loop2: detected capacity change from 0 to 2328 ntfs3: loop2: Different NTFS' sector size (4096) and media sector size (512) ntfs3: loop2: RAW NTFS volume: Filesystem size 0.00 Gb > volume size 0.00 Gb. Mount in read-only general protection fault, probably for non-canonical address 0xdffffc0000000047: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000238-0x000000000000023f] CPU: 0 PID: 26862 Comm: syz-executor.2 Not tainted 6.0.0-rc6-next-20220923-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 RIP: 0010:ni_find_attr+0xa8/0x630 fs/ntfs3/frecord.c:194 Code: 04 25 28 00 00 00 48 89 44 24 78 31 c0 e8 90 61 d5 fe 48 8d bd 38 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c1 04 00 00 48 8b 85 38 02 00 00 31 ff 48 89 c6 RSP: 0018:ffffc9000cebf868 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90004706000 RDX: 0000000000000047 RSI: ffffffff82a73270 RDI: 0000000000000238 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000000c R11: 000000000008c07e R12: 0000000000000000 R13: 1ffff920019d7f11 R14: 0000000000000080 R15: 0000000000000000 FS: 00007f924d372700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002053a000 CR3: 0000000023481000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: attr_load_runs_vcn+0x96/0x2b0 fs/ntfs3/attrib.c:1220 mi_read+0x4df/0x5b0 fs/ntfs3/record.c:151 ntfs_read_mft fs/ntfs3/inode.c:69 [inline] ntfs_iget5+0x899/0x3280 fs/ntfs3/inode.c:501 ntfs_fill_super+0x1979/0x3820 fs/ntfs3/super.c:946 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: 0033:0x7f924c28bada 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:00007f924d371f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f924c28bada RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f924d371fe0 RBP: 00007f924d372020 R08: 00007f924d372020 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f924d371fe0 R15: 000000002007a1e0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ni_find_attr+0xa8/0x630 fs/ntfs3/frecord.c:194 Code: 04 25 28 00 00 00 48 89 44 24 78 31 c0 e8 90 61 d5 fe 48 8d bd 38 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c1 04 00 00 48 8b 85 38 02 00 00 31 ff 48 89 c6 RSP: 0018:ffffc9000cebf868 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90004706000 RDX: 0000000000000047 RSI: ffffffff82a73270 RDI: 0000000000000238 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000000c R11: 000000000008c07e R12: 0000000000000000 R13: 1ffff920019d7f11 R14: 0000000000000080 R15: 0000000000000000 FS: 00007f924d372700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020936000 CR3: 0000000023481000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 04 25 add $0x25,%al 2: 28 00 sub %al,(%rax) 4: 00 00 add %al,(%rax) 6: 48 89 44 24 78 mov %rax,0x78(%rsp) b: 31 c0 xor %eax,%eax d: e8 90 61 d5 fe callq 0xfed561a2 12: 48 8d bd 38 02 00 00 lea 0x238(%rbp),%rdi 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 c1 04 00 00 jne 0x4f5 34: 48 8b 85 38 02 00 00 mov 0x238(%rbp),%rax 3b: 31 ff xor %edi,%edi 3d: 48 89 c6 mov %rax,%rsi