audit: type=1400 audit(1601025336.511:8): avc:  denied  { execmem } for  pid=6471 comm="syz-executor963" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
ntfs: (device loop0): is_boot_sector_ntfs(): Invalid end of sector marker.
------------[ cut here ]------------
kernel BUG at fs/ntfs/aops.c:203!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 6471 Comm: syz-executor963 Not tainted 4.19.147-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ntfs_read_block fs/ntfs/aops.c:203 [inline]
RIP: 0010:ntfs_readpage+0x1c0b/0x24d0 fs/ntfs/aops.c:452
Code: ff e8 69 93 16 ff 48 8b 9d 80 fd ff ff 31 ff 48 c1 eb 03 83 e3 01 89 de e8 82 94 16 ff 84 db 0f 85 0b f0 ff ff e8 45 93 16 ff <0f> 0b 48 c7 c7 80 e3 bf 89 e8 e7 bc 5a 01 e8 32 93 16 ff 0f 0b 48
RSP: 0018:ffff888088547758 EFLAGS: 00010293
RAX: ffff8880a49880c0 RBX: 0000000000000000 RCX: ffffffff825b2f8e
RDX: 0000000000000000 RSI: ffffffff825b2f9b RDI: 0000000000000001
RBP: ffff888080845a08 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888080845788 R14: 0000000000000001 R15: ffffea0002111180
FS:  0000000001765880(0000) GS:ffff8880ae200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4d42555710 CR3: 00000000a881c000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_read_cache_page+0x533/0x1080 mm/filemap.c:2828
 read_mapping_page include/linux/pagemap.h:402 [inline]
 ntfs_map_page fs/ntfs/aops.h:89 [inline]
 map_mft_record_page fs/ntfs/mft.c:87 [inline]
 map_mft_record+0x228/0xd00 fs/ntfs/mft.c:170
 ntfs_read_locked_inode+0x19c/0x5490 fs/ntfs/inode.c:575
 ntfs_read_inode_mount+0xcba/0x23b0 fs/ntfs/inode.c:2100
 ntfs_fill_super+0x1761/0x89d2 fs/ntfs/super.c:2871
 mount_bdev+0x2fc/0x3b0 fs/super.c:1158
 mount_fs+0xa3/0x318 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2469 [inline]
 do_mount+0x51c/0x2f10 fs/namespace.c:2799
 ksys_mount+0xcf/0x130 fs/namespace.c:3015
 __do_sys_mount fs/namespace.c:3029 [inline]
 __se_sys_mount fs/namespace.c:3026 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3026
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x446e9a
Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007fff47b2f258 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fff47b2f2b0 RCX: 0000000000446e9a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fff47b2f270
RBP: 00007fff47b2f270 R08: 00007fff47b2f2b0 R09: 00007fff00000015
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000008
R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003
Modules linked in:
---[ end trace 0bf407d5fdd32026 ]---
RIP: 0010:ntfs_read_block fs/ntfs/aops.c:203 [inline]
RIP: 0010:ntfs_readpage+0x1c0b/0x24d0 fs/ntfs/aops.c:452
Code: ff e8 69 93 16 ff 48 8b 9d 80 fd ff ff 31 ff 48 c1 eb 03 83 e3 01 89 de e8 82 94 16 ff 84 db 0f 85 0b f0 ff ff e8 45 93 16 ff <0f> 0b 48 c7 c7 80 e3 bf 89 e8 e7 bc 5a 01 e8 32 93 16 ff 0f 0b 48
RSP: 0018:ffff888088547758 EFLAGS: 00010293
RAX: ffff8880a49880c0 RBX: 0000000000000000 RCX: ffffffff825b2f8e
RDX: 0000000000000000 RSI: ffffffff825b2f9b RDI: 0000000000000001
RBP: ffff888080845a08 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888080845788 R14: 0000000000000001 R15: ffffea0002111180
FS:  0000000001765880(0000) GS:ffff8880ae200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4d42555710 CR3: 00000000a881c000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400