====================================================== WARNING: possible circular locking dependency detected 6.14.0-rc7-syzkaller-00196-g88d324e69ea9 #0 Not tainted ------------------------------------------------------ syz.2.612/12207 is trying to acquire lock: ffff88804e950c90 (mapping.invalidate_lock#5){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:932 [inline] ffff88804e950c90 (mapping.invalidate_lock#5){++++}-{4:4}, at: filemap_fault+0x615/0x1490 mm/filemap.c:3390 but task is already holding lock: ffff88801f3c52f8 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline] ffff88801f3c52f8 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x34b/0x790 mm/memory.c:6366 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&vma->vm_lock->lock){++++}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_write+0x99/0x220 kernel/locking/rwsem.c:1577 vma_start_write include/linux/mm.h:770 [inline] vma_link+0x28c/0x500 mm/vma.c:1696 insert_vm_struct+0x2f7/0x410 mm/mmap.c:1356 __bprm_mm_init fs/exec.c:281 [inline] bprm_mm_init fs/exec.c:385 [inline] alloc_bprm+0x7f9/0xbe0 fs/exec.c:1575 kernel_execve+0x99/0xa50 fs/exec.c:1991 try_to_run_init_process init/main.c:1385 [inline] kernel_init+0xed/0x2b0 init/main.c:1513 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 -> #2 (&mm->mmap_lock){++++}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 __might_fault+0xc6/0x120 mm/memory.c:6839 _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+0x235/0x420 fs/ioctl.c:145 ni_fiemap+0x970/0x1270 fs/ntfs3/frecord.c:2042 ntfs_fiemap+0x132/0x180 fs/ntfs3/file.c:1360 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1981/0x2770 fs/ioctl.c:840 __do_sys_ioctl fs/ioctl.c:904 [inline] __se_sys_ioctl+0x80/0x170 fs/ioctl.c:892 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#3/5){+.+.}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 __mutex_lock_common kernel/locking/mutex.c:585 [inline] __mutex_lock+0x19c/0x1010 kernel/locking/mutex.c:730 ni_lock fs/ntfs3/ntfs_fs.h:1111 [inline] attr_data_get_block+0x464/0x2fb0 fs/ntfs3/attrib.c:918 ntfs_get_block_vbo+0x3d7/0xd70 fs/ntfs3/inode.c:605 do_mpage_readpage+0x7b8/0x1720 fs/mpage.c:225 mpage_readahead+0x456/0x780 fs/mpage.c:374 read_pages+0x179/0x570 mm/readahead.c:160 page_cache_ra_unbounded+0x708/0x820 mm/readahead.c:297 filemap_get_pages+0x59a/0x1fb0 mm/filemap.c:2590 filemap_splice_read+0x68e/0xef0 mm/filemap.c:2980 do_splice_read fs/splice.c:985 [inline] splice_direct_to_actor+0x4af/0xc80 fs/splice.c:1089 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x289/0x3e0 fs/splice.c:1233 vfs_copy_file_range+0xd1f/0x14f0 fs/read_write.c:1620 __do_sys_copy_file_range fs/read_write.c:1670 [inline] __se_sys_copy_file_range+0x3fa/0x600 fs/read_write.c:1637 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#5){++++}-{4:4}: check_prev_add kernel/locking/lockdep.c:3163 [inline] check_prevs_add kernel/locking/lockdep.c:3282 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3906 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524 filemap_invalidate_lock_shared include/linux/fs.h:932 [inline] filemap_fault+0x615/0x1490 mm/filemap.c:3390 __do_fault+0x135/0x390 mm/memory.c:4989 do_shared_fault mm/memory.c:5473 [inline] do_fault mm/memory.c:5547 [inline] do_pte_missing mm/memory.c:4059 [inline] handle_pte_fault mm/memory.c:5888 [inline] __handle_mm_fault+0x2041/0x6ef0 mm/memory.c:6031 handle_mm_fault+0x2c1/0x7e0 mm/memory.c:6200 do_user_addr_fault arch/x86/mm/fault.c:1337 [inline] handle_page_fault arch/x86/mm/fault.c:1480 [inline] exc_page_fault+0x459/0x8b0 arch/x86/mm/fault.c:1538 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#5 --> &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#5); *** DEADLOCK *** 1 lock held by syz.2.612/12207: #0: ffff88801f3c52f8 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline] #0: ffff88801f3c52f8 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x34b/0x790 mm/memory.c:6366 stack backtrace: CPU: 1 UID: 0 PID: 12207 Comm: syz.2.612 Not tainted 6.14.0-rc7-syzkaller-00196-g88d324e69ea9 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 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:2076 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2208 check_prev_add kernel/locking/lockdep.c:3163 [inline] check_prevs_add kernel/locking/lockdep.c:3282 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3906 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524 filemap_invalidate_lock_shared include/linux/fs.h:932 [inline] filemap_fault+0x615/0x1490 mm/filemap.c:3390 __do_fault+0x135/0x390 mm/memory.c:4989 do_shared_fault mm/memory.c:5473 [inline] do_fault mm/memory.c:5547 [inline] do_pte_missing mm/memory.c:4059 [inline] handle_pte_fault mm/memory.c:5888 [inline] __handle_mm_fault+0x2041/0x6ef0 mm/memory.c:6031 handle_mm_fault+0x2c1/0x7e0 mm/memory.c:6200 do_user_addr_fault arch/x86/mm/fault.c:1337 [inline] handle_page_fault arch/x86/mm/fault.c:1480 [inline] exc_page_fault+0x459/0x8b0 arch/x86/mm/fault.c:1538 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7f0930154e9d Code: c3 66 66 2e 0f 1f 84 00 00 00 00 00 90 83 fa 10 73 2d 83 fa 08 73 46 83 fa 04 73 16 83 fa 01 7c 10 8a 0e 74 0a 0f b7 74 16 fe <66> 89 74 17 fe 88 0f c3 8b 4c 16 fc 8b 36 89 4c 17 fc 89 37 c3 c5 RSP: 002b:00007fffadd4f158 EFLAGS: 00010202 RAX: 0000200000000000 RBX: 0000000000000004 RCX: 8000000000000031 RDX: 0000000000000002 RSI: 0000000000000031 RDI: 0000200000000000 RBP: 00007f09303a7ba0 R08: 00007f0930000000 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000009 R12: 00007f09303a5fac R13: 00007fffadd4f250 R14: fffffffffffffffe R15: 00007fffadd4f270