loop0: detected capacity change from 0 to 1024
EXT4-fs: Ignoring removed orlov option
EXT4-fs: Ignoring removed nomblk_io_submit option
======================================================
WARNING: possible circular locking dependency detected
6.10.0-rc7-syzkaller-gc912bf709078 #0 Not tainted
------------------------------------------------------
syz-executor229/6594 is trying to acquire lock:
ffff0000e1580400 (&ea_inode->i_rwsem#8/1){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline]
ffff0000e1580400 (&ea_inode->i_rwsem#8/1){+.+.}-{3:3}, at: ext4_xattr_inode_iget+0x344/0x4dc fs/ext4/xattr.c:461
but task is already holding lock:
ffff0000df2b8c88 (&ei->i_data_sem/3){++++}-{3:3}, at: ext4_truncate+0x7d0/0x1060 fs/ext4/inode.c:4134
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&ei->i_data_sem/3){++++}-{3:3}:
down_write+0x50/0xc0 kernel/locking/rwsem.c:1579
ext4_update_i_disksize fs/ext4/ext4.h:3386 [inline]
ext4_xattr_inode_write fs/ext4/xattr.c:1446 [inline]
ext4_xattr_inode_lookup_create+0x1200/0x1918 fs/ext4/xattr.c:1596
ext4_xattr_ibody_set+0x1b0/0x604 fs/ext4/xattr.c:2263
ext4_xattr_set_handle+0xb64/0x12d0 fs/ext4/xattr.c:2440
ext4_xattr_set+0x1e0/0x354 fs/ext4/xattr.c:2554
ext4_xattr_trusted_set+0x4c/0x64 fs/ext4/xattr_trusted.c:38
__vfs_setxattr+0x3d8/0x400 fs/xattr.c:200
__vfs_setxattr_noperm+0x110/0x578 fs/xattr.c:234
__vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:295
vfs_setxattr+0x1a8/0x344 fs/xattr.c:321
do_setxattr fs/xattr.c:629 [inline]
setxattr+0x208/0x29c fs/xattr.c:652
path_setxattr+0x17c/0x258 fs/xattr.c:671
__do_sys_setxattr fs/xattr.c:687 [inline]
__se_sys_setxattr fs/xattr.c:683 [inline]
__arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:683
__invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:131
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:150
el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
-> #0 (&ea_inode->i_rwsem#8/1){+.+.}-{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+0x3384/0x763c kernel/locking/lockdep.c:5137
lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5754
down_write+0x50/0xc0 kernel/locking/rwsem.c:1579
inode_lock include/linux/fs.h:791 [inline]
ext4_xattr_inode_iget+0x344/0x4dc fs/ext4/xattr.c:461
ext4_xattr_inode_get+0x12c/0x3a0 fs/ext4/xattr.c:535
ext4_xattr_move_to_block fs/ext4/xattr.c:2636 [inline]
ext4_xattr_make_inode_space fs/ext4/xattr.c:2738 [inline]
ext4_expand_extra_isize_ea+0xbc8/0x16c0 fs/ext4/xattr.c:2830
__ext4_expand_extra_isize+0x290/0x348 fs/ext4/inode.c:5782
ext4_try_to_expand_extra_isize fs/ext4/inode.c:5825 [inline]
__ext4_mark_inode_dirty+0x458/0x868 fs/ext4/inode.c:5903
ext4_ext_truncate+0x94/0x1d4 fs/ext4/extents.c:4432
ext4_truncate+0x9c8/0x1060 fs/ext4/inode.c:4139
ext4_evict_inode+0xaf0/0x10f0 fs/ext4/inode.c:258
evict+0x260/0x68c fs/inode.c:667
iput_final fs/inode.c:1741 [inline]
iput+0x74c/0x830 fs/inode.c:1767
dentry_unlink_inode+0x394/0x4d4 fs/dcache.c:403
__dentry_kill+0x178/0x5e8 fs/dcache.c:606
dput+0x1b8/0x290 fs/dcache.c:848
do_renameat2+0x9d4/0xe40 fs/namei.c:5099
__do_sys_renameat2 fs/namei.c:5131 [inline]
__se_sys_renameat2 fs/namei.c:5128 [inline]
__arm64_sys_renameat2+0xe0/0xfc fs/namei.c:5128
__invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:131
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:150
el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
