====================================================== WARNING: possible circular locking dependency detected 6.9.0-rc5-syzkaller-00042-ge88c4cfcb7b8 #0 Not tainted ------------------------------------------------------ syz-executor.4/8416 is trying to acquire lock: ffff88807871ad40 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1121 [inline] ffff88807871ad40 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_read_folio+0x193/0x210 fs/ntfs3/inode.c:718 but task is already holding lock: ffff88807871b180 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:850 [inline] ffff88807871b180 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_create_folio mm/filemap.c:2451 [inline] ffff88807871b180 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_get_pages+0xb1d/0x2090 mm/filemap.c:2512 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (mapping.invalidate_lock#3){.+.+}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:850 [inline] filemap_fault+0x646/0x16a0 mm/filemap.c:3277 __do_fault+0x135/0x460 mm/memory.c:4531 do_read_fault mm/memory.c:4894 [inline] do_fault mm/memory.c:5024 [inline] do_pte_missing mm/memory.c:3880 [inline] handle_pte_fault mm/memory.c:5300 [inline] __handle_mm_fault+0x45f7/0x7240 mm/memory.c:5441 handle_mm_fault+0x27f/0x770 mm/memory.c:5606 do_user_addr_fault arch/x86/mm/fault.c:1413 [inline] handle_page_fault arch/x86/mm/fault.c:1505 [inline] exc_page_fault+0x2a8/0x8e0 arch/x86/mm/fault.c:1563 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 strncpy_from_user+0x110/0x2f0 lib/strncpy_from_user.c:139 getname_flags+0xfa/0x4f0 fs/namei.c:150 getname fs/namei.c:218 [inline] __do_sys_mknodat fs/namei.c:4079 [inline] __se_sys_mknodat fs/namei.c:4076 [inline] __x64_sys_mknodat+0x98/0xc0 fs/namei.c:4076 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&mm->mmap_lock){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 __might_fault+0xc6/0x120 mm/memory.c:6220 _copy_to_user+0x2a/0xb0 lib/usercopy.c:36 copy_to_user include/linux/uaccess.h:191 [inline] fiemap_fill_next_extent+0x235/0x410 fs/ioctl.c:145 ni_fiemap+0x9b2/0x1230 fs/ntfs3/frecord.c:2044 ntfs_fiemap+0x132/0x180 fs/ntfs3/file.c:1206 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:838 __do_sys_ioctl fs/ioctl.c:902 [inline] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&ni->file.run_lock#3){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 down_write+0x3a/0x50 kernel/locking/rwsem.c:1579 ntfs_set_size+0x13d/0x200 fs/ntfs3/inode.c:837 ntfs_extend+0x16d/0x4a0 fs/ntfs3/file.c:335 ntfs_file_write_iter+0x3ea/0x770 fs/ntfs3/file.c:1115 call_write_iter include/linux/fs.h:2110 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa84/0xcb0 fs/read_write.c:590 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&ni->ni_lock/4){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain+0x18cb/0x58e0 kernel/locking/lockdep.c:3869 __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752 ni_lock fs/ntfs3/ntfs_fs.h:1121 [inline] ntfs_read_folio+0x193/0x210 fs/ntfs3/inode.c:718 filemap_read_folio+0x1a0/0x790 mm/filemap.c:2331 filemap_create_folio mm/filemap.c:2459 [inline] filemap_get_pages+0xdf8/0x2090 mm/filemap.c:2512 filemap_read+0x457/0xfa0 mm/filemap.c:2601 __kernel_read+0x5c8/0xab0 fs/read_write.c:434 integrity_kernel_read+0xb0/0x100 security/integrity/iint.c:28 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+0xadb/0x1b30 security/integrity/ima/ima_crypto.c:573 ima_collect_measurement+0x535/0xa90 security/integrity/ima/ima_api.c:291 process_measurement+0x13ac/0x1f60 security/integrity/ima/ima_main.c:359 ima_file_check+0xf2/0x170 security/integrity/ima/ima_main.c:559 security_file_post_open+0x6d/0xa0 security/security.c:2981 do_open fs/namei.c:3644 [inline] path_openat+0x28b7/0x3240 fs/namei.c:3799 do_filp_open+0x235/0x490 fs/namei.c:3826 do_sys_openat2+0x13e/0x1d0 fs/open.c:1406 do_sys_open fs/open.c:1421 [inline] __do_sys_openat fs/open.c:1437 [inline] __se_sys_openat fs/open.c:1432 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1432 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &ni->ni_lock/4 --> &mm->mmap_lock --> mapping.invalidate_lock#3 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(mapping.invalidate_lock#3); lock(&mm->mmap_lock); lock(mapping.invalidate_lock#3); lock(&ni->ni_lock/4); *** DEADLOCK *** 2 locks held by syz-executor.4/8416: #0: ffff88802d6ff380 (&ima_iint_mutex_key[depth]){+.+.}-{3:3}, at: process_measurement+0x7d1/0x1f60 security/integrity/ima/ima_main.c:267 #1: ffff88807871b180 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:850 [inline] #1: ffff88807871b180 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_create_folio mm/filemap.c:2451 [inline] #1: ffff88807871b180 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_get_pages+0xb1d/0x2090 mm/filemap.c:2512 stack backtrace: CPU: 1 PID: 8416 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00042-ge88c4cfcb7b8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2187 check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain+0x18cb/0x58e0 kernel/locking/lockdep.c:3869 __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752 ni_lock fs/ntfs3/ntfs_fs.h:1121 [inline] ntfs_read_folio+0x193/0x210 fs/ntfs3/inode.c:718 filemap_read_folio+0x1a0/0x790 mm/filemap.c:2331 filemap_create_folio mm/filemap.c:2459 [inline] filemap_get_pages+0xdf8/0x2090 mm/filemap.c:2512 filemap_read+0x457/0xfa0 mm/filemap.c:2601 __kernel_read+0x5c8/0xab0 fs/read_write.c:434 integrity_kernel_read+0xb0/0x100 security/integrity/iint.c:28 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+0xadb/0x1b30 security/integrity/ima/ima_crypto.c:573 ima_collect_measurement+0x535/0xa90 security/integrity/ima/ima_api.c:291 process_measurement+0x13ac/0x1f60 security/integrity/ima/ima_main.c:359 ima_file_check+0xf2/0x170 security/integrity/ima/ima_main.c:559 security_file_post_open+0x6d/0xa0 security/security.c:2981 do_open fs/namei.c:3644 [inline] path_openat+0x28b7/0x3240 fs/namei.c:3799 do_filp_open+0x235/0x490 fs/namei.c:3826 do_sys_openat2+0x13e/0x1d0 fs/open.c:1406 do_sys_open fs/open.c:1421 [inline] __do_sys_openat fs/open.c:1437 [inline] __se_sys_openat fs/open.c:1432 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1432 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f723a07dea9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f723ae740c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f723a1abf80 RCX: 00007f723a07dea9 RDX: 0000000000000000 RSI: 0000000020002440 RDI: ffffffffffffff9c RBP: 00007f723a0ca4a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f723a1abf80 R15: 00007ffd7531c2a8