kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 26896 Comm: syz-executor.5 Not tainted 5.2.0-rc2+ #17 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ip6_route_get_saddr include/net/ip6_route.h:120 [inline] RIP: 0010:ip6_dst_lookup_tail+0xf0e/0x1b30 net/ipv6/ip6_output.c:1032 Code: e6 07 e8 65 66 55 fb 48 85 db 0f 84 83 08 00 00 e8 57 66 55 fb 48 8d 7b 7c 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 07 RSP: 0018:ffff88808d5f7480 EFLAGS: 00010a07 RAX: dffffc0000000000 RBX: ff88807b5f1cc000 RCX: 0000000000000000 RDX: 1ff1100f6be3980f RSI: ffffffff861b3f69 RDI: ff88807b5f1cc07c RBP: ffff88808d5f75d8 R08: ffff88808d6243c0 R09: ffffed1015d06be8 R10: ffffed1015d06be7 R11: ffff8880ae835f3b R12: ffff88808d5f7740 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88808d5f7768 FS: 00007f7c1d240700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004e7720 CR3: 000000009bbca000 CR4: 00000000001406f0 Call Trace: ip6_dst_lookup_flow+0xa8/0x220 net/ipv6/ip6_output.c:1155 tcp_v6_connect+0xda3/0x20a0 net/ipv6/tcp_ipv6.c:282 __inet_stream_connect+0x834/0xe90 net/ipv4/af_inet.c:659 tcp_sendmsg_fastopen net/ipv4/tcp.c:1143 [inline] tcp_sendmsg_locked+0x2318/0x3920 net/ipv4/tcp.c:1185 tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1419 inet_sendmsg+0x141/0x5d0 net/ipv4/af_inet.c:802 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:671 ___sys_sendmsg+0x803/0x920 net/socket.c:2292 __sys_sendmsg+0x105/0x1d0 net/socket.c:2330 __do_sys_sendmsg net/socket.c:2339 [inline] __se_sys_sendmsg net/socket.c:2337 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2337 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459279 Code: fd b7 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 b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f7c1d23fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459279 RDX: 0000000020008844 RSI: 0000000020000240 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7c1d2406d4 R13: 00000000004c6f0e R14: 00000000004dc030 R15: 00000000ffffffff Modules linked in: ---[ end trace a201d85a6d10af02 ]--- RIP: 0010:ip6_route_get_saddr include/net/ip6_route.h:120 [inline] RIP: 0010:ip6_dst_lookup_tail+0xf0e/0x1b30 net/ipv6/ip6_output.c:1032 Code: e6 07 e8 65 66 55 fb 48 85 db 0f 84 83 08 00 00 e8 57 66 55 fb 48 8d 7b 7c 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 07 RSP: 0018:ffff88808d5f7480 EFLAGS: 00010a07 RAX: dffffc0000000000 RBX: ff88807b5f1cc000 RCX: 0000000000000000 RDX: 1ff1100f6be3980f RSI: ffffffff861b3f69 RDI: ff88807b5f1cc07c RBP: ffff88808d5f75d8 R08: ffff88808d6243c0 R09: ffffed1015d06be8 R10: ffffed1015d06be7 R11: ffff8880ae835f3b R12: ffff88808d5f7740 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88808d5f7768 FS: 00007f7c1d240700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000010f0130 CR3: 000000009bbca000 CR4: 00000000001406f0