Hello, syzbot found the following issue on: HEAD commit: a957267fa7e9 Add linux-next specific files for 20240611 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=1139caa2980000 kernel config: https://syzkaller.appspot.com/x/.config?x=9a880e96898e79f8 dashboard link: https://syzkaller.appspot.com/bug?extid=c1751b6739d83d70bb75 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/6451759a606b/disk-a957267f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/7f635dbe5b8a/vmlinux-a957267f.xz kernel image: https://storage.googleapis.com/syzbot-assets/33eafd1b8aec/bzImage-a957267f.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c1751b6739d83d70bb75@xxxxxxxxxxxxxxxxxxxxxxxxx loop0: detected capacity change from 0 to 4096 ntfs3: loop0: Different NTFS sector size (4096) and media sector size (512). ====================================================== WARNING: possible circular locking dependency detected 6.10.0-rc3-next-20240611-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.0/9000 is trying to acquire lock: ffff88805b15dbb8 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline] ffff88805b15dbb8 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: ntfs_file_mmap+0x5d8/0x860 fs/ntfs3/file.c:302 but task is already holding lock: ffff88807d087398 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:122 [inline] ffff88807d087398 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x17c/0x3d0 mm/util.c:571 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&mm->mmap_lock){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5817 gup_fast_fallback+0x24c/0x2b40 mm/gup.c:3534 pin_user_pages_fast+0xcc/0x160 mm/gup.c:3658 iov_iter_extract_user_pages lib/iov_iter.c:1583 [inline] iov_iter_extract_pages+0x3db/0x720 lib/iov_iter.c:1646 dio_refill_pages fs/direct-io.c:173 [inline] dio_get_page fs/direct-io.c:214 [inline] do_direct_IO fs/direct-io.c:916 [inline] __blockdev_direct_IO+0x150f/0x49d0 fs/direct-io.c:1249 blockdev_direct_IO include/linux/fs.h:3201 [inline] ntfs_direct_IO+0x195/0x370 fs/ntfs3/inode.c:803 generic_file_direct_write+0x130/0x350 mm/filemap.c:3941 __generic_file_write_iter+0x129/0x230 mm/filemap.c:4097 ntfs_file_write_iter+0x68f/0x770 fs/ntfs3/file.c:1126 new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa72/0xc90 fs/read_write.c:590 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 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 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3159 [inline] check_prevs_add kernel/locking/lockdep.c:3278 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3902 __lock_acquire+0x1359/0x2000 kernel/locking/lockdep.c:5194 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5817 down_write+0x3a/0x50 kernel/locking/rwsem.c:1579 inode_lock include/linux/fs.h:795 [inline] ntfs_file_mmap+0x5d8/0x860 fs/ntfs3/file.c:302 call_mmap include/linux/fs.h:2123 [inline] mmap_region+0xe8f/0x2090 mm/mmap.c:2927 do_mmap+0x8ad/0xfa0 mm/mmap.c:1438 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:573 ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1484 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 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&mm->mmap_lock); lock(&sb->s_type->i_mutex_key#21); lock(&mm->mmap_lock); lock(&sb->s_type->i_mutex_key#21); *** DEADLOCK *** 1 lock held by syz-executor.0/9000: #0: ffff88807d087398 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:122 [inline] #0: ffff88807d087398 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x17c/0x3d0 mm/util.c:571 stack backtrace: CPU: 0 PID: 9000 Comm: syz-executor.0 Not tainted 6.10.0-rc3-next-20240611-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:91 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:117 print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2075 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2204 check_prev_add kernel/locking/lockdep.c:3159 [inline] check_prevs_add kernel/locking/lockdep.c:3278 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3902 __lock_acquire+0x1359/0x2000 kernel/locking/lockdep.c:5194 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5817 down_write+0x3a/0x50 kernel/locking/rwsem.c:1579 inode_lock include/linux/fs.h:795 [inline] ntfs_file_mmap+0x5d8/0x860 fs/ntfs3/file.c:302 call_mmap include/linux/fs.h:2123 [inline] mmap_region+0xe8f/0x2090 mm/mmap.c:2927 do_mmap+0x8ad/0xfa0 mm/mmap.c:1438 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:573 ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1484 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 RIP: 0033:0x7f7e2707cea9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7e27de60c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f7e271b3f80 RCX: 00007f7e2707cea9 RDX: 00000000007fffff RSI: 0000000000003000 RDI: 0000000020000000 RBP: 00007f7e270ebff4 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f7e271b3f80 R15: 00007ffee8137f98 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
