ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
overlayfs: upper fs does not support tmpfile.
overlayfs: upper fs does not support RENAME_WHITEOUT.
======================================================
WARNING: possible circular locking dependency detected
6.14.0-rc2-syzkaller-00034-gfebbc555cf0f #0 Not tainted
------------------------------------------------------
syz-executor334/5825 is trying to acquire lock:
ffff88807403a640 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:877 [inline]
ffff88807403a640 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0x132/0x2840 fs/ocfs2/localalloc.c:636
but task is already holding lock:
ffff8880787b86f8 (&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:5851
down_write+0x99/0x220 kernel/locking/rwsem.c:1577
ocfs2_xattr_set_handle+0x539/0xa10 fs/ocfs2/xattr.c:3501
ocfs2_init_security_set+0xbd/0xd0 fs/ocfs2/xattr.c:7307
ocfs2_mknod+0x1ccf/0x2b30 fs/ocfs2/namei.c:419
ocfs2_mkdir+0x1ab/0x470 fs/ocfs2/namei.c:656
vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4313
do_mkdirat+0x264/0x3a0 fs/namei.c:4336
__do_sys_mkdir fs/namei.c:4356 [inline]
__se_sys_mkdir fs/namei.c:4354 [inline]
__x64_sys_mkdir+0x6c/0x80 fs/namei.c:4354
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:5851
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_mknod+0x143a/0x2b30 fs/ocfs2/namei.c:347
ocfs2_mkdir+0x1ab/0x470 fs/ocfs2/namei.c:656
vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4313
do_mkdirat+0x264/0x3a0 fs/namei.c:4336
__do_sys_mkdir fs/namei.c:4356 [inline]
__se_sys_mkdir fs/namei.c:4354 [inline]
__x64_sys_mkdir+0x6c/0x80 fs/namei.c:4354
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:5851
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_mknod+0x143a/0x2b30 fs/ocfs2/namei.c:347
ocfs2_mkdir+0x1ab/0x470 fs/ocfs2/namei.c:656
vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4313
do_mkdirat+0x264/0x3a0 fs/namei.c:4336
__do_sys_mkdir fs/namei.c:4356 [inline]
__se_sys_mkdir fs/namei.c:4354 [inline]
__x64_sys_mkdir+0x6c/0x80 fs/namei.c:4354
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#2){.+.+}-{0:0}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
percpu_down_read include/linux/percpu-rwsem.h:51 [inline]
__sb_start_write include/linux/fs.h:1785 [inline]
sb_start_intwrite include/linux/fs.h:1968 [inline]
ocfs2_start_trans+0x2b9/0x700 fs/ocfs2/journal.c:348
ocfs2_mknod+0x150c/0x2b30 fs/ocfs2/namei.c:361
ocfs2_mkdir+0x1ab/0x470 fs/ocfs2/namei.c:656
vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4313
do_mkdirat+0x264/0x3a0 fs/namei.c:4336
__do_sys_mkdir fs/namei.c:4356 [inline]
__se_sys_mkdir fs/namei.c:4354 [inline]
__x64_sys_mkdir+0x6c/0x80 fs/namei.c:4354
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]#5){+.+.}-{4:4}:
check_prev_add kernel/locking/lockdep.c:3163 [inline]
check_prevs_add kernel/locking/lockdep.c:3282 [inline]
validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3906
__lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
down_write+0x99/0x220 kernel/locking/rwsem.c:1577
inode_lock include/linux/fs.h:877 [inline]
ocfs2_reserve_local_alloc_bits+0x132/0x2840 fs/ocfs2/localalloc.c:636
ocfs2_reserve_clusters_with_limit+0x1b8/0xb60 fs/ocfs2/suballoc.c:1166
ocfs2_init_xattr_set_ctxt+0x420/0x8e0 fs/ocfs2/xattr.c:3286
ocfs2_xattr_set+0xf4e/0x1930 fs/ocfs2/xattr.c:3634
