syzbot

======================================================
WARNING: possible circular locking dependency detected
5.15.166-syzkaller #0 Not tainted
------------------------------------------------------
syz.2.627/5862 is trying to acquire lock:
ffff8880622ad660 (mapping.invalidate_lock#5){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:844 [inline]
ffff8880622ad660 (mapping.invalidate_lock#5){.+.+}-{3:3}, at: filemap_fault+0x708/0x1470 mm/filemap.c:3081

but task is already holding lock:
ffff88807dea7128 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
ffff88807dea7128 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault arch/x86/mm/fault.c:1298 [inline]
ffff88807dea7128 (&mm->mmap_lock){++++}-{3:3}, at: handle_page_fault arch/x86/mm/fault.c:1445 [inline]
ffff88807dea7128 (&mm->mmap_lock){++++}-{3:3}, at: exc_page_fault+0x181/0x700 arch/x86/mm/fault.c:1501

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #2 (&mm->mmap_lock){++++}-{3:3}:
       lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
       __might_fault+0xb4/0x110 mm/memory.c:5327
       _copy_to_user+0x28/0x130 lib/usercopy.c:35
       copy_to_user include/linux/uaccess.h:200 [inline]
       fiemap_fill_next_extent+0x231/0x410 fs/ioctl.c:144
       ni_fiemap+0x9ae/0x1230 fs/ntfs3/frecord.c:1996
       ntfs_fiemap+0x12e/0x170 fs/ntfs3/file.c:1224
       ioctl_fiemap fs/ioctl.c:219 [inline]
       do_vfs_ioctl+0x1934/0x2b70 fs/ioctl.c:814
       __do_sys_ioctl fs/ioctl.c:872 [inline]
       __se_sys_ioctl+0x81/0x160 fs/ioctl.c:860
       do_syscall_x64 arch/x86/entry/common.c:50 [inline]
       do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
       entry_SYSCALL_64_after_hwframe+0x66/0xd0

-> #1 (&ni->file.run_lock){.+.+}-{3:3}:
       lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
       down_read+0x45/0x2e0 kernel/locking/rwsem.c:1498
       attr_data_get_block+0x26a/0x24e0 fs/ntfs3/attrib.c:831
       ntfs_get_block_vbo+0x3bc/0x1070 fs/ntfs3/inode.c:591
       do_mpage_readpage+0x6c8/0x1f70 fs/mpage.c:231
       mpage_readahead+0x427/0x9b0 fs/mpage.c:389
       read_pages+0x159/0x8e0 mm/readahead.c:130
       page_cache_ra_unbounded+0x7b0/0x930 mm/readahead.c:239
       page_cache_sync_readahead include/linux/pagemap.h:833 [inline]
       filemap_get_pages mm/filemap.c:2551 [inline]
       filemap_read+0x71c/0x2980 mm/filemap.c:2634
       __kernel_read+0x5ac/0xa60 fs/read_write.c:443
       integrity_kernel_read+0xac/0xf0 security/integrity/iint.c:228
       ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:485 [inline]
       ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline]
       ima_calc_file_hash+0xa5d/0x1c00 security/integrity/ima/ima_crypto.c:573
       ima_collect_measurement+0x37e/0x800 security/integrity/ima/ima_api.c:255
       process_measurement+0x1363/0x21c0 security/integrity/ima/ima_main.c:351
       ima_file_check+0xf3/0x180 security/integrity/ima/ima_main.c:533
       do_open fs/namei.c:3610 [inline]
       path_openat+0x2748/0x2f20 fs/namei.c:3742
       do_filp_open+0x21c/0x460 fs/namei.c:3769
       do_sys_openat2+0x13b/0x4f0 fs/open.c:1253
       do_sys_open fs/open.c:1269 [inline]
       __do_sys_openat fs/open.c:1285 [inline]
       __se_sys_openat fs/open.c:1280 [inline]
       __x64_sys_openat+0x243/0x290 fs/open.c:1280
       do_syscall_x64 arch/x86/entry/common.c:50 [inline]
       do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
       entry_SYSCALL_64_after_hwframe+0x66/0xd0

