RBP: 00007f86a81fd1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff0d9f982f R14: 00007f86a81fd300 R15: 0000000000022000
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: 3747 Comm: syz-executor.1 Not tainted 5.4.99-syzkaller-00346-g35f4b1b90596 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:nexthop_create_group net/ipv4/nexthop.c:1130 [inline]
RIP: 0010:nexthop_add net/ipv4/nexthop.c:1309 [inline]
RIP: 0010:rtm_new_nexthop+0x25e8/0x6a30 net/ipv4/nexthop.c:1508
Code: 00 80 3c 01 00 74 0a 48 8b 7c 24 18 e8 31 a6 dc fd 48 8b 44 24 18 48 89 18 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 0a a6 dc fd 48 8b 44 24 18 48 89 03
RSP: 0018:ffff8881ecdd70e0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: ffffc90000786000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff8881ecdd74d0 R08: ffffffff823f6d3d R09: fffffbfff0bec61f
R10: fffffbfff0bec61f R11: 0000000000000000 R12: 0000000000000071
R13: 000000000000006e R14: 0000000000010001 R15: 1ffff11036dc726c
FS:  00007f86a81fd700(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2eb663f710 CR3: 00000001dfe4b000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rtnetlink_rcv_msg+0xb74/0xd00 net/core/rtnetlink.c:5255
 netlink_rcv_skb+0x200/0x480 net/netlink/af_netlink.c:2478
 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
 netlink_unicast+0x865/0x9f0 net/netlink/af_netlink.c:1329
 netlink_sendmsg+0x9ab/0xd40 net/netlink/af_netlink.c:1918
 sock_sendmsg_nosec net/socket.c:638 [inline]
 sock_sendmsg net/socket.c:658 [inline]
 ____sys_sendmsg+0x583/0x8c0 net/socket.c:2298
 ___sys_sendmsg net/socket.c:2352 [inline]
 __sys_sendmsg+0x2c4/0x3b0 net/socket.c:2398
 do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466019
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f86a81fd188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466019
RDX: 0000000000000000 RSI: 0000000020001300 RDI: 0000000000000003
RBP: 00007f86a81fd1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff0d9f982f R14: 00007f86a81fd300 R15: 0000000000022000
Modules linked in:
---[ end trace 40c0c99dc9c744de ]---
RIP: 0010:nexthop_create_group net/ipv4/nexthop.c:1130 [inline]
RIP: 0010:nexthop_add net/ipv4/nexthop.c:1309 [inline]
RIP: 0010:rtm_new_nexthop+0x25e8/0x6a30 net/ipv4/nexthop.c:1508
Code: 00 80 3c 01 00 74 0a 48 8b 7c 24 18 e8 31 a6 dc fd 48 8b 44 24 18 48 89 18 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 0a a6 dc fd 48 8b 44 24 18 48 89 03
RSP: 0018:ffff8881ecdd70e0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: ffffc90000786000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff8881ecdd74d0 R08: ffffffff823f6d3d R09: fffffbfff0bec61f
R10: fffffbfff0bec61f R11: 0000000000000000 R12: 0000000000000071
R13: 000000000000006e R14: 0000000000010001 R15: 1ffff11036dc726c
FS:  00007f86a81fd700(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2eb663f710 CR3: 00000001dfe4b000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400