ntfs3(loop4): failed to convert "0080" to macinuit ntfs3(loop4): failed to convert name for inode 1e. ntfs3(loop4): ino=1f, mi_enum_attr ntfs3(loop4): Mark volume as dirty due to NTFS errors ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.4.651/18497 is trying to acquire lock: ffff888037971f30 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock_killable+0x1d/0x70 include/linux/mmap_lock.h:609 but task is already holding lock: ffff88806796a738 (&ni->ni_lock#2/5){+.+.}-{4:4}, at: ni_lock fs/ntfs3/ntfs_fs.h:1247 [inline] ffff88806796a738 (&ni->ni_lock#2/5){+.+.}-{4:4}, at: ntfs_readdir+0x717/0xf70 fs/ntfs3/dir.c:541 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&ni->ni_lock#2/5){+.+.}-{4:4}: __mutex_lock_common kernel/locking/rtmutex_api.c:561 [inline] mutex_lock_nested+0x5a/0x1d0 kernel/locking/rtmutex_api.c:580 ni_lock fs/ntfs3/ntfs_fs.h:1247 [inline] attr_data_get_block+0x1cd/0x2c0 fs/ntfs3/attrib.c:976 ntfs_iomap_begin+0x4f0/0xf30 fs/ntfs3/inode.c:978 iomap_iter_next include/linux/iomap.h:382 [inline] ntfs_iomap_next+0x5b6/0x880 fs/ntfs3/inode.c:2319 iomap_iter+0xe2/0xec0 fs/iomap/iter.c:122 iomap_readahead+0x3e9/0xe80 fs/iomap/buffered-io.c:751 ntfs_readahead+0x193/0x210 fs/ntfs3/inode.c:880 read_pages+0x193/0x5a0 mm/readahead.c:174 page_cache_ra_unbounded+0x679/0x8f0 mm/readahead.c:315 do_page_cache_ra mm/readahead.c:348 [inline] page_cache_ra_order+0x2c1/0x4a0 mm/readahead.c:558 filemap_get_pages+0x493/0x1e80 mm/filemap.c:2714 filemap_read+0x429/0x11e0 mm/filemap.c:2824 __kernel_read+0x4d3/0x970 fs/read_write.c:532 integrity_kernel_read+0x89/0xd0 security/integrity/iint.c:28 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:222 [inline] ima_calc_file_hash+0x45d/0x8a0 security/integrity/ima/ima_crypto.c:280 ima_collect_measurement+0x521/0xa10 security/integrity/ima/ima_api.c:300 process_measurement+0x1282/0x1c20 security/integrity/ima/ima_main.c:425 ima_file_check+0xe1/0x130 security/integrity/ima/ima_main.c:685 security_file_post_open+0xb3/0x260 security/security.c:2755 do_open fs/namei.c:4839 [inline] path_openat+0x148a/0x1d60 fs/namei.c:5000 do_file_open+0x23e/0x4a0 fs/namei.c:5029 do_sys_openat2+0x115/0x200 fs/open.c:1417 do_sys_open fs/open.c:1423 [inline] __do_sys_openat fs/open.c:1439 [inline] __se_sys_openat fs/open.c:1434 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1434 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (mapping.invalidate_lock#7){.+.+}-{4:4}: down_read+0x97/0x200 kernel/locking/rwsem.c:1574 filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline] filemap_fault+0x6e0/0x13c0 mm/filemap.c:3585 __do_fault+0x138/0x2a0 mm/memory.c:5565 do_shared_fault mm/memory.c:6064 [inline] do_fault mm/memory.c:6138 [inline] do_pte_missing+0x659/0x28f0 mm/memory.c:4700 handle_pte_fault mm/memory.c:6558 [inline] __handle_mm_fault mm/memory.c:6707 [inline] handle_mm_fault+0xf64/0x28c0 mm/memory.c:6876 do_user_addr_fault+0xa4f/0x1340 arch/x86/mm/fault.c:1343 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 -> #1 (vm_lock){++++}-{0:0}: __vma_start_exclude_readers+0x283/0x930 mm/mmap_lock.c:125 __vma_start_write+0xdc/0x290 mm/mmap_lock.c:148 vma_start_write include/linux/mmap_lock.h:303 [inline] mprotect_fixup+0x657/0xad0 mm/mprotect.c:836 setup_arg_pages+0x658/0xbd0 fs/exec.c:675 load_elf_binary+0xc6d/0x28f0 fs/binfmt_elf.c:1028 search_binary_handler fs/exec.c:1759 [inline] exec_binprm fs/exec.c:1791 [inline] bprm_execve+0x930/0x1590 fs/exec.c:1847 kernel_execve+0x8c3/0x9c0 fs/exec.c:1991 try_to_run_init_process+0x13/0x60 init/main.c:1486 kernel_init+0xb2/0x1d0 init/main.c:1616 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #0 (&mm->mmap_lock){++++}-{4:4}: check_prev_add kernel/locking/lockdep.c:3209 [inline] check_prevs_add kernel/locking/lockdep.c:3328 [inline] validate_chain kernel/locking/lockdep.c:3952 [inline] __lock_acquire+0x164c/0x2de0 kernel/locking/lockdep.c:5288 lock_acquire+0x115/0x350 kernel/locking/lockdep.c:5942 down_read_killable+0xa4/0x220 kernel/locking/rwsem.c:1599 mmap_read_lock_killable+0x1d/0x70 include/linux/mmap_lock.h:609 