EXT4-fs: Ignoring removed orlov option
EXT4-fs: Ignoring removed nomblk_io_submit option
EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
======================================================
WARNING: possible circular locking dependency detected
6.10.0-next-20240719-syzkaller #0 Not tainted
------------------------------------------------------
syz.2.1699/12244 is trying to acquire lock:
ffff88805ea049c0 (&ea_inode->i_rwsem#8/1){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:799 [inline]
ffff88805ea049c0 (&ea_inode->i_rwsem#8/1){+.+.}-{3:3}, at: ext4_xattr_inode_iget+0x3fe/0x580 fs/ext4/xattr.c:461
but task is already holding lock:
ffff88805ea03e58 (&ei->i_data_sem/3){++++}-{3:3}, at: ext4_truncate+0x991/0x11a0 fs/ext4/inode.c:4213
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&ei->i_data_sem/3){++++}-{3:3}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5822
down_write+0x99/0x220 kernel/locking/rwsem.c:1579
ext4_update_i_disksize fs/ext4/ext4.h:3395 [inline]
ext4_xattr_inode_write fs/ext4/xattr.c:1452 [inline]
ext4_xattr_inode_lookup_create+0x1707/0x1f90 fs/ext4/xattr.c:1602
ext4_xattr_ibody_set+0x214/0x730 fs/ext4/xattr.c:2269
ext4_xattr_set_handle+0xba6/0x1580 fs/ext4/xattr.c:2446
ext4_xattr_set+0x241/0x3d0 fs/ext4/xattr.c:2560
__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
do_setxattr fs/xattr.c:629 [inline]
setxattr+0x25d/0x2f0 fs/xattr.c:652
do_setxattrat+0x21f/0x300 fs/xattr.c:678
__do_sys_setxattr fs/xattr.c:718 [inline]
__se_sys_setxattr fs/xattr.c:714 [inline]
__x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:714
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 (&ea_inode->i_rwsem#8/1){+.+.}-{3:3}:
check_prev_add kernel/locking/lockdep.c:3158 [inline]
check_prevs_add kernel/locking/lockdep.c:3277 [inline]
validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3901
__lock_acquire+0x1384/0x2050 kernel/locking/lockdep.c:5199
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5822
down_write+0x99/0x220 kernel/locking/rwsem.c:1579
inode_lock include/linux/fs.h:799 [inline]
ext4_xattr_inode_iget+0x3fe/0x580 fs/ext4/xattr.c:461
ext4_xattr_inode_get+0x167/0x490 fs/ext4/xattr.c:535
ext4_xattr_move_to_block fs/ext4/xattr.c:2642 [inline]
ext4_xattr_make_inode_space fs/ext4/xattr.c:2744 [inline]
ext4_expand_extra_isize_ea+0xf21/0x1cf0 fs/ext4/xattr.c:2836
__ext4_expand_extra_isize+0x2fb/0x3e0 fs/ext4/inode.c:5861
ext4_try_to_expand_extra_isize fs/ext4/inode.c:5904 [inline]
__ext4_mark_inode_dirty+0x524/0x880 fs/ext4/inode.c:5982
ext4_ext_truncate+0x9f/0x2b0 fs/ext4/extents.c:4432
ext4_truncate+0xa18/0x11a0 fs/ext4/inode.c:4218
ext4_evict_inode+0x90f/0xf50 fs/ext4/inode.c:258
evict+0x2a8/0x630 fs/inode.c:669
__dentry_kill+0x20d/0x630 fs/dcache.c:610
dput+0x19f/0x2b0 fs/dcache.c:852
do_renameat2+0xda1/0x13f0 fs/namei.c:5129
__do_sys_renameat2 fs/namei.c:5161 [inline]
__se_sys_renameat2 fs/namei.c:5158 [inline]
__x64_sys_renameat2+0xce/0xe0 fs/namei.c:5158
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:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&ei->i_data_sem/3);
lock(&ea_inode->i_rwsem#8/1);
lock(&ei->i_data_sem/3);
lock(&ea_inode->i_rwsem#8/1);
*** DEADLOCK ***
7 locks held by syz.2.1699/12244:
#0: ffff88802492e420 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515
#1: ffff88802492e730 (&type->s_vfs_rename_key#4){+.+.}-{3:3}, at: lock_rename fs/namei.c:3155 [inline]
