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: 1 PID: 10053 Comm: syz-executor.4 Not tainted 5.2.0-rc5+ #26
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:call_fib6_multipath_entry_notifiers+0xd1/0x1a0 net/ipv6/ip6_fib.c:396
Code: 8b b5 30 ff ff ff 48 c7 85 68 ff ff ff 00 00 00 00 48 c7 85 70 ff ff ff 00 00 00 00 89 45 88 4c 89 e0 48 c1 e8 03 4c 89 65 80 <42> 80 3c 28 00 0f 85 9a 00 00 00 48 b8 00 00 00 00 00 fc ff df 4d
RSP: 0018:ffff88805fe8f2c0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff1100bfd1e59 RCX: ffffc9000e645000
RDX: 000000000000087f RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffff88805fe8f390 R08: ffff88805fe8f8c0 R09: 000000000000000c
R10: ffff88805fe8f5d8 R11: ffff88805fe8f527 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88805fe8f8c0 R15: ffff88806f7a2140
FS:  00007fee1eefe700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31221000 CR3: 00000000a88b9000 CR4: 00000000001406e0
Call Trace:
 ip6_route_multipath_add+0xc55/0x1490 net/ipv6/route.c:5094
 inet6_rtm_newroute+0xed/0x180 net/ipv6/route.c:5208
 rtnetlink_rcv_msg+0x463/0xb00 net/core/rtnetlink.c:5219
 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5237
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x531/0x710 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:665
 ___sys_sendmsg+0x803/0x920 net/socket.c:2286
 __sys_sendmsg+0x105/0x1d0 net/socket.c:2324
 __do_sys_sendmsg net/socket.c:2333 [inline]
 __se_sys_sendmsg net/socket.c:2331 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2331
 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4592c9
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:00007fee1eefdc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004592c9
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fee1eefe6d4
R13: 00000000004c6f76 R14: 00000000004dc0b0 R15: 00000000ffffffff
Modules linked in:
---[ end trace 244a80e3eed4d360 ]---
RIP: 0010:call_fib6_multipath_entry_notifiers+0xd1/0x1a0 net/ipv6/ip6_fib.c:396
Code: 8b b5 30 ff ff ff 48 c7 85 68 ff ff ff 00 00 00 00 48 c7 85 70 ff ff ff 00 00 00 00 89 45 88 4c 89 e0 48 c1 e8 03 4c 89 65 80 <42> 80 3c 28 00 0f 85 9a 00 00 00 48 b8 00 00 00 00 00 fc ff df 4d
RSP: 0018:ffff88805fe8f2c0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff1100bfd1e59 RCX: ffffc9000e645000
RDX: 000000000000087f RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffff88805fe8f390 R08: ffff88805fe8f8c0 R09: 000000000000000c
R10: ffff88805fe8f5d8 R11: ffff88805fe8f527 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88805fe8f8c0 R15: ffff88806f7a2140
FS:  00007fee1eefe700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdb67fba78 CR3: 00000000a88b9000 CR4: 00000000001406f0