__vfs_setxattr+0x468/0x4a0 fs/xattr.c:200
__vfs_setxattr_noperm+0x12e/0x660 fs/xattr.c:234
vfs_setxattr+0x221/0x430 fs/xattr.c:321
ovl_do_setxattr fs/overlayfs/overlayfs.h:314 [inline]
ovl_setxattr fs/overlayfs/overlayfs.h:326 [inline]
ovl_make_workdir fs/overlayfs/super.c:714 [inline]
ovl_get_workdir+0xda0/0x1930 fs/overlayfs/super.c:826
ovl_fill_super+0x12a8/0x3560 fs/overlayfs/super.c:1394
vfs_get_super fs/super.c:1280 [inline]
get_tree_nodev+0xb7/0x140 fs/super.c:1299
vfs_get_tree+0x90/0x2b0 fs/super.c:1814
do_new_mount+0x2be/0xb40 fs/namespace.c:3560
do_mount fs/namespace.c:3900 [inline]
__do_sys_mount fs/namespace.c:4111 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
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]#5 --> 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]#5);
*** DEADLOCK ***
4 locks held by syz-executor334/5825:
#0: ffff88807c70c0e0 (&type->s_umount_key#43/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 fs/super.c:344
#1: ffff88803526c420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:547
#2: ffff8880787b89c0 (&sb->s_type->i_mutex_key#16){++++}-{4:4}, at: inode_lock include/linux/fs.h:877 [inline]
#2: ffff8880787b89c0 (&sb->s_type->i_mutex_key#16){++++}-{4:4}, at: vfs_setxattr+0x1e1/0x430 fs/xattr.c:320
#3: ffff8880787b86f8 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x633/0x1930 fs/ocfs2/xattr.c:3583
stack backtrace:
CPU: 1 UID: 0 PID: 5825 Comm: syz-executor334 Not tainted 6.14.0-rc2-syzkaller-00034-gfebbc555cf0f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
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:2076
check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2208
check_prev_add kernel/locking/lockdep.c:3163 [inline]
check_prevs_add kernel/locking/lockdep.c:3282 [inline]
validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3906
__lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
down_write+0x99/0x220 kernel/locking/rwsem.c:1577
inode_lock include/linux/fs.h:877 [inline]
ocfs2_reserve_local_alloc_bits+0x132/0x2840 fs/ocfs2/localalloc.c:636
ocfs2_reserve_clusters_with_limit+0x1b8/0xb60 fs/ocfs2/suballoc.c:1166
ocfs2_init_xattr_set_ctxt+0x420/0x8e0 fs/ocfs2/xattr.c:3286
ocfs2_xattr_set+0xf4e/0x1930 fs/ocfs2/xattr.c:3634
__vfs_setxattr+0x468/0x4a0 fs/xattr.c:200
__vfs_setxattr_noperm+0x12e/0x660 fs/xattr.c:234
vfs_setxattr+0x221/0x430 fs/xattr.c:321
ovl_do_setxattr fs/overlayfs/overlayfs.h:314 [inline]
ovl_setxattr fs/overlayfs/overlayfs.h:326 [inline]
ovl_make_workdir fs/overlayfs/super.c:714 [inline]
ovl_get_workdir+0xda0/0x1930 fs/overlayfs/super.c:826
ovl_fill_super+0x12a8/0x3560 fs/overlayfs/super.c:1394
vfs_get_super fs/super.c:1280 [inline]
get_tree_nodev+0xb7/0x140 fs/super.c:1299
vfs_get_tree+0x90/0x2b0 fs/super.c:1814
do_new_mount+0x2be/0xb40 fs/namespace.c:3560
do_mount fs/namespace.c:3900 [inline]
__do_sys_mount fs/namespace.c:4111 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
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: 0033:0x7fcf953f1179
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc05553938 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 79706f636174656d RCX: 00007fcf953f1179
RDX: 0000400000000000 RSI: 0000400000000080 RDI: 0000000000000000
RBP: 00007ffc05553948 R08: 0000400000000140 R09: 00007fcf953bd0f0