loop0: detected capacity change from 0 to 4096 ntfs3: loop0: Different NTFS sector size (2048) and media sector size (512). ====================================================== WARNING: possible circular locking dependency detected 6.11.0-syzkaller #0 Not tainted ------------------------------------------------------ syz.0.490/9630 is trying to acquire lock: ffff88807bb2ec08 (mapping.invalidate_lock#8){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] ffff88807bb2ec08 (mapping.invalidate_lock#8){.+.+}-{3:3}, at: filemap_fault+0x658/0x1760 mm/filemap.c:3302 but task is already holding lock: ffff88802a7ef2f8 (&vma->vm_lock->lock){++++}-{3:3}, at: vma_start_read include/linux/mm.h:694 [inline] ffff88802a7ef2f8 (&vma->vm_lock->lock){++++}-{3:3}, at: lock_vma_under_rcu+0x2f9/0x6e0 mm/memory.c:6015 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:5759 down_write+0x99/0x220 kernel/locking/rwsem.c:1579 vma_start_write include/linux/mm.h:747 [inline] vma_link+0x270/0x4f0 mm/mmap.c:457 insert_vm_struct+0x2f7/0x410 mm/mmap.c:3484 __bprm_mm_init fs/exec.c:291 [inline] bprm_mm_init fs/exec.c:395 [inline] alloc_bprm+0x81f/0xda0 fs/exec.c:1623 kernel_execve+0x99/0xa50 fs/exec.c:2052 try_to_run_init_process init/main.c:1395 [inline] kernel_init+0xed/0x2b0 init/main.c:1523 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:5759 __might_fault+0xc6/0x120 mm/memory.c:6404 _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] ni_fiemap+0x5b4/0x1910 fs/ntfs3/frecord.c:2140 ntfs_fiemap+0x132/0x180 fs/ntfs3/file.c:1279 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1c07/0x2e50 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:5759 __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:1110 [inline] attr_data_get_block+0x463/0x2ff0 fs/ntfs3/attrib.c:917 ntfs_get_block_vbo+0x3e4/0xd50 fs/ntfs3/inode.c:598 do_mpage_readpage+0x827/0x1c80 fs/mpage.c:225 mpage_readahead+0x44f/0x930 fs/mpage.c:374 read_pages+0x17e/0x840 mm/readahead.c:160 page_cache_ra_unbounded+0x6ce/0x7f0 mm/readahead.c:273 page_cache_sync_readahead include/linux/pagemap.h:1296 [inline] filemap_get_pages+0x49d/0x2090 mm/filemap.c:2529 filemap_splice_read+0x654/0xeb0 mm/filemap.c:2894 do_splice_read fs/splice.c:985 [inline] splice_direct_to_actor+0x4b7/0xc90 fs/splice.c:1089 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x28c/0x3e0 fs/splice.c:1233 do_sendfile+0x56d/0xe20 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1348 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#8){.+.+}-{3:3}: check_prev_add kernel/locking/lockdep.c:3133 [inline] check_prevs_add kernel/locking/lockdep.c:3252 [inline] validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3868 __lock_acquire+0x137a/0x2040 kernel/locking/lockdep.c:5142 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] filemap_fault+0x658/0x1760 mm/filemap.c:3302 __do_fault+0x135/0x460 mm/memory.c:4672 do_read_fault mm/memory.c:5078 [inline] do_fault mm/memory.c:5208 [inline] do_pte_missing mm/memory.c:3964 [inline] handle_pte_fault+0x321f/0x6fc0 mm/memory.c:5538 __handle_mm_fault mm/memory.c:5681 [inline] handle_mm_fault+0x1056/0x1ad0 mm/memory.c:5849 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#8 --> &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#8); *** DEADLOCK *** 1 lock held by syz.0.490/9630: #0: ffff88802a7ef2f8 (&vma->vm_lock->lock){++++}-{3:3}, at: vma_start_read include/linux/mm.h:694 [inline] #0: ffff88802a7ef2f8 (&vma->vm_lock->lock){++++}-{3:3}, at: lock_vma_under_rcu+0x2f9/0x6e0 mm/memory.c:6015 stack backtrace: CPU: 0 UID: 0 PID: 9630 Comm: syz.0.490 Not tainted 6.11.0-syzkaller #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 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2186 check_prev_add kernel/locking/lockdep.c:3133 [inline] check_prevs_add kernel/locking/lockdep.c:3252 [inline] validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3868 __lock_acquire+0x137a/0x2040 kernel/locking/lockdep.c:5142 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] filemap_fault+0x658/0x1760 mm/filemap.c:3302 __do_fault+0x135/0x460 mm/memory.c:4672 do_read_fault mm/memory.c:5078 [inline] do_fault mm/memory.c:5208 [inline] do_pte_missing mm/memory.c:3964 [inline] handle_pte_fault+0x321f/0x6fc0 mm/memory.c:5538 __handle_mm_fault mm/memory.c:5681 [inline] handle_mm_fault+0x1056/0x1ad0 mm/memory.c:5849 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: 0033:0x7f0a9de41a51 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:00007f0a9d9fe4e8 EFLAGS: 00010202 RAX: 0000000000000008 RBX: 00007f0a9d9fee28 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00007f0a9d9fe5e0 RBP: 00007f0a9d9fe5e0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000020001242 R11: 0000000000000561 R12: 0000000000000005 R13: 00007f0a9d9feef0 R14: 00007f0a9d9feeb0 R15: 00007f0a93600000