get_mmap_lock_carefully mm/mmap_lock.c:450 [inline] lock_mm_and_find_vma+0x2d6/0x340 mm/mmap_lock.c:501 do_user_addr_fault+0x343/0x1340 arch/x86/mm/fault.c:1366 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 filldir64+0x2b1/0x620 fs/readdir.c:-1 dir_emit include/linux/fs.h:3607 [inline] ntfs_dir_emit fs/ntfs3/dir.c:388 [inline] ntfs_read_hdr+0x8a7/0xc10 fs/ntfs3/dir.c:429 ntfs_readdir+0x9ab/0xf70 fs/ntfs3/dir.c:589 iterate_dir+0x2f1/0x4e0 fs/readdir.c:110 __do_sys_getdents64 fs/readdir.c:399 [inline] __se_sys_getdents64+0xf1/0x280 fs/readdir.c:384 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &mm->mmap_lock --> mapping.invalidate_lock#7 --> &ni->ni_lock#2/5 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ni->ni_lock#2/5); lock(mapping.invalidate_lock#7); lock(&ni->ni_lock#2/5); rlock(&mm->mmap_lock); *** DEADLOCK *** locks held by syz.4.651/18497: 3, last CPU#1: #0: ffff8880346d1728 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x252/0x320 fs/file.c:1259 #1: ffff88806796aa00 (&type->i_mutex_dir_key#14){++++}-{4:4}, at: iterate_dir+0x215/0x4e0 fs/readdir.c:103 #2: ffff88806796a738 (&ni->ni_lock#2/5){+.+.}-{4:4}, at: ni_lock fs/ntfs3/ntfs_fs.h:1247 [inline] #2: ffff88806796a738 (&ni->ni_lock#2/5){+.+.}-{4:4}, at: ntfs_readdir+0x717/0xf70 fs/ntfs3/dir.c:541 stack backtrace: CPU: 1 UID: 0 PID: 18497 Comm: syz.4.651 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_circular_bug+0x2e2/0x300 kernel/locking/lockdep.c:2087 check_noncircular+0x12f/0x150 kernel/locking/lockdep.c:2219 check_prev_add kernel/locking/lockdep.c:3209 [inline] check_prevs_add kernel/locking/lockdep.c:3328 [inline] validate_chain kernel/locking/lockdep.c:3952 [inline] __lock_acquire+0x164c/0x2de0 kernel/locking/lockdep.c:5288 lock_acquire+0x115/0x350 kernel/locking/lockdep.c:5942 down_read_killable+0xa4/0x220 kernel/locking/rwsem.c:1599 mmap_read_lock_killable+0x1d/0x70 include/linux/mmap_lock.h:609 get_mmap_lock_carefully mm/mmap_lock.c:450 [inline] lock_mm_and_find_vma+0x2d6/0x340 mm/mmap_lock.c:501 do_user_addr_fault+0x343/0x1340 arch/x86/mm/fault.c:1366 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0010:filldir64+0x2b1/0x620 fs/readdir.c:368 Code: 47 f8 bf 07 00 00 00 44 89 f6 e8 5a 34 7f ff 0f 01 cb 48 8b 44 24 28 49 89 47 08 48 bd 00 00 00 00 00 fc ff df 48 8b 44 24 58 <48> 89 03 8b 4c 24 04 48 8d 43 10 66 89 08 8b 4c 24 14 80 e1 0f 48 RSP: 0018:ffffc90004a5fab0 EFLAGS: 00050297 RAX: 000000000000001f RBX: 0000200000001000 RCX: ffff88802ae3ddc0 RDX: 0000000000000002 RSI: 0000000000000005 RDI: 0000000000000007 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed10055c7bb9 R12: ffff88802ae70000 R13: 0000000000000005 R14: 0000000000000005 R15: 0000200000000fe0 dir_emit include/linux/fs.h:3607 [inline] ntfs_dir_emit fs/ntfs3/dir.c:388 [inline] ntfs_read_hdr+0x8a7/0xc10 fs/ntfs3/dir.c:429 ntfs_readdir+0x9ab/0xf70 fs/ntfs3/dir.c:589 iterate_dir+0x2f1/0x4e0 fs/readdir.c:110 __do_sys_getdents64 fs/readdir.c:399 [inline] __se_sys_getdents64+0xf1/0x280 fs/readdir.c:384 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc6390ee159 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc637346028 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9 RAX: ffffffffffffffda RBX: 00007fc639375fa0 RCX: 00007fc6390ee159 RDX: 00000000000000e0 RSI: 0000200000000fc0 RDI: 0000000000000004 RBP: 00007fc63918503b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc639376038 R14: 00007fc639375fa0 R15: 00007ffcb3850218 ---------------- Code disassembly (best guess): 0: 47 f8 rex.RXB clc 2: bf 07 00 00 00 mov $0x7,%edi 7: 44 89 f6 mov %r14d,%esi a: e8 5a 34 7f ff call 0xff7f3469 f: 0f 01 cb stac 12: 48 8b 44 24 28 mov 0x28(%rsp),%rax 17: 49 89 47 08 mov %rax,0x8(%r15) 1b: 48 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%rbp 22: fc ff df 25: 48 8b 44 24 58 mov 0x58(%rsp),%rax * 2a: 48 89 03 mov %rax,(%rbx) <-- trapping instruction 2d: 8b 4c 24 04 mov 0x4(%rsp),%ecx 31: 48 8d 43 10 lea 0x10(%rbx),%rax 35: 66 89 08 mov %cx,(%rax) 38: 8b 4c 24 14 mov 0x14(%rsp),%ecx 3c: 80 e1 0f and $0xf,%cl 3f: 48 rex.W