se_sys_pwritev2+0x196/0x2b0 fs/read_write.c:1195
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 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
down_write+0x99/0x220 kernel/locking/rwsem.c:1577
ocfs2_try_remove_refcount_tree+0xb6/0x330 fs/ocfs2/refcounttree.c:932
ocfs2_truncate_file+0xe1b/0x1560 fs/ocfs2/file.c:521
ocfs2_setattr+0x1890/0x1ef0 fs/ocfs2/file.c:1212
notify_change+0xbcc/0xe90 fs/attr.c:552
do_truncate+0x220/0x310 fs/open.c:65
handle_truncate fs/namei.c:3449 [inline]
do_open fs/namei.c:3832 [inline]
path_openat+0x2e1e/0x3590 fs/namei.c:3987
do_filp_open+0x27f/0x4e0 fs/namei.c:4014
do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_openat fs/open.c:1433 [inline]
__se_sys_openat fs/open.c:1428 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1428
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 (&oi->ip_xattr_sem){++++}-{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_read+0xb1/0xa40 kernel/locking/rwsem.c:1524
ocfs2_calc_xattr_init+0x208/0xd70 fs/ocfs2/xattr.c:627
ocfs2_mknod+0x1231/0x2b30 fs/ocfs2/namei.c:330
ocfs2_create+0x1ab/0x470 fs/ocfs2/namei.c:674
lookup_open fs/namei.c:3649 [inline]
open_last_lookups fs/namei.c:3748 [inline]
path_openat+0x1c05/0x3590 fs/namei.c:3984
do_filp_open+0x27f/0x4e0 fs/namei.c:4014
do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_creat fs/open.c:1495 [inline]
__se_sys_creat fs/open.c:1489 [inline]
__x64_sys_creat+0x123/0x170 fs/open.c:1489
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:
&oi->ip_xattr_sem --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type] --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4);
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]);
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4);
rlock(&oi->ip_xattr_sem);
*** DEADLOCK ***
3 locks held by syz.7.1824/14609:
#0: ffff88806ed5c420 (sb_writers#31){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515
#1: ffff8880589042c0 (&type->i_mutex_dir_key#20){++++}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff8880589042c0 (&type->i_mutex_dir_key#20){++++}-{4:4}, at: open_last_lookups fs/namei.c:3745 [inline]
#1: ffff8880589042c0 (&type->i_mutex_dir_key#20){++++}-{4:4}, at: path_openat+0x89a/0x3590 fs/namei.c:3984
#2: ffff88807a8842c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
#2: ffff88807a8842c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x192/0x4e70 fs/ocfs2/suballoc.c:786
stack backtrace:
CPU: 1 UID: 0 PID: 14609 Comm: syz.7.1824 Not tainted 6.13.0-rc6-syzkaller-00006-g5428dc1906dd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__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_read+0xb1/0xa40 kernel/locking/rwsem.c:1524
ocfs2_calc_xattr_init+0x208/0xd70 fs/ocfs2/xattr.c:627
ocfs2_mknod+0x1231/0x2b30 fs/ocfs2/namei.c:330
ocfs2_create+0x1ab/0x470 fs/ocfs2/namei.c:674
lookup_open fs/namei.c:3649 [inline]
open_last_lookups fs/namei.c:3748 [inline]
path_openat+0x1c05/0x3590 fs/namei.c:3984
do_filp_open+0x27f/0x4e0 fs/namei.c:4014
do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_creat fs/open.c:1495 [inline]
__se_sys_creat fs/open.c:1489 [inline]
__x64_sys_creat+0x123/0x170 fs/open.c:1489
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: 0033:0x7f0b94d85d29
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:00007f0b95b95038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f0b94f75fa0 RCX: 00007f0b94d85d29
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000580
RBP: 00007f0b94e01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0b94f75fa0 R15: 00007ffc31735588
</TASK>