loop3: detected capacity change from 0 to 1024
======================================================
WARNING: possible circular locking dependency detected
6.10.0-rc1-syzkaller-00021-ge0cce98fe279 #0 Not tainted
------------------------------------------------------
syz-executor.3/9497 is trying to acquire lock:
ffff8880123f40b0 (&tree->tree_lock/2){+.+.}-{3:3}, at: hfsplus_find_init+0x195/0x200 fs/hfsplus/bfind.c:36
but task is already holding lock:
ffff8880123f60b0 (&tree->tree_lock){+.+.}-{3:3}, at: hfsplus_find_init+0x1a7/0x200 fs/hfsplus/bfind.c:30
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&tree->tree_lock){+.+.}-{3:3}:
__mutex_lock_common kernel/locking/mutex.c:608 [inline]
__mutex_lock+0x175/0x9c0 kernel/locking/mutex.c:752
hfsplus_file_truncate+0x886/0x9e0 fs/hfsplus/extents.c:595
hfsplus_setattr+0x1eb/0x310 fs/hfsplus/inode.c:265
notify_change+0x745/0x11f0 fs/attr.c:497
do_truncate+0x15c/0x220 fs/open.c:65
handle_truncate fs/namei.c:3308 [inline]
do_open fs/namei.c:3654 [inline]
path_openat+0x2505/0x29f0 fs/namei.c:3807
do_filp_open+0x1dc/0x430 fs/namei.c:3834
do_sys_openat2+0x17a/0x1e0 fs/open.c:1405
do_sys_open fs/open.c:1420 [inline]
__do_sys_creat fs/open.c:1496 [inline]
__se_sys_creat fs/open.c:1490 [inline]
__x64_sys_creat+0xcd/0x120 fs/open.c:1490
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #1 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}:
__mutex_lock_common kernel/locking/mutex.c:608 [inline]
__mutex_lock+0x175/0x9c0 kernel/locking/mutex.c:752
hfsplus_get_block+0x277/0x9e0 fs/hfsplus/extents.c:260
block_read_full_folio+0x392/0xa70 fs/buffer.c:2407
filemap_read_folio+0xe8/0x2c0 mm/filemap.c:2355
do_read_cache_folio+0x203/0x540 mm/filemap.c:3788
do_read_cache_page mm/filemap.c:3854 [inline]
read_cache_page+0x5b/0x160 mm/filemap.c:3863
read_mapping_page include/linux/pagemap.h:896 [inline]
__hfs_bnode_create+0x63e/0x870 fs/hfsplus/bnode.c:440
hfsplus_bnode_find+0x2c8/0xcb0 fs/hfsplus/bnode.c:486
hfsplus_brec_find+0x2b9/0x520 fs/hfsplus/bfind.c:183
hfsplus_find_attr+0xe6/0x190 fs/hfsplus/attributes.c:153
__hfsplus_getxattr+0x321/0x5f0 fs/hfsplus/xattr.c:520
hfsplus_getxattr+0x102/0x180 fs/hfsplus/xattr.c:588
hfsplus_security_getxattr+0x39/0x50 fs/hfsplus/xattr_security.c:20
vfs_getxattr_alloc+0x1c1/0x340 fs/xattr.c:393
ima_read_xattr+0x38/0x60 security/integrity/ima/ima_appraise.c:229
process_measurement+0x120b/0x23a0 security/integrity/ima/ima_main.c:353
ima_file_check+0xc1/0x110 security/integrity/ima/ima_main.c:572
security_file_post_open+0x70/0xc0 security/security.c:2982
do_open fs/namei.c:3652 [inline]
path_openat+0x17ec/0x29f0 fs/namei.c:3807
do_filp_open+0x1dc/0x430 fs/namei.c:3834
do_sys_openat2+0x17a/0x1e0 fs/open.c:1405
do_sys_open fs/open.c:1420 [inline]
__do_sys_open fs/open.c:1428 [inline]
__se_sys_open fs/open.c:1424 [inline]
__x64_sys_open+0x154/0x1e0 fs/open.c:1424
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #0 (&tree->tree_lock/2){+.+.}-{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+0x2478/0x3b30 kernel/locking/lockdep.c:5137
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719
__mutex_lock_common kernel/locking/mutex.c:608 [inline]
__mutex_lock+0x175/0x9c0 kernel/locking/mutex.c:752
hfsplus_find_init+0x195/0x200 fs/hfsplus/bfind.c:36
hfsplus_attr_exists+0x103/0x200 fs/hfsplus/attributes.c:178
__hfsplus_setxattr+0x4c6/0x2180 fs/hfsplus/xattr.c:336
hfsplus_setxattr+0x10c/0x180 fs/hfsplus/xattr.c:432
__vfs_setxattr+0x176/0x1e0 fs/xattr.c:200
__vfs_setxattr_noperm+0x127/0x660 fs/xattr.c:234
__vfs_setxattr_locked+0x182/0x260 fs/xattr.c:295
vfs_setxattr+0x146/0x350 fs/xattr.c:321
do_setxattr+0x146/0x170 fs/xattr.c:629
setxattr+0x15d/0x180 fs/xattr.c:652
path_setxattr+0x179/0x1e0 fs/xattr.c:671
__do_sys_setxattr fs/xattr.c:687 [inline]
__se_sys_setxattr fs/xattr.c:683 [inline]
__x64_sys_setxattr+0xc4/0x160 fs/xattr.c:683
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
other info that might help us debug this:
Chain exists of:
&tree->tree_lock/2 --> &HFSPLUS_I(inode)->extents_lock --> &tree->tree_lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&tree->tree_lock);
lock(&HFSPLUS_I(inode)->extents_lock);
lock(&tree->tree_lock);
lock(&tree->tree_lock/2);
*** DEADLOCK ***
3 locks held by syz-executor.3/9497:
#0: ffff88801ee2a420 (sb_writers#13){.+.+}-{0:0}, at: path_setxattr+0xc3/0x1e0 fs/xattr.c:669
#1: ffff88801209e840 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline]
#1: ffff88801209e840 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: vfs_setxattr+0x123/0x350 fs/xattr.c:320
#2: ffff8880123f60b0 (&tree->tree_lock){+.+.}-{3:3}, at: hfsplus_find_init+0x1a7/0x200 fs/hfsplus/bfind.c:30
stack backtrace:
CPU: 0 PID: 9497 Comm: syz-executor.3 Not tainted 6.10.0-rc1-syzkaller-00021-ge0cce98fe279 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
check_noncircular+0x31a/0x400 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+0x2478/0x3b30 kernel/locking/lockdep.c:5137
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719
__mutex_lock_common kernel/locking/mutex.c:608 [inline]
__mutex_lock+0x175/0x9c0 kernel/locking/mutex.c:752
hfsplus_find_init+0x195/0x200 fs/hfsplus/bfind.c:36
hfsplus_attr_exists+0x103/0x200 fs/hfsplus/attributes.c:178
__hfsplus_setxattr+0x4c6/0x2180 fs/hfsplus/xattr.c:336