-> #0 (mapping.invalidate_lock#5){.+.+}-{3:3}:
       check_prev_add kernel/locking/lockdep.c:3053 [inline]
       check_prevs_add kernel/locking/lockdep.c:3172 [inline]
       validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788
       __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
       lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
       down_read+0x45/0x2e0 kernel/locking/rwsem.c:1498
       filemap_invalidate_lock_shared include/linux/fs.h:844 [inline]
       filemap_fault+0x708/0x1470 mm/filemap.c:3081
       __do_fault+0x139/0x340 mm/memory.c:3898
       do_shared_fault mm/memory.c:4288 [inline]
       do_fault mm/memory.c:4366 [inline]
       handle_pte_fault mm/memory.c:4620 [inline]
       __handle_mm_fault mm/memory.c:4755 [inline]
       handle_mm_fault+0x275d/0x5960 mm/memory.c:4853
       do_user_addr_fault arch/x86/mm/fault.c:1357 [inline]
       handle_page_fault arch/x86/mm/fault.c:1445 [inline]
       exc_page_fault+0x271/0x700 arch/x86/mm/fault.c:1501
       asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568

other info that might help us debug this:

Chain exists of:
  mapping.invalidate_lock#5 --> &ni->file.run_lock --> &mm->mmap_lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&mm->mmap_lock);
                               lock(&ni->file.run_lock);
                               lock(&mm->mmap_lock);
  lock(mapping.invalidate_lock#5);

 *** DEADLOCK ***

1 lock held by syz.2.627/5862:
 #0: ffff88807dea7128 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
 #0: ffff88807dea7128 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault arch/x86/mm/fault.c:1298 [inline]
 #0: ffff88807dea7128 (&mm->mmap_lock){++++}-{3:3}, at: handle_page_fault arch/x86/mm/fault.c:1445 [inline]
 #0: ffff88807dea7128 (&mm->mmap_lock){++++}-{3:3}, at: exc_page_fault+0x181/0x700 arch/x86/mm/fault.c:1501

stack backtrace:
CPU: 0 PID: 5862 Comm: syz.2.627 Not tainted 5.15.166-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 check_noncircular+0x2f8/0x3b0 kernel/locking/lockdep.c:2133
 check_prev_add kernel/locking/lockdep.c:3053 [inline]
 check_prevs_add kernel/locking/lockdep.c:3172 [inline]
 validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788
 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
 down_read+0x45/0x2e0 kernel/locking/rwsem.c:1498
 filemap_invalidate_lock_shared include/linux/fs.h:844 [inline]
 filemap_fault+0x708/0x1470 mm/filemap.c:3081
 __do_fault+0x139/0x340 mm/memory.c:3898
 do_shared_fault mm/memory.c:4288 [inline]
 do_fault mm/memory.c:4366 [inline]
 handle_pte_fault mm/memory.c:4620 [inline]
 __handle_mm_fault mm/memory.c:4755 [inline]
 handle_mm_fault+0x275d/0x5960 mm/memory.c:4853
 do_user_addr_fault arch/x86/mm/fault.c:1357 [inline]
 handle_page_fault arch/x86/mm/fault.c:1445 [inline]
 exc_page_fault+0x271/0x700 arch/x86/mm/fault.c:1501
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x7fed0c9ef96b
Code: fa 10 73 2d 83 fa 08 73 46 83 fa 04 73 16 83 fa 01 7c 10 8a 0e 74 0a 0f b7 74 16 fe 66 89 74 17 fe 88 0f c3 8b 4c 16 fc 8b 36 <89> 4c 17 fc 89 37 c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 c5 fa 7f 07 c5
RSP: 002b:00007ffe93bc90e8 EFLAGS: 00010202
RAX: 0000000020001b80 RBX: 0000000000000004 RCX: 0000000064697072
RDX: 0000000000000005 RSI: 0000000069707267 RDI: 0000000020001b80
RBP: 00007fed0cbe1a80 R08: 00007fed0c8aa000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 0000000000031256
R13: 00007ffe93bc91f0 R14: 0000000000000032 R15: fffffffffffffffe
 </TASK>