------------[ cut here ]------------
kernel BUG at net/ipv6/route.c:1296!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 15798 Comm: syz-executor.2 Not tainted 5.1.0+ #7
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rt6_make_pcpu_route net/ipv6/route.c:1296 [inline]
RIP: 0010:ip6_pol_route+0x81b/0xfa0 net/ipv6/route.c:1939
Code: 48 03 1c c5 60 70 6f 88 be 08 00 00 00 48 89 df e8 0a 87 87 fb 31 c0 f0 4c 0f b1 2b 48 85 c0 0f 84 30 fb ff ff e8 f5 38 4f fb <0f> 0b e8 ee 38 4f fb e8 99 43 3d fb 31 ff 41 89 c7 89 c6 e8 1d 3a
RSP: 0018:ffff888093297120 EFLAGS: 00010212
RAX: 0000000000040000 RBX: ffffe8ffffc6c890 RCX: ffffc90007f9c000
RDX: 0000000000000a99 RSI: ffffffff8621a0eb RDI: ffffe8ffffc6c890
RBP: ffff888093297248 R08: 1ffffd1ffff8d912 R09: fffff91ffff8d913
R10: fffff91ffff8d912 R11: ffffe8ffffc6c897 R12: 0000000000000001
R13: ffff888095796680 R14: ffff888093297170 R15: ffff8880957966c0
FS:  00007ff3a4a6a700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000073c000 CR3: 000000009311a000 CR4: 00000000001406f0
Call Trace:
 ip6_pol_route_input+0x65/0x80 net/ipv6/route.c:1955
 fib6_rule_lookup+0x136/0x5a0 net/ipv6/fib6_rules.c:116
 ip6_route_input_lookup+0xb7/0xd0 net/ipv6/route.c:1967
 ip6_route_input+0x5e2/0x9e0 net/ipv6/route.c:2102
 ip6_rcv_finish_core.isra.0+0x174/0x620 net/ipv6/ip6_input.c:67
 ip6_rcv_finish+0x17d/0x320 net/ipv6/ip6_input.c:78
 NF_HOOK include/linux/netfilter.h:305 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ipv6_rcv+0x10e/0x420 net/ipv6/ip6_input.c:276
 __netif_receive_skb_one_core+0x12a/0x1f0 net/core/dev.c:4990
 __netif_receive_skb+0x2c/0x1d0 net/core/dev.c:5104
 netif_receive_skb_internal+0x117/0x5c0 net/core/dev.c:5207
 napi_frags_finish net/core/dev.c:5774 [inline]
 napi_gro_frags+0xade/0xd10 net/core/dev.c:5848
 tun_get_user+0x2f3f/0x3ff0 drivers/net/tun.c:1991
 tun_chr_write_iter+0xbd/0x156 drivers/net/tun.c:2037
 call_write_iter include/linux/fs.h:1872 [inline]
 do_iter_readv_writev+0x5fd/0x900 fs/read_write.c:693
 do_iter_write fs/read_write.c:970 [inline]
 do_iter_write+0x184/0x610 fs/read_write.c:951
 vfs_writev+0x1b3/0x2f0 fs/read_write.c:1015
 do_writev+0x15b/0x330 fs/read_write.c:1058
 __do_sys_writev fs/read_write.c:1131 [inline]
 __se_sys_writev fs/read_write.c:1128 [inline]
 __x64_sys_writev+0x75/0xb0 fs/read_write.c:1128
 do_syscall_64+0x103/0x670 arch/x86/entry/common.c:298
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458c61
Code: 75 14 b8 14 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 e4 b9 fb ff c3 48 83 ec 08 e8 1a 2d 00 00 48 89 04 24 b8 14 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 63 2d 00 00 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ff3a4a69ba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 0000000000000066 RCX: 0000000000458c61
RDX: 0000000000000001 RSI: 00007ff3a4a69c00 RDI: 00000000000000f0
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007ff3a4a6a6d4
R13: 00000000004c77d2 R14: 00000000004dd9d0 R15: 00000000ffffffff
Modules linked in:
---[ end trace 727603dc120e5f49 ]---
RIP: 0010:rt6_make_pcpu_route net/ipv6/route.c:1296 [inline]
RIP: 0010:ip6_pol_route+0x81b/0xfa0 net/ipv6/route.c:1939
Code: 48 03 1c c5 60 70 6f 88 be 08 00 00 00 48 89 df e8 0a 87 87 fb 31 c0 f0 4c 0f b1 2b 48 85 c0 0f 84 30 fb ff ff e8 f5 38 4f fb <0f> 0b e8 ee 38 4f fb e8 99 43 3d fb 31 ff 41 89 c7 89 c6 e8 1d 3a
RSP: 0018:ffff888093297120 EFLAGS: 00010212
RAX: 0000000000040000 RBX: ffffe8ffffc6c890 RCX: ffffc90007f9c000
RDX: 0000000000000a99 RSI: ffffffff8621a0eb RDI: ffffe8ffffc6c890
RBP: ffff888093297248 R08: 1ffffd1ffff8d912 R09: fffff91ffff8d913
R10: fffff91ffff8d912 R11: ffffe8ffffc6c897 R12: 0000000000000001
R13: ffff888095796680 R14: ffff888093297170 R15: ffff8880957966c0
FS:  00007ff3a4a6a700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000073c000 CR3: 000000009311a000 CR4: 00000000001406f0