====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.0.886/12435 is trying to acquire lock: ffff888061c8e278 (mapping.invalidate_lock#8){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:934 [inline] ffff888061c8e278 (mapping.invalidate_lock#8){++++}-{4:4}, at: filemap_fault+0x551/0x1210 mm/filemap.c:3433 but task is already holding lock: ffff8880527f4a88 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x19f/0x3d0 mm/mmap_lock.c:147 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (vm_lock){++++}-{0:0}: lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5868 __vma_enter_locked+0x182/0x380 mm/mmap_lock.c:63 __vma_start_write+0x1e/0x120 mm/mmap_lock.c:87 vma_start_write include/linux/mmap_lock.h:297 [inline] mprotect_fixup+0x578/0x9c0 mm/mprotect.c:828 setup_arg_pages+0x53a/0xaa0 fs/exec.c:670 load_elf_binary+0xbad/0x2750 fs/binfmt_elf.c:1013 search_binary_handler fs/exec.c:1670 [inline] exec_binprm fs/exec.c:1702 [inline] bprm_execve+0x99c/0x1450 fs/exec.c:1754 kernel_execve+0x8f0/0x9f0 fs/exec.c:1920 try_to_run_init_process+0x13/0x60 init/main.c:1397 kernel_init+0xad/0x1d0 init/main.c:1525 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #2 (&mm->mmap_lock){++++}-{4:4}: lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5868 __might_fault+0xcc/0x130 mm/memory.c:6958 _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+0x11d/0x1a0 fs/ntfs3/file.c:1326 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1185/0x1440 fs/ioctl.c:532 __do_sys_ioctl fs/ioctl.c:596 [inline] __se_sys_ioctl+0x82/0x170 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&ni->ni_lock/5){+.+.}-{4:4}: lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5868 __mutex_lock_common kernel/locking/rtmutex_api.c:535 [inline] mutex_lock_nested+0x5a/0x1d0 kernel/locking/rtmutex_api.c:547 ni_lock fs/ntfs3/ntfs_fs.h:1113 [inline] attr_data_get_block+0x2ec/0x1ec0 fs/ntfs3/attrib.c:918 ntfs_get_block_vbo+0x392/0xc30 fs/ntfs3/inode.c:605 do_mpage_readpage+0x870/0x19a0 fs/mpage.c:222 mpage_readahead+0x398/0x650 fs/mpage.c:371 read_pages+0x17a/0x580 mm/readahead.c:160 page_cache_ra_unbounded+0x63b/0x740 mm/readahead.c:297 filemap_get_pages+0x443/0x1df0 mm/filemap.c:2603 filemap_read+0x3f9/0x11a0 mm/filemap.c:2712 __kernel_read+0x4d5/0x970 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+0x86a/0x1700 security/integrity/ima/ima_crypto.c:568 ima_collect_measurement+0x42e/0x8e0 security/integrity/ima/ima_api.c:293 process_measurement+0x112d/0x1a40 security/integrity/ima/ima_main.c:405 ima_file_check+0xd7/0x120 security/integrity/ima/ima_main.c:633 security_file_post_open+0xbb/0x290 security/security.c:3160 do_open fs/namei.c:3889 [inline] path_openat+0x2f32/0x3840 fs/namei.c:4046 do_filp_open+0x1fa/0x410 fs/namei.c:4073 do_sys_openat2+0x121/0x1c0 fs/open.c:1435 do_sys_open fs/open.c:1450 [inline] __do_sys_openat fs/open.c:1466 [inline] __se_sys_openat fs/open.c:1461 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1461 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (mapping.invalidate_lock#8){++++}-{4:4}: check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain+0xb9b/0x2140 kernel/locking/lockdep.c:3908 __lock_acquire+0xab9/0xd20 kernel/locking/lockdep.c:5237 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5868 down_read+0x97/0x1f0 kernel/locking/rwsem.c:1537 filemap_invalidate_lock_shared include/linux/fs.h:934 [inline] filemap_fault+0x551/0x1210 mm/filemap.c:3433 __do_fault+0x138/0x390 mm/memory.c:5152 do_shared_fault mm/memory.c:5637 [inline] do_fault mm/memory.c:5711 [inline] do_pte_missing mm/memory.c:4234 [inline] handle_pte_fault mm/memory.c:6052 [inline] __handle_mm_fault mm/memory.c:6195 [inline] handle_mm_fault+0x117f/0x3400 mm/memory.c:6364 do_user_addr_fault+0xa81/0x1390 arch/x86/mm/fault.c:1336 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 other info that might help us debug this: Chain exists of: mapping.invalidate_lock#8 --> &mm->mmap_lock --> vm_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(vm_lock); lock(&mm->mmap_lock); lock(vm_lock); rlock(mapping.invalidate_lock#8); *** DEADLOCK *** 1 lock held by syz.0.886/12435: #0: ffff8880527f4a88 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x19f/0x3d0 mm/mmap_lock.c:147 stack backtrace: CPU: 1 UID: 0 PID: 12435 Comm: syz.0.886 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_circular_bug+0x2ee/0x310 kernel/locking/lockdep.c:2043 check_noncircular+0x134/0x160 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+0xb9b/0x2140 kernel/locking/lockdep.c:3908 __lock_acquire+0xab9/0xd20 kernel/locking/lockdep.c:5237 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5868 down_read+0x97/0x1f0 kernel/locking/rwsem.c:1537 filemap_invalidate_lock_shared include/linux/fs.h:934 [inline] filemap_fault+0x551/0x1210 mm/filemap.c:3433 __do_fault+0x138/0x390 mm/memory.c:5152 do_shared_fault mm/memory.c:5637 [inline] do_fault mm/memory.c:5711 [inline] do_pte_missing mm/memory.c:4234 [inline] handle_pte_fault mm/memory.c:6052 [inline] __handle_mm_fault mm/memory.c:6195 [inline] handle_mm_fault+0x117f/0x3400 mm/memory.c:6364 do_user_addr_fault+0xa81/0x1390 arch/x86/mm/fault.c:1336 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7fcb49b26a95 Code: 80 00 00 00 00 c5 fe 6f 0e c5 fe 6f 56 20 c5 fe 6f 5e 40 c5 fe 6f 66 60 48 83 ee 80 c5 fd 7f 0f c5 fd 7f 57 20 c5 fd 7f 5f 40 fd 7f 67 60 48 83 ef 80 48 39 fa 77 cd c5 fe 7f 6a 60 c5 fe 7f RSP: 002b:00007ffc5a3c9cc8 EFLAGS: 00010207 RAX: 0000200000000b80 RBX: 0000000000000004 RCX: 0000200000000b80 RDX: 0000200000001225 RSI: 0000001b3093f9e8 RDI: 0000200000000fa0 RBP: 00007ffc5a3c9d98 R08: 0000000000000000 R09: 000000000000001c R10: 0000000000000000 R11: 0000000000000001 R12: 00007fcb49d95fac R13: 00007ffc5a3c9dc0 R14: fffffffffffffffe R15: 00007ffc5a3c9de0