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-executor229/6594:
#0: ffff0000d9d50420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409
#1: ffff0000d9d50730 (&type->s_vfs_rename_key){+.+.}-{3:3}, at: lock_rename fs/namei.c:3125 [inline]
#1: ffff0000d9d50730 (&type->s_vfs_rename_key){+.+.}-{3:3}, at: do_renameat2+0x4a0/0xe40 fs/namei.c:5032
#2: ffff0000df2ba200 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:826 [inline]
#2: ffff0000df2ba200 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: lock_two_directories+0x144/0x214 fs/namei.c:3091
#3: ffff0000df2b8400 (&type->i_mutex_dir_key#3/5){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:826 [inline]
#3: ffff0000df2b8400 (&type->i_mutex_dir_key#3/5){+.+.}-{3:3}, at: lock_two_directories+0x16c/0x214 fs/namei.c:3092
#4: ffff0000d9d50610 (sb_internal){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1655 [inline]
#4: ffff0000d9d50610 (sb_internal){.+.+}-{0:0}, at: sb_start_intwrite include/linux/fs.h:1838 [inline]
#4: ffff0000d9d50610 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x2c0/0x10f0 fs/ext4/inode.c:212
#5: ffff0000df2b8c88 (&ei->i_data_sem/3){++++}-{3:3}, at: ext4_truncate+0x7d0/0x1060 fs/ext4/inode.c:4134
#6: ffff0000df2b8ac8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_trylock_xattr fs/ext4/xattr.h:162 [inline]
#6: ffff0000df2b8ac8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_try_to_expand_extra_isize fs/ext4/inode.c:5822 [inline]
#6: ffff0000df2b8ac8 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x3d8/0x868 fs/ext4/inode.c:5903
stack backtrace:
CPU: 1 PID: 6594 Comm: syz-executor229 Not tainted 6.10.0-rc7-syzkaller-gc912bf709078 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call trace:
dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:317
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:114
dump_stack+0x1c/0x28 lib/dump_stack.c:123
print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2060
check_noncircular+0x310/0x404 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+0x3384/0x763c kernel/locking/lockdep.c:5137
lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5754
down_write+0x50/0xc0 kernel/locking/rwsem.c:1579
inode_lock include/linux/fs.h:791 [inline]
ext4_xattr_inode_iget+0x344/0x4dc fs/ext4/xattr.c:461
ext4_xattr_inode_get+0x12c/0x3a0 fs/ext4/xattr.c:535
ext4_xattr_move_to_block fs/ext4/xattr.c:2636 [inline]
ext4_xattr_make_inode_space fs/ext4/xattr.c:2738 [inline]
ext4_expand_extra_isize_ea+0xbc8/0x16c0 fs/ext4/xattr.c:2830
__ext4_expand_extra_isize+0x290/0x348 fs/ext4/inode.c:5782
ext4_try_to_expand_extra_isize fs/ext4/inode.c:5825 [inline]
__ext4_mark_inode_dirty+0x458/0x868 fs/ext4/inode.c:5903
ext4_ext_truncate+0x94/0x1d4 fs/ext4/extents.c:4432
ext4_truncate+0x9c8/0x1060 fs/ext4/inode.c:4139
ext4_evict_inode+0xaf0/0x10f0 fs/ext4/inode.c:258
evict+0x260/0x68c fs/inode.c:667
iput_final fs/inode.c:1741 [inline]
iput+0x74c/0x830 fs/inode.c:1767
dentry_unlink_inode+0x394/0x4d4 fs/dcache.c:403
__dentry_kill+0x178/0x5e8 fs/dcache.c:606
dput+0x1b8/0x290 fs/dcache.c:848
do_renameat2+0x9d4/0xe40 fs/namei.c:5099
__do_sys_renameat2 fs/namei.c:5131 [inline]
__se_sys_renameat2 fs/namei.c:5128 [inline]
__arm64_sys_renameat2+0xe0/0xfc fs/namei.c:5128
__invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:131
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:150
el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598