======================================================
WARNING: possible circular locking dependency detected
6.13.0-rc7-syzkaller-00149-g9bffa1ad25b8 #0 Not tainted
------------------------------------------------------
syz.0.5753/23685 is trying to acquire lock:
ffff88807761a850 (&sb->s_type->i_mutex_key#26/4){+.+.}-{4:4}, at: vfs_rename+0x6a2/0xf00 fs/namei.c:5038
but task is already holding lock:
ffff888077572fa8 (&sb->s_type->i_mutex_key#26){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
ffff888077572fa8 (&sb->s_type->i_mutex_key#26){+.+.}-{4:4}, at: lock_two_nondirectories+0xe1/0x170 fs/inode.c:1281
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #4 (&sb->s_type->i_mutex_key#26){+.+.}-{4:4}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
down_write+0x99/0x220 kernel/locking/rwsem.c:1577
inode_lock include/linux/fs.h:818 [inline]
ntfs_file_mmap+0x5bc/0x850 fs/ntfs3/file.c:379
call_mmap include/linux/fs.h:2183 [inline]
mmap_file mm/internal.h:124 [inline]
__mmap_new_file_vma mm/vma.c:2291 [inline]
__mmap_new_vma mm/vma.c:2355 [inline]
__mmap_region+0x2250/0x2d30 mm/vma.c:2456
mmap_region+0x226/0x2c0 mm/mmap.c:1352
do_mmap+0x97a/0x10d0 mm/mmap.c:500
vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:575
ksys_mmap_pgoff+0x4eb/0x720 mm/mmap.c:546
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 (&mm->mmap_lock){++++}-{4:4}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
__might_fault+0xc6/0x120 mm/memory.c:6751
_inline_copy_to_user include/linux/uaccess.h:192 [inline]
_copy_to_user+0x2c/0xb0 lib/usercopy.c:26
copy_to_user include/linux/uaccess.h:225 [inline]
fiemap_fill_next_extent+0x235/0x410 fs/ioctl.c:145
ni_fiemap+0x96b/0x1220 fs/ntfs3/frecord.c:2037
ntfs_fiemap+0x132/0x180 fs/ntfs3/file.c:1360
ioctl_fiemap fs/ioctl.c:220 [inline]
do_vfs_ioctl+0x1c03/0x2e40 fs/ioctl.c:840
__do_sys_ioctl fs/ioctl.c:904 [inline]
__se_sys_ioctl+0x80/0x170 fs/ioctl.c:892
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 (&ni->ni_lock#2/5){+.+.}-{4:4}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735
ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline]
ntfs_link+0xf4/0x270 fs/ntfs3/namei.c:141
vfs_link+0x4f2/0x6e0 fs/namei.c:4793
do_linkat+0x555/0x6f0 fs/namei.c:4863
__do_sys_link fs/namei.c:4897 [inline]
__se_sys_link fs/namei.c:4895 [inline]
__x64_sys_link+0x82/0x90 fs/namei.c:4895
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 (&ni->ni_lock/6){+.+.}-{4:4}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735
ni_lock_dir fs/ntfs3/ntfs_fs.h:1115 [inline]
ntfs_rename+0x72f/0xd10 fs/ntfs3/namei.c:311
vfs_rename+0xbdd/0xf00 fs/namei.c:5067
do_renameat2+0xd94/0x13f0 fs/namei.c:5224
__do_sys_rename fs/namei.c:5271 [inline]
__se_sys_rename fs/namei.c:5269 [inline]
__x64_sys_rename+0x82/0x90 fs/namei.c:5269
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 (&sb->s_type->i_mutex_key#26/4){+.+.}-{4:4}:
check_prev_add kernel/locking/lockdep.c:3161 [inline]
check_prevs_add kernel/locking/lockdep.c:3280 [inline]
validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904
__lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
down_write_nested+0xa2/0x220 kernel/locking/rwsem.c:1693
vfs_rename+0x6a2/0xf00 fs/namei.c:5038
do_renameat2+0xd94/0x13f0 fs/namei.c:5224
__do_sys_rename fs/namei.c:5271 [inline]
__se_sys_rename fs/namei.c:5269 [inline]
__x64_sys_rename+0x82/0x90 fs/namei.c:5269
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:
&sb->s_type->i_mutex_key#26/4 --> &mm->mmap_lock --> &sb->s_type->i_mutex_key#26
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&sb->s_type->i_mutex_key#26);
lock(&mm->mmap_lock);
lock(&sb->s_type->i_mutex_key#26);
lock(&sb->s_type->i_mutex_key#26/4);
*** DEADLOCK ***
3 locks held by syz.0.5753/23685:
#0: ffff888032b14420 (sb_writers#20){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:516
#1: ffff88807761d460 (&type->i_mutex_dir_key#12/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:853 [inline]
#1: ffff88807761d460 (&type->i_mutex_dir_key#12/1){+.+.}-{4:4}, at: lock_rename fs/namei.c:3215 [inline]
#1: ffff88807761d460 (&type->i_mutex_dir_key#12/1){+.+.}-{4:4}, at: do_renameat2+0x62c/0x13f0 fs/namei.c:5159
#2: ffff888077572fa8 (&sb->s_type->i_mutex_key#26){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
#2: ffff888077572fa8 (&sb->s_type->i_mutex_key#26){+.+.}-{4:4}, at: lock_two_nondirectories+0xe1/0x170 fs/inode.c:1281
stack backtrace:
CPU: 1 UID: 0 PID: 23685 Comm: syz.0.5753 Not tainted 6.13.0-rc7-syzkaller-00149-g9bffa1ad25b8 #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:2074
check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2206
check_prev_add kernel/locking/lockdep.c:3161 [inline]
check_prevs_add kernel/locking/lockdep.c:3280 [inline]
validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904
__lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
down_write_nested+0xa2/0x220 kernel/locking/rwsem.c:1693
vfs_rename+0x6a2/0xf00 fs/namei.c:5038
do_renameat2+0xd94/0x13f0 fs/namei.c:5224
__do_sys_rename fs/namei.c:5271 [inline]
__se_sys_rename fs/namei.c:5269 [inline]
__x64_sys_rename+0x82/0x90 fs/namei.c:5269
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: 0033:0x7f5262b85d29
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:00007f526390c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f5262d75fa0 RCX: 00007f5262b85d29
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000020000340
RBP: 00007f5262c01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5262d75fa0 R15: 00007ffdab2f6668
</TASK>