loop1: detected capacity change from 0 to 32768
JBD2: Ignoring recovery information on journal
ocfs2: Mounting device (7,1) on (node local, slot 0) with ordered data mode.
======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Not tainted
------------------------------------------------------
syz.1.70/6453 is trying to acquire lock:
ffff88805ecc2770 (sb_internal#3){.+.+}-{0:0}, at: ocfs2_setattr+0x959/0x1b20 fs/ocfs2/file.c:1263
but task is already holding lock:
ffff888049259890 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}, at: ocfs2_setattr+0x94a/0x1b20 fs/ocfs2/file.c:1262
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}:
down_write+0x3a/0x50 kernel/locking/rwsem.c:1590
ocfs2_try_remove_refcount_tree+0xb6/0x320 fs/ocfs2/refcounttree.c:933
ocfs2_xattr_set+0x595/0x11f0 fs/ocfs2/xattr.c:3669
ocfs2_set_acl+0x701/0x7b0 fs/ocfs2/acl.c:255
ocfs2_iop_set_acl+0x1aa/0x2a0 fs/ocfs2/acl.c:287
set_posix_acl fs/posix_acl.c:954 [inline]
vfs_remove_acl+0x48e/0x700 fs/posix_acl.c:1241
ovl_do_remove_acl fs/overlayfs/overlayfs.h:355 [inline]
ovl_workdir_create+0x57d/0x900 fs/overlayfs/super.c:369
ovl_make_workdir fs/overlayfs/super.c:682 [inline]
ovl_get_workdir fs/overlayfs/super.c:840 [inline]
ovl_fill_super_creds fs/overlayfs/super.c:1453 [inline]
ovl_fill_super+0x188f/0x5a90 fs/overlayfs/super.c:1567
vfs_get_super fs/super.c:1324 [inline]
get_tree_nodev+0xbb/0x150 fs/super.c:1343
vfs_get_tree+0x92/0x2a0 fs/super.c:1751
fc_mount fs/namespace.c:1199 [inline]
do_new_mount_fc fs/namespace.c:3636 [inline]
do_new_mount+0x302/0xa10 fs/namespace.c:3712
do_mount fs/namespace.c:4035 [inline]
__do_sys_mount fs/namespace.c:4224 [inline]
__se_sys_mount+0x313/0x410 fs/namespace.c:4201
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #2 (&oi->ip_xattr_sem){++++}-{4:4}:
down_read+0x97/0x1f0 kernel/locking/rwsem.c:1537
ocfs2_init_acl+0x1a5/0x7b0 fs/ocfs2/acl.c:367
ocfs2_mknod+0x12ff/0x2030 fs/ocfs2/namei.c:413
ocfs2_mkdir+0x181/0x420 fs/ocfs2/namei.c:659
vfs_mkdir+0x52d/0x5d0 fs/namei.c:5130
do_mkdirat+0x27a/0x4b0 fs/namei.c:5164
__do_sys_mkdirat fs/namei.c:5186 [inline]
__se_sys_mkdirat fs/namei.c:5184 [inline]
__x64_sys_mkdirat+0x87/0xa0 fs/namei.c:5184
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #1 (&journal->j_trans_barrier){.+.+}-{4:4}:
down_read+0x97/0x1f0 kernel/locking/rwsem.c:1537
ocfs2_start_trans+0x36b/0x6d0 fs/ocfs2/journal.c:372
ocfs2_shutdown_local_alloc+0x200/0xa10 fs/ocfs2/localalloc.c:417
ocfs2_dismount_volume+0x1e9/0x8b0 fs/ocfs2/super.c:1825
generic_shutdown_super+0x135/0x2c0 fs/super.c:643
kill_block_super+0x44/0x90 fs/super.c:1722
deactivate_locked_super+0xbc/0x130 fs/super.c:474
cleanup_mnt+0x425/0x4c0 fs/namespace.c:1318
task_work_run+0x1d4/0x260 kernel/task_work.c:233
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
__exit_to_user_mode_loop kernel/entry/common.c:44 [inline]
exit_to_user_mode_loop+0xff/0x4f0 kernel/entry/common.c:75
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
do_syscall_64+0x2e3/0xf80 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #0 (sb_internal#3){.+.+}-{0:0}:
check_prev_add kernel/locking/lockdep.c:3165 [inline]
