ntfs3(loop3): failed to convert "0080" to macinuit ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.3.121/6370 is trying to acquire lock: ffff888062f18588 (mapping.invalidate_lock#4){.+.+}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline] ffff888062f18588 (mapping.invalidate_lock#4){.+.+}-{4:4}, at: do_page_cache_ra mm/readahead.c:347 [inline] ffff888062f18588 (mapping.invalidate_lock#4){.+.+}-{4:4}, at: page_cache_ra_order+0x2b1/0x4a0 mm/readahead.c:558 but task is already holding lock: ffff888062f18898 (&ni->ni_lock/5){+.+.}-{4:4}, at: ni_lock fs/ntfs3/ntfs_fs.h:1247 [inline] ffff888062f18898 (&ni->ni_lock/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: -> #1 (&ni->ni_lock/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+0xa4a/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 -> #0 (mapping.invalidate_lock#4){.+.+}-{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+0x97/0x200 kernel/locking/rwsem.c:1574 filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline] do_page_cache_ra mm/readahead.c:347 [inline] page_cache_ra_order+0x2b1/0x4a0 mm/readahead.c:558 do_sync_mmap_readahead+0x4d6/0x7c0 mm/filemap.c:3443 filemap_fault+0x7e2/0x13c0 mm/filemap.c:3597 __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+0x746/0x1340 arch/x86/mm/fault.c:1394 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+0x2d4/0x620 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: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ni->ni_lock/5); lock(mapping.invalidate_lock#4); lock(&ni->ni_lock/5); rlock(mapping.invalidate_lock#4); *** DEADLOCK *** locks held by syz.3.121/6370: 3, last CPU#1: #0: ffff88805e399b28 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x252/0x320 fs/file.c:1259 #1: ffff888062f18b60 (&type->i_mutex_dir_key#10){++++}-{4:4}, at: iterate_dir+0x215/0x4e0 fs/readdir.c:103 #2: ffff888062f18898 (&ni->ni_lock/5){+.+.}-{4:4}, at: ni_lock fs/ntfs3/ntfs_fs.h:1247 [inline] #2: ffff888062f18898 (&ni->ni_lock/5){+.+.}-{4:4}, at: ntfs_readdir+0x717/0xf70 fs/ntfs3/dir.c:541 stack backtrace: CPU: 1 UID: 0 PID: 6370 Comm: syz.3.121 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+0x97/0x200 kernel/locking/rwsem.c:1574 filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline] do_page_cache_ra mm/readahead.c:347 [inline] page_cache_ra_order+0x2b1/0x4a0 mm/readahead.c:558 do_sync_mmap_readahead+0x4d6/0x7c0 mm/filemap.c:3443 filemap_fault+0x7e2/0x13c0 mm/filemap.c:3597 __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+0x746/0x1340 arch/x86/mm/fault.c:1394 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+0x2d4/0x620 fs/readdir.c:371 Code: 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 8d 43 12 88 08 4a 8d 04 2b 48 83 c0 13 00 00 48 89 5c 24 28 4c 8d 7b 13 41 83 fe 07 76 41 4d 89 e6 49 RSP: 0018:ffffc90008457ab0 EFLAGS: 00050216 RAX: 0000200000001000 RBX: 0000200000000fe8 RCX: 0000000000000004 RDX: 0000000000000002 RSI: 0000000000000005 RDI: 0000000000000007 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed1004e5f7d1 R12: ffff8880366b6000 R13: 0000000000000005 R14: 0000000000000005 R15: 0000200000000fc8 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: 0033:0x7fcda58ee159 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:00007fcda3b25028 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9 RAX: ffffffffffffffda RBX: 00007fcda5b76090 RCX: 00007fcda58ee159 RDX: 0000000000001000 RSI: 0000200000000f80 RDI: 0000000000000008 RBP: 00007fcda598503b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fcda5b76128 R14: 00007fcda5b76090 R15: 00007ffde1270718 ntfs3(loop3): failed to convert name for inode 1e. ntfs3(loop3): ino=1f, mi_enum_attr ---------------- Code disassembly (best guess): 0: ff lcall (bad) 1: df 48 8b fisttps -0x75(%rax) 4: 44 24 58 rex.R and $0x58,%al 7: 48 89 03 mov %rax,(%rbx) a: 8b 4c 24 04 mov 0x4(%rsp),%ecx e: 48 8d 43 10 lea 0x10(%rbx),%rax 12: 66 89 08 mov %cx,(%rax) 15: 8b 4c 24 14 mov 0x14(%rsp),%ecx 19: 80 e1 0f and $0xf,%cl 1c: 48 8d 43 12 lea 0x12(%rbx),%rax 20: 88 08 mov %cl,(%rax) 22: 4a 8d 04 2b lea (%rbx,%r13,1),%rax 26: 48 83 c0 13 add $0x13,%rax * 2a: c6 00 00 movb $0x0,(%rax) <-- trapping instruction 2d: 48 89 5c 24 28 mov %rbx,0x28(%rsp) 32: 4c 8d 7b 13 lea 0x13(%rbx),%r15 36: 41 83 fe 07 cmp $0x7,%r14d 3a: 76 41 jbe 0x7d 3c: 4d 89 e6 mov %r12,%r14 3f: 49 rex.WB