Hello, syzbot found the following issue on: HEAD commit: 3800a713b607 Merge tag 'mm-hotfixes-stable-2022-09-26' of .. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=119b63ef080000 kernel config: https://syzkaller.appspot.com/x/.config?x=a1992c90769e07 dashboard link: https://syzkaller.appspot.com/bug?extid=3209de1c96568282edc6 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/0012f6c5db09/disk-3800a713.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6c2ba89f2218/vmlinux-3800a713.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3209de1c96568282edc6@xxxxxxxxxxxxxxxxxxxxxxxxx ntfs3: loop5: Different NTFS' sector size (1024) and media sector size (512) ntfs3: loop5: RAW NTFS volume: Filesystem size 0.00 Gb > volume size 0.00 Gb. Mount in read-only BUG: kernel NULL pointer dereference, address: 000000000000002b #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 7b94f067 P4D 7b94f067 PUD 21ad8067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 15950 Comm: syz-executor.5 Not tainted 6.0.0-rc7-syzkaller-00029-g3800a713b607 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 RIP: 0010:__lock_release kernel/locking/lockdep.c:5350 [inline] RIP: 0010:lock_release+0x22c/0x780 kernel/locking/lockdep.c:5686 Code: 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 a7 04 00 00 <8b> 73 24 85 f6 0f 85 66 04 00 00 48 8d 7b 22 48 b8 00 00 00 00 00 RSP: 0018:ffffc90014787a10 EFLAGS: 00010046 RAX: 0000000000000007 RBX: 0000000000000007 RCX: ffffc90014787a60 RDX: 0000000000000000 RSI: ffff888072fb0518 RDI: ffff888039842ac4 RBP: 1ffff920028f0f44 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff888072fb0518 R13: 0000000000000002 R14: ffff888039842a70 R15: ffff888039842000 FS: 00007f7638dfe700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000002b CR3: 00000000281a9000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:157 [inline] _raw_spin_unlock_irq+0x12/0x40 kernel/locking/spinlock.c:202 spin_unlock_irq include/linux/spinlock.h:399 [inline] truncate_inode_pages_final+0x5f/0x80 mm/truncate.c:484 ntfs_evict_inode+0x16/0xa0 fs/ntfs3/inode.c:1741 evict+0x2ed/0x6b0 fs/inode.c:665 iput_final fs/inode.c:1748 [inline] iput.part.0+0x55d/0x810 fs/inode.c:1774 iput+0x58/0x70 fs/inode.c:1764 ntfs_fill_super+0x2e89/0x37f0 fs/ntfs3/super.c:1190 get_tree_bdev+0x440/0x760 fs/super.c:1323 vfs_get_tree+0x89/0x2f0 fs/super.c:1530 do_new_mount fs/namespace.c:3040 [inline] path_mount+0x1326/0x1e20 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7639e8bb9a Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7638dfdf88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000580 RCX: 00007f7639e8bb9a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f7638dfdfe0 RBP: 00007f7638dfe020 R08: 00007f7638dfe020 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f7638dfdfe0 R15: 0000000020000040 </TASK> Modules linked in: CR2: 000000000000002b ---[ end trace 0000000000000000 ]--- RIP: 0010:__lock_release kernel/locking/lockdep.c:5350 [inline] RIP: 0010:lock_release+0x22c/0x780 kernel/locking/lockdep.c:5686 Code: 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 a7 04 00 00 <8b> 73 24 85 f6 0f 85 66 04 00 00 48 8d 7b 22 48 b8 00 00 00 00 00 RSP: 0018:ffffc90014787a10 EFLAGS: 00010046 RAX: 0000000000000007 RBX: 0000000000000007 RCX: ffffc90014787a60 RDX: 0000000000000000 RSI: ffff888072fb0518 RDI: ffff888039842ac4 RBP: 1ffff920028f0f44 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff888072fb0518 R13: 0000000000000002 R14: ffff888039842a70 R15: ffff888039842000 FS: 00007f7638dfe700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000002b CR3: 00000000281a9000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 7: fc ff df a: 48 89 fa mov %rdi,%rdx d: 48 c1 ea 03 shr $0x3,%rdx 11: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx 15: 48 89 f8 mov %rdi,%rax 18: 83 e0 07 and $0x7,%eax 1b: 83 c0 03 add $0x3,%eax 1e: 38 d0 cmp %dl,%al 20: 7c 08 jl 0x2a 22: 84 d2 test %dl,%dl 24: 0f 85 a7 04 00 00 jne 0x4d1 * 2a: 8b 73 24 mov 0x24(%rbx),%esi <-- trapping instruction 2d: 85 f6 test %esi,%esi 2f: 0f 85 66 04 00 00 jne 0x49b 35: 48 8d 7b 22 lea 0x22(%rbx),%rdi 39: 48 rex.W 3a: b8 00 00 00 00 mov $0x0,%eax --- This report is generated by a bot. 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