check_prevs_add kernel/locking/lockdep.c:3284 [inline]
validate_chain kernel/locking/lockdep.c:3908 [inline]
__lock_acquire+0x15a6/0x2cf0 kernel/locking/lockdep.c:5237
lock_acquire+0x117/0x340 kernel/locking/lockdep.c:5868
percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline]
percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline]
__sb_start_write include/linux/fs/super.h:19 [inline]
sb_start_intwrite include/linux/fs/super.h:177 [inline]
ocfs2_start_trans+0x26b/0x6d0 fs/ocfs2/journal.c:370
ocfs2_setattr+0x959/0x1b20 fs/ocfs2/file.c:1263
notify_change+0xc18/0xf60 fs/attr.c:546
ovl_do_notify_change fs/overlayfs/overlayfs.h:203 [inline]
ovl_workdir_create+0x717/0x900 fs/overlayfs/super.c:379
ovl_make_workdir fs/overlayfs/super.c:682 [inline]
ovl_get_workdir fs/overlayfs/super.c:840 [inline]
ovl_fill_super_creds fs/overlayfs/super.c:1453 [inline]
ovl_fill_super+0x188f/0x5a90 fs/overlayfs/super.c:1567
vfs_get_super fs/super.c:1324 [inline]
get_tree_nodev+0xbb/0x150 fs/super.c:1343
vfs_get_tree+0x92/0x2a0 fs/super.c:1751
fc_mount fs/namespace.c:1199 [inline]
do_new_mount_fc fs/namespace.c:3636 [inline]
do_new_mount+0x302/0xa10 fs/namespace.c:3712
do_mount fs/namespace.c:4035 [inline]
__do_sys_mount fs/namespace.c:4224 [inline]
__se_sys_mount+0x313/0x410 fs/namespace.c:4201
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
other info that might help us debug this:
Chain exists of:
sb_internal#3 --> &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);
rlock(sb_internal#3);
*** DEADLOCK ***
4 locks held by syz.1.70/6453:
#0: ffff88803b6f00d0 (&type->s_umount_key#61/1){+.+.}-{4:4}, at: alloc_super+0x28c/0xab0 fs/super.c:344
#1: ffff88805ecc2480 (sb_writers#19){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:499
#2: ffff888049259c40 (&sb->s_type->i_mutex_key#28){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline]
#2: ffff888049259c40 (&sb->s_type->i_mutex_key#28){++++}-{4:4}, at: ovl_workdir_create+0x6a1/0x900 fs/overlayfs/super.c:378
#3: ffff888049259890 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}, at: ocfs2_setattr+0x94a/0x1b20 fs/ocfs2/file.c:1262
stack backtrace:
CPU: 1 UID: 0 PID: 6453 Comm: syz.1.70 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
print_circular_bug+0x2e2/0x300 kernel/locking/lockdep.c:2043
check_noncircular+0x12e/0x150 kernel/locking/lockdep.c:2175
check_prev_add kernel/locking/lockdep.c:3165 [inline]
check_prevs_add kernel/locking/lockdep.c:3284 [inline]
validate_chain kernel/locking/lockdep.c:3908 [inline]
__lock_acquire+0x15a6/0x2cf0 kernel/locking/lockdep.c:5237
lock_acquire+0x117/0x340 kernel/locking/lockdep.c:5868
percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline]
percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline]
__sb_start_write include/linux/fs/super.h:19 [inline]
sb_start_intwrite include/linux/fs/super.h:177 [inline]
ocfs2_start_trans+0x26b/0x6d0 fs/ocfs2/journal.c:370
ocfs2_setattr+0x959/0x1b20 fs/ocfs2/file.c:1263
notify_change+0xc18/0xf60 fs/attr.c:546
ovl_do_notify_change fs/overlayfs/overlayfs.h:203 [inline]
ovl_workdir_create+0x717/0x900 fs/overlayfs/super.c:379
