====================================================== WARNING: possible circular locking dependency detected 6.15.0-rc3-syzkaller-00342-g5bc1018675ec #0 Not tainted ------------------------------------------------------ syz.3.190/7443 is trying to acquire lock: ffff88807d73a5b8 (&ni->ni_lock#2/5){+.+.}-{4:4}, at: ni_lock fs/ntfs3/ntfs_fs.h:1105 [inline] ffff88807d73a5b8 (&ni->ni_lock#2/5){+.+.}-{4:4}, at: ntfs_read_folio+0xba/0x200 fs/ntfs3/inode.c:726 but task is already holding lock: ffff88807d73a9f0 (mapping.invalidate_lock#9){.+.+}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:922 [inline] ffff88807d73a9f0 (mapping.invalidate_lock#9){.+.+}-{4:4}, at: filemap_create_folio mm/filemap.c:2527 [inline] ffff88807d73a9f0 (mapping.invalidate_lock#9){.+.+}-{4:4}, at: filemap_get_pages+0xc29/0x1eb0 mm/filemap.c:2597 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (mapping.invalidate_lock#9){.+.+}-{4:4}: lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866 down_read+0x46/0x2e0 kernel/locking/rwsem.c:1524 filemap_invalidate_lock_shared include/linux/fs.h:922 [inline] filemap_fault+0x546/0x1200 mm/filemap.c:3391 __do_fault+0x135/0x390 mm/memory.c:5098 do_read_fault mm/memory.c:5518 [inline] do_fault mm/memory.c:5652 [inline] do_pte_missing mm/memory.c:4160 [inline] handle_pte_fault mm/memory.c:5997 [inline] __handle_mm_fault+0x363e/0x5380 mm/memory.c:6140 handle_mm_fault+0x2d5/0x7f0 mm/memory.c:6309 do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1388 handle_page_fault arch/x86/mm/fault.c:1480 [inline] exc_page_fault+0x68/0x110 arch/x86/mm/fault.c:1538 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 do_strncpy_from_user lib/strncpy_from_user.c:-1 [inline] strncpy_from_user+0xb7/0x290 lib/strncpy_from_user.c:130 getname_flags+0xf3/0x540 fs/namei.c:157 getname include/linux/fs.h:2852 [inline] do_sys_openat2+0xbc/0x1c0 fs/open.c:1423 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1455 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&mm->mmap_lock){++++}-{4:4}: lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866 __might_fault+0xcc/0x130 mm/memory.c:7151 _inline_copy_to_user include/linux/uaccess.h:192 [inline] _copy_to_user+0x2c/0xb0 lib/usercopy.c:26 copy_to_user include/linux/uaccess.h:225 [inline] fiemap_fill_next_extent+0x1c0/0x390 fs/ioctl.c:145 ni_fiemap+0x89c/0xbf0 fs/ntfs3/frecord.c:2007 ntfs_fiemap+0xda/0x130 fs/ntfs3/file.c:1380 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1638/0x1eb0 fs/ioctl.c:840 __do_sys_ioctl fs/ioctl.c:904 [inline] __se_sys_ioctl+0x82/0x170 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&ni->ni_lock#2/5){+.+.}-{4:4}: check_prev_add kernel/locking/lockdep.c:3166 [inline] check_prevs_add kernel/locking/lockdep.c:3285 [inline] validate_chain+0xb9b/0x2140 kernel/locking/lockdep.c:3909 __lock_acquire+0xaac/0xd20 kernel/locking/lockdep.c:5235 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866 __mutex_lock_common kernel/locking/mutex.c:601 [inline] __mutex_lock+0x182/0xe80 kernel/locking/mutex.c:746 ni_lock fs/ntfs3/ntfs_fs.h:1105 [inline] ntfs_read_folio+0xba/0x200 fs/ntfs3/inode.c:726 filemap_read_folio+0x114/0x380 mm/filemap.c:2401 filemap_create_folio mm/filemap.c:2536 [inline] filemap_get_pages+0xd52/0x1eb0 mm/filemap.c:2597 filemap_read+0x3fa/0x11d0 mm/filemap.c:2702 __kernel_read+0x469/0x8c0 fs/read_write.c:528 integrity_kernel_read+0x89/0xd0 security/integrity/iint.c:28 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:480 [inline] ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline] ima_calc_file_hash+0x152c/0x18d0 security/integrity/ima/ima_crypto.c:568 ima_collect_measurement+0x42e/0x8e0 security/integrity/ima/ima_api.c:293 process_measurement+0x1121/0x1a40 security/integrity/ima/ima_main.c:385 ima_file_check+0xd7/0x120 security/integrity/ima/ima_main.c:613 security_file_post_open+0xbb/0x290 security/security.c:3130 do_open fs/namei.c:3882 [inline] path_openat+0x2f26/0x3830 fs/namei.c:4039 do_filp_open+0x1fa/0x410 fs/namei.c:4066 do_sys_openat2+0x121/0x1c0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1455 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &ni->ni_lock#2/5 --> &mm->mmap_lock --> mapping.invalidate_lock#9 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(mapping.invalidate_lock#9); lock(&mm->mmap_lock); lock(mapping.invalidate_lock#9); lock(&ni->ni_lock#2/5); *** DEADLOCK *** 2 locks held by syz.3.190/7443: #0: ffff888061829068 (&ima_iint_mutex_key[depth]){+.+.}-{4:4}, at: process_measurement+0x74b/0x1a40 security/integrity/ima/ima_main.c:279 #1: ffff88807d73a9f0 (mapping.invalidate_lock#9){.+.+}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:922 [inline] #1: ffff88807d73a9f0 (mapping.invalidate_lock#9){.+.+}-{4:4}, at: filemap_create_folio mm/filemap.c:2527 [inline] #1: ffff88807d73a9f0 (mapping.invalidate_lock#9){.+.+}-{4:4}, at: filemap_get_pages+0xc29/0x1eb0 mm/filemap.c:2597 stack backtrace: CPU: 0 UID: 0 PID: 7443 Comm: syz.3.190 Not tainted 6.15.0-rc3-syzkaller-00342-g5bc1018675ec #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_circular_bug+0x2ee/0x310 kernel/locking/lockdep.c:2079 check_noncircular+0x134/0x160 kernel/locking/lockdep.c:2211 check_prev_add kernel/locking/lockdep.c:3166 [inline] check_prevs_add kernel/locking/lockdep.c:3285 [inline] validate_chain+0xb9b/0x2140 kernel/locking/lockdep.c:3909 __lock_acquire+0xaac/0xd20 kernel/locking/lockdep.c:5235 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866 __mutex_lock_common kernel/locking/mutex.c:601 [inline] __mutex_lock+0x182/0xe80 kernel/locking/mutex.c:746 ni_lock fs/ntfs3/ntfs_fs.h:1105 [inline] ntfs_read_folio+0xba/0x200 fs/ntfs3/inode.c:726 filemap_read_folio+0x114/0x380 mm/filemap.c:2401 filemap_create_folio mm/filemap.c:2536 [inline] filemap_get_pages+0xd52/0x1eb0 mm/filemap.c:2597 filemap_read+0x3fa/0x11d0 mm/filemap.c:2702 __kernel_read+0x469/0x8c0 fs/read_write.c:528 integrity_kernel_read+0x89/0xd0 security/integrity/iint.c:28 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:480 [inline] ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline] ima_calc_file_hash+0x152c/0x18d0 security/integrity/ima/ima_crypto.c:568 ima_collect_measurement+0x42e/0x8e0 security/integrity/ima/ima_api.c:293 process_measurement+0x1121/0x1a40 security/integrity/ima/ima_main.c:385 ima_file_check+0xd7/0x120 security/integrity/ima/ima_main.c:613 security_file_post_open+0xbb/0x290 security/security.c:3130 do_open fs/namei.c:3882 [inline] path_openat+0x2f26/0x3830 fs/namei.c:4039 do_filp_open+0x1fa/0x410 fs/namei.c:4066 do_sys_openat2+0x121/0x1c0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1455 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb2a9d8e969 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:00007fb2aac03038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fb2a9fb5fa0 RCX: 00007fb2a9d8e969 RDX: 0000000000000042 RSI: 00002000000003c0 RDI: ffffffffffffff9c RBP: 00007fb2a9e10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb2a9fb5fa0 R15: 00007ffeda0ae0d8