====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.2.94/6256 is trying to acquire lock: ffff888073f2f580 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: ni_lock fs/ntfs3/ntfs_fs.h:1128 [inline] ffff888073f2f580 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: ntfs_read_folio+0xba/0x200 fs/ntfs3/inode.c:728 but task is already holding lock: ffff888073f2f9b8 (mapping.invalidate_lock#3){.+.+}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1093 [inline] ffff888073f2f9b8 (mapping.invalidate_lock#3){.+.+}-{4:4}, at: filemap_create_folio mm/filemap.c:2625 [inline] ffff888073f2f9b8 (mapping.invalidate_lock#3){.+.+}-{4:4}, at: filemap_get_pages+0xadf/0x1dc0 mm/filemap.c:2696 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (mapping.invalidate_lock#3){.+.+}-{4:4}: down_read+0x47/0x2e0 kernel/locking/rwsem.c:1537 filemap_invalidate_lock_shared include/linux/fs.h:1093 [inline] filemap_fault+0x5c3/0x1290 mm/filemap.c:3537 __do_fault+0x138/0x390 mm/memory.c:5320 do_read_fault mm/memory.c:5755 [inline] do_fault mm/memory.c:5889 [inline] do_pte_missing+0x2208/0x3330 mm/memory.c:4401 handle_pte_fault mm/memory.c:6273 [inline] __handle_mm_fault mm/memory.c:6411 [inline] handle_mm_fault+0x1b26/0x32b0 mm/memory.c:6580 do_user_addr_fault+0x764/0x1380 arch/x86/mm/fault.c:1387 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x82/0x100 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 rep_movs_alternative+0x30/0x90 arch/x86/lib/copy_user_64.S:53 copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:141 [inline] _inline_copy_from_user include/linux/uaccess.h:185 [inline] _copy_from_user+0x7a/0xb0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:223 [inline] ioctl_fiemap fs/ioctl.c:209 [inline] do_vfs_ioctl+0x77a/0x1430 fs/ioctl.c:531 __do_sys_ioctl fs/ioctl.c:595 [inline] __se_sys_ioctl+0x82/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&mm->mmap_lock){++++}-{4:4}: __might_fault+0xcc/0x130 mm/memory.c:7174 _inline_copy_to_user include/linux/uaccess.h:201 [inline] _copy_to_user+0x2c/0xb0 lib/usercopy.c:26 copy_to_user include/linux/uaccess.h:236 [inline] fiemap_fill_next_extent+0x1c0/0x390 fs/ioctl.c:144 ni_fiemap+0x391/0xbf0 fs/ntfs3/frecord.c:1898 ntfs_fiemap+0x11d/0x1a0 fs/ntfs3/file.c:1419 ioctl_fiemap fs/ioctl.c:219 [inline] do_vfs_ioctl+0x1173/0x1430 fs/ioctl.c:531 __do_sys_ioctl fs/ioctl.c:595 [inline] __se_sys_ioctl+0x82/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&ni->ni_lock#3/5){+.+.}-{4:4}: check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x15a6/0x2cf0 kernel/locking/lockdep.c:5237 lock_acquire+0x117/0x340 kernel/locking/lockdep.c:5868 __mutex_lock_common kernel/locking/mutex.c:614 [inline] __mutex_lock+0x187/0x1350 kernel/locking/mutex.c:776 ni_lock fs/ntfs3/ntfs_fs.h:1128 [inline] ntfs_read_folio+0xba/0x200 fs/ntfs3/inode.c:728 filemap_read_folio+0x117/0x380 mm/filemap.c:2496 filemap_create_folio mm/filemap.c:2634 [inline] filemap_get_pages+0xc22/0x1dc0 mm/filemap.c:2696 filemap_read+0x3f6/0x11a0 mm/filemap.c:2800 __kernel_read+0x4cf/0x960 fs/read_write.c:530 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+0x85e/0x16f0 security/integrity/ima/ima_crypto.c:568 ima_collect_measurement+0x428/0x8f0 security/integrity/ima/ima_api.c:294 