------------[ cut here ]------------ kernel BUG at net/ipv6/route.c:1296! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 6444 Comm: syz-executor.1 Not tainted 5.2.0-rc1+ #4 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+0xde2/0x1050 net/ipv6/route.c:1959 Code: 89 ee 44 89 ab 50 ff ff ff e8 da d5 4f fb 45 85 ed 0f 85 39 ff ff ff e8 4c d4 4f fb e8 47 d4 4f fb 0f 0b eb a2 e8 3e d4 4f fb <0f> 0b e8 37 d4 4f fb 49 8d bc 24 30 0d 00 00 48 b8 00 00 00 00 00 RSP: 0018:ffff888092866f20 EFLAGS: 00010212 RAX: 0000000000040000 RBX: ffff888092867020 RCX: ffffc90005dd9000 RDX: 000000000000145f RSI: ffffffff8620d032 RDI: ffffe8ffffc475f0 RBP: ffff888092867048 R08: 1ffffd1ffff88ebe R09: fffff91ffff88ebf R10: fffff91ffff88ebe R11: ffffe8ffffc475f7 R12: ffffe8ffffc475f0 R13: ffff8880a5d97e40 R14: ffff888092866f70 R15: ffff8880a5d97e80 FS: 00007f1e7d57c700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2bd21000 CR3: 0000000064cd8000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip6_pol_route_output+0x54/0x70 net/ipv6/route.c:2132 fib6_rule_lookup+0x279/0x5a0 net/ipv6/fib6_rules.c:120 ip6_route_output_flags+0x2c4/0x350 net/ipv6/route.c:2161 ip6_route_output include/net/ip6_route.h:89 [inline] icmpv6_xrlim_allow+0x11e/0x440 net/ipv6/icmp.c:212 icmp6_send+0x1107/0x1e50 net/ipv6/icmp.c:540 icmpv6_send+0xec/0x230 net/ipv6/ip6_icmp.c:43 ip6_pkt_drop+0x330/0x760 net/ipv6/route.c:3802 ip6_pkt_discard+0x1d/0x30 net/ipv6/route.c:3809 dst_input include/net/dst.h:439 [inline] ip6_rcv_finish+0x1de/0x310 net/ipv6/ip6_input.c:80 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+0x113/0x1a0 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+0xada/0xd10 net/core/dev.c:5848 tun_get_user+0x2f3c/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+0x5f8/0x8f0 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+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459131 Code: 75 14 b8 14 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 b9 fb ff c3 48 83 ec 08 e8 fa 2c 00 00 48 89 04 24 b8 14 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 43 2d 00 00 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007f1e7d57bba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 0000000000000083 RCX: 0000000000459131 RDX: 0000000000000001 RSI: 00007f1e7d57bc00 RDI: 00000000000000f0 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f1e7d57c6d4 R13: 00000000004c7d21 R14: 00000000004de160 R15: 00000000ffffffff Modules linked in: ---[ end trace 4b9a05e3cc53d77d ]--- RIP: 0010:rt6_make_pcpu_route net/ipv6/route.c:1296 [inline] RIP: 0010:ip6_pol_route+0xde2/0x1050 net/ipv6/route.c:1959 Code: 89 ee 44 89 ab 50 ff ff ff e8 da d5 4f fb 45 85 ed 0f 85 39 ff ff ff e8 4c d4 4f fb e8 47 d4 4f fb 0f 0b eb a2 e8 3e d4 4f fb <0f> 0b e8 37 d4 4f fb 49 8d bc 24 30 0d 00 00 48 b8 00 00 00 00 00 RSP: 0018:ffff888092866f20 EFLAGS: 00010212 RAX: 0000000000040000 RBX: ffff888092867020 RCX: ffffc90005dd9000 RDX: 000000000000145f RSI: ffffffff8620d032 RDI: ffffe8ffffc475f0 RBP: ffff888092867048 R08: 1ffffd1ffff88ebe R09: fffff91ffff88ebf R10: fffff91ffff88ebe R11: ffffe8ffffc475f7 R12: ffffe8ffffc475f0 R13: ffff8880a5d97e40 R14: ffff888092866f70 R15: ffff8880a5d97e80 FS: 00007f1e7d57c700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2bd21000 CR3: 0000000064cd8000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400