#1: ffff88802492e730 (&type->s_vfs_rename_key#4){+.+.}-{3:3}, at: do_renameat2+0x5cf/0x13f0 fs/namei.c:5062
#2: ffff88805ea021e0 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:834 [inline]
#2: ffff88805ea021e0 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: lock_two_directories+0x145/0x220 fs/namei.c:3121
#3: ffff88805ea067a8 (&type->i_mutex_dir_key#3/5){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:834 [inline]
#3: ffff88805ea067a8 (&type->i_mutex_dir_key#3/5){+.+.}-{3:3}, at: lock_two_directories+0x16f/0x220 fs/namei.c:3122
#4: ffff88802492e610 (sb_internal){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1675 [inline]
#4: ffff88802492e610 (sb_internal){.+.+}-{0:0}, at: sb_start_intwrite include/linux/fs.h:1858 [inline]
#4: ffff88802492e610 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x2f4/0xf50 fs/ext4/inode.c:212
#5: ffff88805ea03e58 (&ei->i_data_sem/3){++++}-{3:3}, at: ext4_truncate+0x991/0x11a0 fs/ext4/inode.c:4213
#6: ffff88805ea03c98 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_trylock_xattr fs/ext4/xattr.h:162 [inline]
#6: ffff88805ea03c98 (&ei->xattr_sem){++++}-{3:3}, at: ext4_try_to_expand_extra_isize fs/ext4/inode.c:5901 [inline]
#6: ffff88805ea03c98 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x491/0x880 fs/ext4/inode.c:5982
stack backtrace:
CPU: 1 UID: 0 PID: 12244 Comm: syz.2.1699 Not tainted 6.10.0-next-20240719-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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:2074
check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2203
check_prev_add kernel/locking/lockdep.c:3158 [inline]
check_prevs_add kernel/locking/lockdep.c:3277 [inline]
validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3901
__lock_acquire+0x1384/0x2050 kernel/locking/lockdep.c:5199
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5822
down_write+0x99/0x220 kernel/locking/rwsem.c:1579
inode_lock include/linux/fs.h:799 [inline]
ext4_xattr_inode_iget+0x3fe/0x580 fs/ext4/xattr.c:461
ext4_xattr_inode_get+0x167/0x490 fs/ext4/xattr.c:535
ext4_xattr_move_to_block fs/ext4/xattr.c:2642 [inline]
ext4_xattr_make_inode_space fs/ext4/xattr.c:2744 [inline]
ext4_expand_extra_isize_ea+0xf21/0x1cf0 fs/ext4/xattr.c:2836
__ext4_expand_extra_isize+0x2fb/0x3e0 fs/ext4/inode.c:5861
ext4_try_to_expand_extra_isize fs/ext4/inode.c:5904 [inline]
__ext4_mark_inode_dirty+0x524/0x880 fs/ext4/inode.c:5982
ext4_ext_truncate+0x9f/0x2b0 fs/ext4/extents.c:4432
ext4_truncate+0xa18/0x11a0 fs/ext4/inode.c:4218
ext4_evict_inode+0x90f/0xf50 fs/ext4/inode.c:258
evict+0x2a8/0x630 fs/inode.c:669
__dentry_kill+0x20d/0x630 fs/dcache.c:610
dput+0x19f/0x2b0 fs/dcache.c:852
do_renameat2+0xda1/0x13f0 fs/namei.c:5129
__do_sys_renameat2 fs/namei.c:5161 [inline]
__se_sys_renameat2 fs/namei.c:5158 [inline]
__x64_sys_renameat2+0xce/0xe0 fs/namei.c:5158
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: 0033:0x7fc901975b59
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:00007fc902800048 EFLAGS: 00000246 ORIG_RAX: 000000000000013c
RAX: ffffffffffffffda RBX: 00007fc901b05f60 RCX: 00007fc901975b59
RDX: 0000000000000005 RSI: 0000000020000080 RDI: 0000000000000006
RBP: 00007fc9019e4e5d R08: 0000000000000000 R09: 0000000000000000
R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc901b05f60 R15: 00007fff74c50e68
</TASK>