====================================================== WARNING: possible circular locking dependency detected 6.11.0-syzkaller-07262-g839c4f596f89 #0 Not tainted ------------------------------------------------------ syz.1.154/6669 is trying to acquire lock: ffff88805d423ff8 (mapping.invalidate_lock#4){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline] ffff88805d423ff8 (mapping.invalidate_lock#4){++++}-{3:3}, at: filemap_fault+0x652/0x1750 mm/filemap.c:3309 but task is already holding lock: ffff888074e20148 (&vma->vm_lock->lock){++++}-{3:3}, at: vma_start_read include/linux/mm.h:700 [inline] ffff888074e20148 (&vma->vm_lock->lock){++++}-{3:3}, at: lock_vma_under_rcu+0x2f9/0x6e0 mm/memory.c:6013 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:5822 down_write+0x99/0x220 kernel/locking/rwsem.c:1579 vma_start_write include/linux/mm.h:753 [inline] vma_link+0x270/0x4f0 mm/mmap.c:457 insert_vm_struct+0x2f7/0x410 mm/mmap.c:3484 __bprm_mm_init fs/exec.c:289 [inline] bprm_mm_init fs/exec.c:393 [inline] alloc_bprm+0x8f5/0xe20 fs/exec.c:1617 kernel_execve+0x99/0xa50 fs/exec.c:2046 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:5822 __might_fault+0xc6/0x120 mm/memory.c:6402 _inline_copy_to_user include/linux/uaccess.h:176 [inline] _copy_to_user+0x2a/0xb0 lib/usercopy.c:26 copy_to_user include/linux/uaccess.h:209 [inline] fiemap_fill_next_extent+0x235/0x410 fs/ioctl.c:145 ni_fiemap+0x4f5/0x1910 fs/ntfs3/frecord.c:1993 ntfs_fiemap+0x132/0x180 fs/ntfs3/file.c:1278 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/4){+.+.}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5822 __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+0x5c7/0x1280 fs/ntfs3/file.c:563 vfs_fallocate+0x569/0x6e0 fs/open.c:333 do_vfs_ioctl+0x2583/0x2e40 fs/ioctl.c:886 __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 -> #0 (mapping.invalidate_lock#4){++++}-{3:3}: check_prev_add kernel/locking/lockdep.c:3158 [inline] check_prevs_add kernel/locking/lockdep.c:3277 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3901 __lock_acquire+0x1384/0x2050 kernel/locking/lockdep.c:5199 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5822 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:870 [inline] filemap_fault+0x652/0x1750 mm/filemap.c:3309 __do_fault+0x135/0x460 mm/memory.c:4670 do_shared_fault mm/memory.c:5136 [inline] do_fault mm/memory.c:5210 [inline] do_pte_missing mm/memory.c:3962 [inline] handle_pte_fault+0x117b/0x7010 mm/memory.c:5536 __handle_mm_fault mm/memory.c:5679 [inline] handle_mm_fault+0x1053/0x1ad0 mm/memory.c:5847 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#4 --> &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#4); *** DEADLOCK *** 1 lock held by syz.1.154/6669: #0: ffff888074e20148 (&vma->vm_lock->lock){++++}-{3:3}, at: vma_start_read include/linux/mm.h:700 [inline] #0: ffff888074e20148 (&vma->vm_lock->lock){++++}-{3:3}, at: lock_vma_under_rcu+0x2f9/0x6e0 mm/memory.c:6013 stack backtrace: CPU: 0 UID: 0 PID: 6669 Comm: syz.1.154 Not tainted 6.11.0-syzkaller-07262-g839c4f596f89 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2074 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2203 check_prev_add kernel/locking/lockdep.c:3158 [inline] check_prevs_add kernel/locking/lockdep.c:3277 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3901 __lock_acquire+0x1384/0x2050 kernel/locking/lockdep.c:5199 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5822 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:870 [inline] filemap_fault+0x652/0x1750 mm/filemap.c:3309 __do_fault+0x135/0x460 mm/memory.c:4670 do_shared_fault mm/memory.c:5136 [inline] do_fault mm/memory.c:5210 [inline] do_pte_missing mm/memory.c:3962 [inline] handle_pte_fault+0x117b/0x7010 mm/memory.c:5536 __handle_mm_fault mm/memory.c:5679 [inline] handle_mm_fault+0x1053/0x1ad0 mm/memory.c:5847 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: 0033:0x7f4197d45c0a Code: 00 01 00 00 00 74 9a 83 f9 c0 0f 87 8c fe ff ff c5 fe 6f 4e 20 48 29 fe 48 83 c7 3f 49 8d 0c 10 48 83 e7 c0 48 01 fe 48 29 f9 a4 c4 c1 7e 7f 00 c4 c1 7e 7f 48 20 e9 0b fd ff ff 0f 1f 40 00 RSP: 002b:00007ffcf94d2268 EFLAGS: 00010202 RAX: 000000002000ac00 RBX: 0000000000000004 RCX: 000000000000553b RDX: 000000000000553b RSI: 00007f4197845959 RDI: 000000002000ac00 RBP: 00007ffcf94d2348 R08: 000000002000ac00 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000002 R12: 000000000002d1fd R13: 00007ffcf94d2370 R14: 0000000000000032 R15: fffffffffffffffe