------------[ cut here ]------------ kernel BUG at net/ipv6/route.c:1414! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 20556 Comm: syz-executor.0 Not tainted 5.2.0-rc3+ #28 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rt6_make_pcpu_route net/ipv6/route.c:1414 [inline] RIP: 0010:ip6_pol_route+0xbef/0xe40 net/ipv6/route.c:2254 Code: 89 ee 44 89 ab 50 ff ff ff e8 ed 52 4d fb 45 85 ed 0f 85 39 ff ff ff e8 5f 51 4d fb e8 5a 51 4d fb 0f 0b eb a2 e8 51 51 4d fb <0f> 0b e8 4a 51 4d fb 49 8d bc 24 98 09 00 00 48 b8 00 00 00 00 00 RSP: 0018:ffff88805b27f120 EFLAGS: 00010216 RAX: 0000000000040000 RBX: ffff88805b27f220 RCX: ffffc90010e69000 RDX: 0000000000000ac6 RSI: ffffffff862356af RDI: ffffe8ffffd656f0 RBP: ffff88805b27f248 R08: 1ffffd1ffffacade R09: fffff91ffffacadf R10: fffff91ffffacade R11: ffffe8ffffd656f7 R12: ffffe8ffffd656f0 R13: ffff888096126440 R14: ffff88805b27f170 R15: ffff888096126480 FS: 00007f0f05883700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000738000 CR3: 000000005a3f2000 CR4: 00000000001406e0 Call Trace: ip6_pol_route_input+0x65/0x80 net/ipv6/route.c:2270 fib6_rule_lookup+0x133/0x5a0 net/ipv6/fib6_rules.c:116 ip6_route_input_lookup+0xb7/0xd0 net/ipv6/route.c:2282 ip6_route_input+0x5e2/0x9e0 net/ipv6/route.c:2417 ip6_rcv_finish_core.isra.0+0x174/0x590 net/ipv6/ip6_input.c:63 ip6_rcv_finish+0x17a/0x310 net/ipv6/ip6_input.c:74 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:272 __netif_receive_skb_one_core+0x113/0x1a0 net/core/dev.c:4981 __netif_receive_skb+0x2c/0x1d0 net/core/dev.c:5095 netif_receive_skb_internal+0x108/0x390 net/core/dev.c:5185 napi_frags_finish net/core/dev.c:5736 [inline] napi_gro_frags+0xad9/0xd10 net/core/dev.c:5810 tun_get_user+0x2f3c/0x3ff0 drivers/net/tun.c:1982 tun_chr_write_iter+0xbd/0x156 drivers/net/tun.c:2028 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: 0033:0x459181 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:00007f0f05882ba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 000000000000003e RCX: 0000000000459181 RDX: 0000000000000001 RSI: 00007f0f05882c00 RDI: 00000000000000f0 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f0f058836d4 R13: 00000000004c8003 R14: 00000000004de780 R15: 00000000ffffffff Modules linked in: ---[ end trace f76720ed03355a18 ]--- RIP: 0010:rt6_make_pcpu_route net/ipv6/route.c:1414 [inline] RIP: 0010:ip6_pol_route+0xbef/0xe40 net/ipv6/route.c:2254 Code: 89 ee 44 89 ab 50 ff ff ff e8 ed 52 4d fb 45 85 ed 0f 85 39 ff ff ff e8 5f 51 4d fb e8 5a 51 4d fb 0f 0b eb a2 e8 51 51 4d fb <0f> 0b e8 4a 51 4d fb 49 8d bc 24 98 09 00 00 48 b8 00 00 00 00 00 RSP: 0018:ffff88805b27f120 EFLAGS: 00010216 RAX: 0000000000040000 RBX: ffff88805b27f220 RCX: ffffc90010e69000 RDX: 0000000000000ac6 RSI: ffffffff862356af RDI: ffffe8ffffd656f0 RBP: ffff88805b27f248 R08: 1ffffd1ffffacade R09: fffff91ffffacadf R10: fffff91ffffacade R11: ffffe8ffffd656f7 R12: ffffe8ffffd656f0 R13: ffff888096126440 R14: ffff88805b27f170 R15: ffff888096126480 FS: 00007f0f05883700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000738000 CR3: 000000005a3f2000 CR4: 00000000001406e0