====================================================== WARNING: possible circular locking dependency detected 5.15.164-syzkaller #0 Not tainted ------------------------------------------------------ syz.4.394/5680 is trying to acquire lock: ffff88805b431400 (mapping.invalidate_lock#8){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:844 [inline] ffff88805b431400 (mapping.invalidate_lock#8){.+.+}-{3:3}, at: filemap_fault+0x708/0x1470 mm/filemap.c:3081 but task is already holding lock: ffff888024681628 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] ffff888024681628 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault arch/x86/mm/fault.c:1298 [inline] ffff888024681628 (&mm->mmap_lock){++++}-{3:3}, at: handle_page_fault arch/x86/mm/fault.c:1445 [inline] ffff888024681628 (&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:5328 _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:1227 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:828 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#8){.+.+}-{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_read_fault mm/memory.c:4234 [inline] do_fault mm/memory.c:4362 [inline] handle_pte_fault mm/memory.c:4621 [inline] __handle_mm_fault mm/memory.c:4756 [inline] handle_mm_fault+0x376f/0x5950 mm/memory.c:4854 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 __get_user_nocheck_1+0x6/0x10 arch/x86/lib/getuser.S:103 fault_in_readable+0xce/0x2e0 mm/gup.c:1793 fault_in_iov_iter_readable+0x14a/0x1d0 lib/iov_iter.c:460 ntfs_compress_write+0xf42/0x1dd0 fs/ntfs3/file.c:998 ntfs_file_write_iter+0x3a2/0x540 fs/ntfs3/file.c:1145 call_write_iter include/linux/fs.h:2172 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0xacd/0xe50 fs/read_write.c:594 ksys_write+0x1a2/0x2c0 fs/read_write.c:647 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 other info that might help us debug this: Chain exists of: mapping.invalidate_lock#8 --> &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#8); *** DEADLOCK *** 4 locks held by syz.4.394/5680: #0: ffff8880754b1270 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x2cb/0x380 fs/file.c:1088 #1: ffff88807688e460 (sb_writers#17){.+.+}-{0:0}, at: vfs_write+0x29a/0xe50 fs/read_write.c:590 #2: ffff88805b432120 (&sb->s_type->i_mutex_key#24){+.+.}-{3:3}, at: inode_trylock include/linux/fs.h:809 [inline] #2: ffff88805b432120 (&sb->s_type->i_mutex_key#24){+.+.}-{3:3}, at: ntfs_file_write_iter+0x1ca/0x540 fs/ntfs3/file.c:1125 #3: ffff888024681628 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #3: ffff888024681628 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault arch/x86/mm/fault.c:1298 [inline] #3: ffff888024681628 (&mm->mmap_lock){++++}-{3:3}, at: handle_page_fault arch/x86/mm/fault.c:1445 [inline] #3: ffff888024681628 (&mm->mmap_lock){++++}-{3:3}, at: exc_page_fault+0x181/0x700 arch/x86/mm/fault.c:1501 stack backtrace: CPU: 0 PID: 5680 Comm: syz.4.394 Not tainted 5.15.164-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call Trace: __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_read_fault mm/memory.c:4234 [inline] do_fault mm/memory.c:4362 [inline] handle_pte_fault mm/memory.c:4621 [inline] __handle_mm_fault mm/memory.c:4756 [inline] handle_mm_fault+0x376f/0x5950 mm/memory.c:4854 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: 0010:__get_user_nocheck_1+0x6/0x10 arch/x86/lib/getuser.S:124 Code: d0 73 64 48 19 d2 48 21 d0 0f 01 cb 48 8b 10 31 c0 0f 01 ca c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 0f 01 cb 0f ae e8 <0f> b6 10 31 c0 0f 01 ca c3 90 0f 01 cb 0f ae e8 0f b7 10 31 c0 0f RSP: 0018:ffffc900035e7938 EFLAGS: 00050206 RAX: 00000000200000c0 RBX: 00000000200000c0 RCX: ffff8880230f1dc0 RDX: ffffc900061f9000 RSI: 00000000000000c0 RDI: 0000000000000000 RBP: ffffc900035e79f8 R08: ffffffff81b72ed3 R09: fffffbfff1f8e043 R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000000b R13: ffffc900035e7980 R14: dffffc0000000000 R15: 00000000200000c0 fault_in_readable+0xce/0x2e0 mm/gup.c:1793 fault_in_iov_iter_readable+0x14a/0x1d0 lib/iov_iter.c:460 ntfs_compress_write+0xf42/0x1dd0 fs/ntfs3/file.c:998 ntfs_file_write_iter+0x3a2/0x540 fs/ntfs3/file.c:1145 call_write_iter include/linux/fs.h:2172 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0xacd/0xe50 fs/read_write.c:594 ksys_write+0x1a2/0x2c0 fs/read_write.c:647 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 RIP: 0033:0x7f204dc489f9 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:00007f204be62048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f204ddd7208 RCX: 00007f204dc489f9 RDX: 000000000000000b RSI: 00000000200000c0 RDI: 0000000000000004 RBP: 00007f204dcb68ee R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f204ddd7208 R15: 00007fff1d4ddb68 ---------------- Code disassembly (best guess): 0: d0 73 64 shlb 0x64(%rbx) 3: 48 19 d2 sbb %rdx,%rdx 6: 48 21 d0 and %rdx,%rax 9: 0f 01 cb stac c: 48 8b 10 mov (%rax),%rdx f: 31 c0 xor %eax,%eax 11: 0f 01 ca clac 14: c3 ret 15: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 1c: 00 00 00 1f: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 24: 0f 01 cb stac 27: 0f ae e8 lfence * 2a: 0f b6 10 movzbl (%rax),%edx <-- trapping instruction 2d: 31 c0 xor %eax,%eax 2f: 0f 01 ca clac 32: c3 ret 33: 90 nop 34: 0f 01 cb stac 37: 0f ae e8 lfence 3a: 0f b7 10 movzwl (%rax),%edx 3d: 31 c0 xor %eax,%eax 3f: 0f .byte 0xf