process_measurement+0x111e/0x1a70 security/integrity/ima/ima_main.c:406 ima_file_check+0xd9/0x130 security/integrity/ima/ima_main.c:663 security_file_post_open+0xbb/0x290 security/security.c:2652 do_open fs/namei.c:4629 [inline] path_openat+0x2e25/0x3840 fs/namei.c:4786 do_filp_open+0x1fa/0x410 fs/namei.c:4813 do_sys_openat2+0x121/0x200 fs/open.c:1391 do_sys_open fs/open.c:1397 [inline] __do_sys_openat fs/open.c:1413 [inline] __se_sys_openat fs/open.c:1408 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1408 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xf80 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#3/5 --> &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#3/5); *** DEADLOCK *** 2 locks held by syz.2.94/6256: #0: ffff88806100bf48 (&ima_iint_mutex_key[depth]){+.+.}-{4:4}, at: process_measurement+0x74e/0x1a70 security/integrity/ima/ima_main.c:300 #1: ffff888073f2f9b8 (mapping.invalidate_lock#3){.+.+}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1093 [inline] #1: ffff888073f2f9b8 (mapping.invalidate_lock#3){.+.+}-{4:4}, at: filemap_create_folio mm/filemap.c:2625 [inline] #1: ffff888073f2f9b8 (mapping.invalidate_lock#3){.+.+}-{4:4}, at: filemap_get_pages+0xadf/0x1dc0 mm/filemap.c:2696 stack backtrace: CPU: 1 UID: 0 PID: 6256 Comm: syz.2.94 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_circular_bug+0x2e2/0x300 kernel/locking/lockdep.c:2043 check_noncircular+0x12e/0x150 kernel/locking/lockdep.c:2175 check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x15a6/0x2cf0 kernel/locking/lockdep.c:5237 lock_acquire+0x117/0x340 kernel/locking/lockdep.c:5868 __mutex_lock_common kernel/locking/mutex.c:614 [inline] __mutex_lock+0x187/0x1350 kernel/locking/mutex.c:776 ni_lock fs/ntfs3/ntfs_fs.h:1128 [inline] ntfs_read_folio+0xba/0x200 fs/ntfs3/inode.c:728 filemap_read_folio+0x117/0x380 mm/filemap.c:2496 filemap_create_folio mm/filemap.c:2634 [inline] filemap_get_pages+0xc22/0x1dc0 mm/filemap.c:2696 filemap_read+0x3f6/0x11a0 mm/filemap.c:2800 __kernel_read+0x4cf/0x960 fs/read_write.c:530 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+0x85e/0x16f0 security/integrity/ima/ima_crypto.c:568 ima_collect_measurement+0x428/0x8f0 security/integrity/ima/ima_api.c:294 process_measurement+0x111e/0x1a70 security/integrity/ima/ima_main.c:406 ima_file_check+0xd9/0x130 security/integrity/ima/ima_main.c:663 security_file_post_open+0xbb/0x290 security/security.c:2652 do_open fs/namei.c:4629 [inline] path_openat+0x2e25/0x3840 fs/namei.c:4786 do_filp_open+0x1fa/0x410 fs/namei.c:4813 do_sys_openat2+0x121/0x200 fs/open.c:1391 do_sys_open fs/open.c:1397 [inline] __do_sys_openat fs/open.c:1413 [inline] __se_sys_openat fs/open.c:1408 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1408 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb4ed18f749 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:00007fb4ee0b3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fb4ed3e5fa0 RCX: 00007fb4ed18f749 RDX: 0000000000101142 RSI: 0000200000000040 RDI: ffffffffffffff9c RBP: 00007fb4ed213f91 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000000ef R11: 0000000000000246 R12: 0000000000000000 R13: 00007fb4ed3e6038 R14: 00007fb4ed3e5fa0 R15: 00007ffc15c3fd18