ovl_make_workdir fs/overlayfs/super.c:682 [inline]
ovl_get_workdir fs/overlayfs/super.c:840 [inline]
ovl_fill_super_creds fs/overlayfs/super.c:1453 [inline]
ovl_fill_super+0x188f/0x5a90 fs/overlayfs/super.c:1567
vfs_get_super fs/super.c:1324 [inline]
get_tree_nodev+0xbb/0x150 fs/super.c:1343
vfs_get_tree+0x92/0x2a0 fs/super.c:1751
fc_mount fs/namespace.c:1199 [inline]
do_new_mount_fc fs/namespace.c:3636 [inline]
do_new_mount+0x302/0xa10 fs/namespace.c:3712
do_mount fs/namespace.c:4035 [inline]
__do_sys_mount fs/namespace.c:4224 [inline]
__se_sys_mount+0x313/0x410 fs/namespace.c:4201
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbcac4cf749
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:00007fbcaa72e038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fbcac725fa0 RCX: 00007fbcac4cf749
RDX: 0000200000000000 RSI: 0000200000000100 RDI: 0000000000000000
RBP: 00007fbcac553f91 R08: 00002000000000c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbcac726038 R14: 00007fbcac725fa0 R15: 00007ffc68284ff8
overlayfs: upper fs does not support tmpfile.
overlayfs: upper fs does not support RENAME_WHITEOUT.
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in fs/ocfs2/xattr.c:1955:3
index 2 is out of range for type 'struct ocfs2_xattr_entry[] __counted_by(xh_count)' (aka 'struct ocfs2_xattr_entry[]')
CPU: 0 UID: 0 PID: 6453 Comm: syz.1.70 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
ubsan_epilogue+0xa/0x40 lib/ubsan.c:233
__ubsan_handle_out_of_bounds+0xe9/0xf0 lib/ubsan.c:455
ocfs2_xa_remove_entry+0x36d/0x3e0 fs/ocfs2/xattr.c:1955
ocfs2_xa_remove fs/ocfs2/xattr.c:2043 [inline]
ocfs2_xa_set+0xaf4/0x2a70 fs/ocfs2/xattr.c:2247
ocfs2_xattr_block_set+0x3ca/0x31b0 fs/ocfs2/xattr.c:2985
__ocfs2_xattr_set_handle+0x27e/0xf20 fs/ocfs2/xattr.c:-1
ocfs2_xattr_set+0xde8/0x11f0 fs/ocfs2/xattr.c:3650
__vfs_removexattr+0x431/0x470 fs/xattr.c:518
__vfs_removexattr_locked+0x1ee/0x230 fs/xattr.c:553
vfs_removexattr+0x80/0x1b0 fs/xattr.c:575
ovl_do_removexattr fs/overlayfs/overlayfs.h:335 [inline]
ovl_removexattr fs/overlayfs/overlayfs.h:343 [inline]
ovl_make_workdir fs/overlayfs/super.c:760 [inline]
ovl_get_workdir fs/overlayfs/super.c:840 [inline]
ovl_fill_super_creds fs/overlayfs/super.c:1453 [inline]
ovl_fill_super+0x487b/0x5a90 fs/overlayfs/super.c:1567
vfs_get_super fs/super.c:1324 [inline]
get_tree_nodev+0xbb/0x150 fs/super.c:1343
vfs_get_tree+0x92/0x2a0 fs/super.c:1751
fc_mount fs/namespace.c:1199 [inline]
do_new_mount_fc fs/namespace.c:3636 [inline]
do_new_mount+0x302/0xa10 fs/namespace.c:3712
do_mount fs/namespace.c:4035 [inline]
__do_sys_mount fs/namespace.c:4224 [inline]
__se_sys_mount+0x313/0x410 fs/namespace.c:4201
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbcac4cf749
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:00007fbcaa72e038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fbcac725fa0 RCX: 00007fbcac4cf749
RDX: 0000200000000000 RSI: 0000200000000100 RDI: 0000000000000000
RBP: 00007fbcac553f91 R08: 00002000000000c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbcac726038 R14: 00007fbcac725fa0 R15: 00007ffc68284ff8
---[ end trace ]---