Use struct sctp_assoc_value instead
IPVS: Error joining to the multicast group
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: 16604 Comm: syz-executor0 Not tainted 5.0.0-rc4+ #43
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rt_cache_valid+0x33/0x190 net/ipv4/route.c:1510
IPVS: Error joining to the multicast group
Code: 31 e4 53 48 89 fb e8 8c bc 9e fb 48 85 db 74 4f e8 82 bc 9e fb 48 8d 7b 3a 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 01 38 d0 7c 08 84 d2 0f 85 07
RSP: 0018:ffff888093eef628 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000041 RCX: ffffc90005deb000
RDX: 000000000000000f RSI: ffffffff85d11f2e RDI: 000000000000007b
kobject: 'loop3' (000000006516acfc): kobject_uevent_env
RBP: ffff888093eef640 R08: ffff8880976a61c0 R09: ffffed1015d05bc8
R10: ffffed1015d05bc7 R11: ffff8880ae82de3b R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000041 R15: ffff8880a0b72500
FS:  00007fd2cf14c700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd5e48df638 CR3: 000000008f5ee000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kobject: 'loop3' (000000006516acfc): fill_kobj_path: path = '/devices/virtual/block/loop3'
 __mkroute_output net/ipv4/route.c:2260 [inline]
 ip_route_output_key_hash_rcu+0x89d/0x30e0 net/ipv4/route.c:2492
 ip_route_output_key_hash+0x212/0x380 net/ipv4/route.c:2321
 __ip_route_output_key include/net/route.h:124 [inline]
 ip_route_output_flow+0x28/0xc0 net/ipv4/route.c:2576
 udp_sendmsg+0x1ada/0x2830 net/ipv4/udp.c:1152
IPVS: Error joining to the multicast group
kobject: 'loop3' (000000006516acfc): kobject_uevent_env
kobject: 'loop3' (000000006516acfc): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000dc210249): kobject_uevent_env
 inet_sendmsg+0x147/0x5d0 net/ipv4/af_inet.c:798
 sock_sendmsg_nosec net/socket.c:621 [inline]
 sock_sendmsg+0xdd/0x130 net/socket.c:631
kobject: 'loop2' (00000000dc210249): fill_kobj_path: path = '/devices/virtual/block/loop2'
 ___sys_sendmsg+0x806/0x930 net/socket.c:2116
IPVS: Error joining to the multicast group
 __sys_sendmsg+0x105/0x1d0 net/socket.c:2154
kobject: 'loop2' (00000000dc210249): kobject_uevent_env
 __do_sys_sendmsg net/socket.c:2163 [inline]
 __se_sys_sendmsg net/socket.c:2161 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2161
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
kobject: 'loop2' (00000000dc210249): fill_kobj_path: path = '/devices/virtual/block/loop2'
RIP: 0033:0x457e39
Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fd2cf14bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457e39
RDX: 0000000005000000 RSI: 0000000020000380 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd2cf14c6d4
R13: 00000000004c4edd R14: 00000000004d8ae0 R15: 00000000ffffffff
Modules linked in:
---[ end trace b96bad3031462025 ]---
kobject: 'loop5' (0000000034f3751a): kobject_uevent_env
RIP: 0010:rt_cache_valid+0x33/0x190 net/ipv4/route.c:1510
kobject: 'loop5' (0000000034f3751a): fill_kobj_path: path = '/devices/virtual/block/loop5'
Code: 31 e4 53 48 89 fb e8 8c bc 9e fb 48 85 db 74 4f e8 82 bc 9e fb 48 8d 7b 3a 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 01 38 d0 7c 08 84 d2 0f 85 07
kobject: 'loop4' (00000000324a4700): kobject_uevent_env
RSP: 0018:ffff888093eef628 EFLAGS: 00010206
kobject: 'loop4' (00000000324a4700): fill_kobj_path: path = '/devices/virtual/block/loop4'
RAX: dffffc0000000000 RBX: 0000000000000041 RCX: ffffc90005deb000
RDX: 000000000000000f RSI: ffffffff85d11f2e RDI: 000000000000007b
RBP: ffff888093eef640 R08: ffff8880976a61c0 R09: ffffed1015d05bc8
R10: ffffed1015d05bc7 R11: ffff8880ae82de3b R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000041 R15: ffff8880a0b72500
FS:  00007fd2cf14c700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd3766f5000 CR3: 000000008f5ee000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400