Not allocated shadow for addr ffff880100000000 (page ffffea0006000000)
Attempted to access 1280 bytes
------------[ cut here ]------------
kernel BUG at mm/kmsan/kmsan.c:1114!
invalid opcode: 0000 [#1] SMP PTI
CPU: 0 PID: 20339 Comm: syz-executor4 Not tainted 4.19.0-rc1+ #38
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kmsan_get_shadow_address+0x2d6/0x3d0 mm/kmsan/kmsan.c:1112
Code: e9 89 00 00 00 c7 04 25 60 35 4f 8a 01 00 00 00 65 48 8b 04 25 80 fc 02 00 c6 80 f3 08 00 00 01 80 3c 25 78 35 4f 8a 00 74 0c <0f> 0b 0f 1f 84 00 00 00 00 00 eb fe 48 c7 c7 d9 72 8a 89 31 c0 4c
RSP: 0018:ffff8801312cf770 EFLAGS: 00010086
RAX: 000000000000001e RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000000021d7 RDI: 00000000000021d8
RBP: ffff8801312cf7a0 R08: 0000000000000000 R09: ffff88021fc39250
R10: 0000000000000000 R11: ffffffff85429350 R12: 0000000000000001
R13: ffff880100000000 R14: 0000000000000001 R15: 0000000000000500
FS:  00007fdcbf4b5700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004d6250 CR3: 0000000130f68000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 kmsan_internal_memset_shadow mm/kmsan/kmsan.c:164 [inline]
 kmsan_internal_poison_shadow+0x6c/0x1b0 mm/kmsan/kmsan.c:180
 kmsan_kmalloc+0x98/0x100 mm/kmsan/kmsan_hooks.c:91
 kmsan_slab_alloc+0x10/0x20 mm/kmsan/kmsan_hooks.c:100
 slab_post_alloc_hook mm/slab.h:446 [inline]
 slab_alloc_node mm/slub.c:2719 [inline]
 slab_alloc mm/slub.c:2727 [inline]
 kmem_cache_alloc+0x643/0xb20 mm/slub.c:2732
 sk_prot_alloc+0xf3/0x520 net/core/sock.c:1462
 sk_alloc+0xf0/0xbb0 net/core/sock.c:1522
 inet6_create+0x786/0x1660 net/ipv6/af_inet6.c:183
 __sock_create+0x665/0xf30 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 __sys_socket+0x175/0x650 net/socket.c:1345
 __do_sys_socket net/socket.c:1354 [inline]
 __se_sys_socket net/socket.c:1352 [inline]
 __x64_sys_socket+0xd8/0x120 net/socket.c:1352
 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:00007fdcbf4b4c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fdcbf4b56d4 RCX: 0000000000457089
RDX: 0000000000000000 RSI: 0001000000000002 RDI: 000000000000000a
RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004d6250 R14: 00000000004c98f5 R15: 0000000000000000
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
---[ end trace 9b03d6b315eaf5b5 ]---
RIP: 0010:kmsan_get_shadow_address+0x2d6/0x3d0 mm/kmsan/kmsan.c:1112
Code: e9 89 00 00 00 c7 04 25 60 35 4f 8a 01 00 00 00 65 48 8b 04 25 80 fc 02 00 c6 80 f3 08 00 00 01 80 3c 25 78 35 4f 8a 00 74 0c <0f> 0b 0f 1f 84 00 00 00 00 00 eb fe 48 c7 c7 d9 72 8a 89 31 c0 4c
RSP: 0018:ffff8801312cf770 EFLAGS: 00010086
RAX: 000000000000001e RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000000021d7 RDI: 00000000000021d8
RBP: ffff8801312cf7a0 R08: 0000000000000000 R09: ffff88021fc39250
R10: 0000000000000000 R11: ffffffff85429350 R12: 0000000000000001
R13: ffff880100000000 R14: 0000000000000001 R15: 0000000000000500
FS:  00007fdcbf4b5700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004d6250 CR3: 0000000130f68000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600