8021q: adding VLAN 0 to HW filter on device team0 Started in network mode Own node identity ac14141a, cluster identity 4711 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: 5983 Comm: syz-executor534 Not tainted 4.20.0-rc6+ #273 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:182 [inline] RIP: 0010:__ipv6_sock_mc_join+0x24a/0xc10 net/ipv6/mcast.c:152 Code: 00 00 e8 a9 31 9b fa 48 8b 85 d0 fe ff ff 48 83 c0 60 48 89 c2 48 89 85 c0 fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 32 09 00 00 48 8b 85 d0 fe ff ff 4c 8d ad 10 ff RSP: 0018:ffff8881b536eb78 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff86e459ac RDX: 000000000000000c RSI: ffffffff86e452c7 RDI: 0000000000000001 RBP: ffff8881b536ecc8 R08: ffff8881c2ee2300 R09: ffffed103b5e5b5f R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 000000000000000f R13: ffff8881b536ef64 R14: ffff8881b536ef64 R15: ffff8881c30e4e80 FS: 0000000000000000(0000) GS:ffff8881daf00000(0063) knlGS:0000000009ddf840 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000009ddf8c4 CR3: 00000001c2e6b000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ipv6_sock_mc_join+0x27/0x30 net/ipv6/mcast.c:208 enable_mcast net/tipc/udp_media.c:395 [inline] tipc_udp_enable+0x1476/0x1ed0 net/tipc/udp_media.c:757 tipc_enable_bearer+0x9a6/0xf10 net/tipc/bearer.c:302 __tipc_nl_bearer_enable+0x37c/0x4a0 net/tipc/bearer.c:897 tipc_nl_bearer_enable+0x22/0x30 net/tipc/bearer.c:905 genl_family_rcv_msg+0x8a7/0x11a0 net/netlink/genetlink.c:601 genl_rcv_msg+0xc6/0x168 net/netlink/genetlink.c:626 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2477 genl_rcv+0x28/0x40 net/netlink/genetlink.c:637 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1336 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2116 __sys_sendmsg+0x11d/0x280 net/socket.c:2154 __compat_sys_sendmsg net/compat.c:754 [inline] __do_compat_sys_sendmsg net/compat.c:761 [inline] __se_compat_sys_sendmsg net/compat.c:758 [inline] __ia32_compat_sys_sendmsg+0x7a/0xb0 net/compat.c:758 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x34d/0xfb2 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f94a29 Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000ff93252c EFLAGS: 00000246 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000c00 RDX: 000000000000c000 RSI: 00000000ff93259e RDI: 0000000000000001 RBP: 0000000000000100 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace a003b3aace9a6552 ]--- RIP: 0010:__read_once_size include/linux/compiler.h:182 [inline] RIP: 0010:__ipv6_sock_mc_join+0x24a/0xc10 net/ipv6/mcast.c:152 Code: 00 00 e8 a9 31 9b fa 48 8b 85 d0 fe ff ff 48 83 c0 60 48 89 c2 48 89 85 c0 fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 32 09 00 00 48 8b 85 d0 fe ff ff 4c 8d ad 10 ff RSP: 0018:ffff8881b536eb78 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff86e459ac RDX: 000000000000000c RSI: ffffffff86e452c7 RDI: 0000000000000001 RBP: ffff8881b536ecc8 R08: ffff8881c2ee2300 R09: ffffed103b5e5b5f R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 000000000000000f R13: ffff8881b536ef64 R14: ffff8881b536ef64 R15: ffff8881c30e4e80 FS: 0000000000000000(0000) GS:ffff8881daf00000(0063) knlGS:0000000009ddf840 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000009ddf8c4 CR3: 00000001c2e6b000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400