====================================================== WARNING: possible circular locking dependency detected 6.12.0-rc7-syzkaller-00125-gcfaaa7d010d1 #0 Not tainted ------------------------------------------------------ syz.0.1556/20724 is trying to acquire lock: ffff8880787793e8 (mapping.invalidate_lock#10){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline] ffff8880787793e8 (mapping.invalidate_lock#10){++++}-{3:3}, at: filemap_fault+0x6e8/0x1950 mm/filemap.c:3331 but task is already holding lock: ffff888033931ec8 (&vma->vm_lock->lock){++++}-{3:3}, at: vma_start_read include/linux/mm.h:704 [inline] ffff888033931ec8 (&vma->vm_lock->lock){++++}-{3:3}, at: lock_vma_under_rcu+0x34b/0x790 mm/memory.c:6243 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&vma->vm_lock->lock){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825 down_write+0x99/0x220 kernel/locking/rwsem.c:1577 vma_start_write include/linux/mm.h:757 [inline] vma_link+0x28c/0x500 mm/vma.c:1600 insert_vm_struct+0x2f7/0x410 mm/mmap.c:1995 __bprm_mm_init fs/exec.c:289 [inline] bprm_mm_init fs/exec.c:393 [inline] alloc_bprm+0x8f5/0xe20 fs/exec.c:1548 kernel_execve+0x99/0xa50 fs/exec.c:1977 try_to_run_init_process init/main.c:1397 [inline] kernel_init+0xed/0x2b0 init/main.c:1525 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 -> #2 (&mm->mmap_lock){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825 __might_fault+0xc6/0x120 mm/memory.c:6716 _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] ni_fiemap+0x57c/0x18c0 fs/ntfs3/frecord.c:2139 ntfs_fiemap+0x132/0x180 fs/ntfs3/file.c:1352 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1bf8/0x2e40 fs/ioctl.c:841 __do_sys_ioctl fs/ioctl.c:905 [inline] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&ni->ni_lock/5){+.+.}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825 __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:1109 [inline] ntfs_fallocate+0x93e/0x1270 fs/ntfs3/file.c:682 vfs_fallocate+0x569/0x6e0 fs/open.c:333 ksys_fallocate fs/open.c:356 [inline] __do_sys_fallocate fs/open.c:364 [inline] __se_sys_fallocate fs/open.c:362 [inline] __x64_sys_fallocate+0xbd/0x110 fs/open.c:362 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (mapping.invalidate_lock#10){++++}-{3:3}: check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904 __lock_acquire+0x1384/0x2050 kernel/locking/lockdep.c:5202 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524 filemap_invalidate_lock_shared include/linux/fs.h:870 [inline] filemap_fault+0x6e8/0x1950 mm/filemap.c:3331 __do_fault+0x135/0x460 mm/memory.c:4882 do_read_fault mm/memory.c:5297 [inline] do_fault mm/memory.c:5431 [inline] do_pte_missing mm/memory.c:3965 [inline] handle_pte_fault+0x2d1c/0x6820 mm/memory.c:5766 __handle_mm_fault mm/memory.c:5909 [inline] handle_mm_fault+0x1053/0x1ad0 mm/memory.c:6077 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x459/0x8c0 arch/x86/mm/fault.c:1539 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#10 --> &mm->mmap_lock --> &vma->vm_lock->lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(&vma->vm_lock->lock); lock(&mm->mmap_lock); lock( &vma->vm_lock->lock); rlock(mapping.invalidate_lock#10); *** DEADLOCK *** 1 lock held by syz.0.1556/20724: #0: ffff888033931ec8 (&vma->vm_lock->lock){++++}-{3:3}, at: vma_start_read include/linux/mm.h:704 [inline] #0: ffff888033931ec8 (&vma->vm_lock->lock){++++}-{3:3}, at: lock_vma_under_rcu+0x34b/0x790 mm/memory.c:6243 stack backtrace: CPU: 1 UID: 0 PID: 20724 Comm: syz.0.1556 Not tainted 6.12.0-rc7-syzkaller-00125-gcfaaa7d010d1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2074 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2206 check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904 __lock_acquire+0x1384/0x2050 kernel/locking/lockdep.c:5202 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524 filemap_invalidate_lock_shared include/linux/fs.h:870 [inline] filemap_fault+0x6e8/0x1950 mm/filemap.c:3331 __do_fault+0x135/0x460 mm/memory.c:4882 do_read_fault mm/memory.c:5297 [inline] do_fault mm/memory.c:5431 [inline] do_pte_missing mm/memory.c:3965 [inline] handle_pte_fault+0x2d1c/0x6820 mm/memory.c:5766 __handle_mm_fault mm/memory.c:5909 [inline] handle_mm_fault+0x1053/0x1ad0 mm/memory.c:6077 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x459/0x8c0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7fed25a41671 Code: 39 c6 7e 57 4c 8b 5f 20 48 8b 57 28 eb 06 0f 1f 00 4c 89 c2 49 39 d3 74 47 4c 8b 57 18 4c 8d 42 01 89 c1 83 c0 08 4c 89 47 28 <41> 0f b6 14 12 89 47 34 48 d3 e2 49 09 d1 39 f0 7c d5 44 89 ca 29 RSP: 002b:00007fed26a444e8 EFLAGS: 00010202 RAX: 0000000000000008 RBX: 00007fed26a44e28 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00007fed26a445e0 RBP: 00007fed26a445e0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000020001242 R11: 0000000000000561 R12: 0000000000000007 R13: 00007fed26a44ef0 R14: 00007fed26a44eb0 R15: 00007fed1ba00000