Not allocated shadow for addr ffff8801ab704071 (page ffffea000a04a180)
Attempted to access 0 bytes
------------[ cut here ]------------
kernel BUG at mm/kmsan/kmsan.c:1140!
invalid opcode: 0000 [#1] SMP PTI
CPU: 1 PID: 14265 Comm: syz-executor0 Not tainted 4.18.0-rc8+ #34
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kmsan_get_shadow_address+0x306/0x3d0 mm/kmsan/kmsan.c:1139
Code: 89 31 c0 4c 89 ee 48 89 ca e8 76 15 81 ff 80 3c 25 38 f5 15 8a 00 75 12 48 c7 c7 31 98 49 89 31 c0 48 8b 75 d0 e8 5a 15 81 ff <0f> 0b 0f 1f 84 00 00 00 00 00 eb fe 48 3d ff ff ff 1f 0f 87 70 fd 
RSP: 0018:ffff88011318fa00 EFLAGS: 00010282
RAX: 000000000000001b RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000000022cc RDI: 00000000000022cd
RBP: ffff88011318fa30 R08: 0000000000480020 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff85031d70 R12: 0000000000000001
R13: ffff8801ab704071 R14: 0000000000000000 R15: ffff8801ab704071
FS:  00007f4b5684a700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000728010 CR3: 00000001168f6000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 kmsan_copy_to_user+0x82/0xb0 mm/kmsan/kmsan_hooks.c:488
 copy_to_user include/linux/uaccess.h:184 [inline]
 inet_gifconf+0x345/0x500 net/ipv4/devinet.c:1223
 dev_ifconf+0x2b8/0x4e0 net/core/dev_ioctl.c:78
 sock_do_ioctl+0x397/0x6b0 net/socket.c:984
 sock_ioctl+0x7a8/0xd70 net/socket.c:1094
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0xc77/0x2670 fs/ioctl.c:686
 ksys_ioctl fs/ioctl.c:701 [inline]
 __do_sys_ioctl fs/ioctl.c:708 [inline]
 __se_sys_ioctl fs/ioctl.c:706 [inline]
 __x64_sys_ioctl+0x280/0x320 fs/ioctl.c:706
 do_syscall_64+0x15b/0x220 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x457089
Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 
RSP: 002b:00007f4b56849c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4b5684a6d4 RCX: 0000000000457089
RDX: 0000000020000280 RSI: 0000000000008912 RDI: 0000000000000004
RBP: 0000000000930140 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004cd318 R14: 00000000004c3da6 R15: 0000000000000001
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
---[ end trace 6b0d95d7302b28bb ]---
RIP: 0010:kmsan_get_shadow_address+0x306/0x3d0 mm/kmsan/kmsan.c:1139
Code: 89 31 c0 4c 89 ee 48 89 ca e8 76 15 81 ff 80 3c 25 38 f5 15 8a 00 75 12 48 c7 c7 31 98 49 89 31 c0 48 8b 75 d0 e8 5a 15 81 ff <0f> 0b 0f 1f 84 00 00 00 00 00 eb fe 48 3d ff ff ff 1f 0f 87 70 fd 
RSP: 0018:ffff88011318fa00 EFLAGS: 00010282
RAX: 000000000000001b RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000000022cc RDI: 00000000000022cd
RBP: ffff88011318fa30 R08: 0000000000480020 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff85031d70 R12: 0000000000000001
R13: ffff8801ab704071 R14: 0000000000000000 R15: ffff8801ab704071
FS:  00007f4b5684a700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000728010 CR3: 00000001168f6000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400