======================================================
WARNING: possible circular locking dependency detected
6.1.124-syzkaller #0 Not tainted
------------------------------------------------------
syz.3.201/5443 is trying to acquire lock:
ffff8880562dc7a0 (mapping.invalidate_lock#6){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:813 [inline]
ffff8880562dc7a0 (mapping.invalidate_lock#6){++++}-{3:3}, at: filemap_fault+0x640/0x17e0 mm/filemap.c:3219
but task is already holding lock:
ffff888017c6ea58 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
ffff888017c6ea58 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5320 [inline]
ffff888017c6ea58 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x2e/0x2e0 mm/memory.c:5382
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&mm->mmap_lock){++++}-{3:3}:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
__might_fault+0xbd/0x110 mm/memory.c:5851
_copy_to_user+0x26/0x130 lib/usercopy.c:36
copy_to_user include/linux/uaccess.h:169 [inline]
ni_fiemap+0x1672/0x18a0 fs/ntfs3/frecord.c:2140
ntfs_fiemap+0x12e/0x170 fs/ntfs3/file.c:1254
ioctl_fiemap fs/ioctl.c:219 [inline]
do_vfs_ioctl+0x18e9/0x2a90 fs/ioctl.c:810
__do_sys_ioctl fs/ioctl.c:868 [inline]
__se_sys_ioctl+0x81/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
-> #1 (&ni->ni_lock/5){+.+.}-{3:3}:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
__mutex_lock_common kernel/locking/mutex.c:603 [inline]
__mutex_lock+0x132/0xd80 kernel/locking/mutex.c:747
ni_lock fs/ntfs3/ntfs_fs.h:1101 [inline]
ntfs_fallocate+0x731/0x1020 fs/ntfs3/file.c:647
vfs_fallocate+0x547/0x6b0 fs/open.c:323
ksys_fallocate fs/open.c:346 [inline]
__do_sys_fallocate fs/open.c:354 [inline]
__se_sys_fallocate fs/open.c:352 [inline]
__x64_sys_fallocate+0xb9/0x100 fs/open.c:352
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
-> #0 (mapping.invalidate_lock#6){++++}-{3:3}:
check_prev_add kernel/locking/lockdep.c:3090 [inline]
check_prevs_add kernel/locking/lockdep.c:3209 [inline]
validate_chain+0x1661/0x5950 kernel/locking/lockdep.c:3825
__lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
down_read+0xad/0xa30 kernel/locking/rwsem.c:1520
filemap_invalidate_lock_shared include/linux/fs.h:813 [inline]
filemap_fault+0x640/0x17e0 mm/filemap.c:3219
__do_fault+0x136/0x4f0 mm/memory.c:4278
do_shared_fault mm/memory.c:4684 [inline]
do_fault mm/memory.c:4762 [inline]
handle_pte_fault mm/memory.c:5029 [inline]
__handle_mm_fault mm/memory.c:5171 [inline]
handle_mm_fault+0x2243/0x5340 mm/memory.c:5292
do_user_addr_fault arch/x86/mm/fault.c:1340 [inline]
handle_page_fault arch/x86/mm/fault.c:1431 [inline]
exc_page_fault+0x26f/0x620 arch/x86/mm/fault.c:1487
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:608
other info that might help us debug this:
Chain exists of:
mapping.invalidate_lock#6 --> &ni->ni_lock/5 --> &mm->mmap_lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&mm->mmap_lock);
lock(&ni->ni_lock/5);
lock(&mm->mmap_lock);
lock(mapping.invalidate_lock#6);
*** DEADLOCK ***
1 lock held by syz.3.201/5443:
#0: ffff888017c6ea58 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#0: ffff888017c6ea58 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5320 [inline]
#0: ffff888017c6ea58 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x2e/0x2e0 mm/memory.c:5382
stack backtrace:
CPU: 0 PID: 5443 Comm: syz.3.201 Not tainted 6.1.124-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
check_noncircular+0x2fa/0x3b0 kernel/locking/lockdep.c:2170
check_prev_add kernel/locking/lockdep.c:3090 [inline]
check_prevs_add kernel/locking/lockdep.c:3209 [inline]
validate_chain+0x1661/0x5950 kernel/locking/lockdep.c:3825
__lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
down_read+0xad/0xa30 kernel/locking/rwsem.c:1520
filemap_invalidate_lock_shared include/linux/fs.h:813 [inline]
filemap_fault+0x640/0x17e0 mm/filemap.c:3219
__do_fault+0x136/0x4f0 mm/memory.c:4278
do_shared_fault mm/memory.c:4684 [inline]
do_fault mm/memory.c:4762 [inline]
handle_pte_fault mm/memory.c:5029 [inline]
__handle_mm_fault mm/memory.c:5171 [inline]
handle_mm_fault+0x2243/0x5340 mm/memory.c:5292
do_user_addr_fault arch/x86/mm/fault.c:1340 [inline]
handle_page_fault arch/x86/mm/fault.c:1431 [inline]
exc_page_fault+0x26f/0x620 arch/x86/mm/fault.c:1487
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:608
RIP: 0033:0x7f3caa94dca5
Code: e0 e9 a6 fd ff ff c5 fe 6f 4e 20 f7 c1 00 0e 00 00 75 67 49 89 c9 48 8d 4c 16 ff 48 83 ce 3f 4a 8d 7c 0e 01 48 29 f1 48 ff c6 <f3> a4 c4 c1 7e 7f 00 c4 c1 7e 7f 48 20 e9 70 fd ff ff 66 0f 1f 84
RSP: 002b:00007ffe47482638 EFLAGS: 00010216
RAX: 0000000020009640 RBX: 0000000000000004 RCX: 0000000000009771
RDX: 00000000000097b1 RSI: 00007f3caa21f4c0 RDI: 0000000020009680
RBP: 00007ffe47482718 R08: 0000000020009640 R09: ffff80c375dea1c0
R10: 0000000000000000 R11: 0000000000000002 R12: 0000000000023ea5
R13: 00007f3caab75fa0 R14: 0000000000000032 R15: fffffffffffffffe
</TASK>