TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'.
================================================================================
UBSAN: Undefined behaviour in net/sched/sch_api.c:561:7
shift exponent 129 is too large for 32-bit type 'int'
CPU: 0 PID: 9626 Comm: syz-executor.0 Not tainted 4.19.150-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x22c/0x33e lib/dump_stack.c:118
 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'.
 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422
 __qdisc_calculate_pkt_len+0x3bb/0x570 net/sched/sch_api.c:561
 qdisc_calculate_pkt_len include/net/sch_generic.h:697 [inline]
 __dev_xmit_skb net/core/dev.c:3443 [inline]
 __dev_queue_xmit+0x1372/0x2ec0 net/core/dev.c:3807
 neigh_resolve_output+0x55a/0x950 net/core/neighbour.c:1374
 neigh_output include/net/neighbour.h:501 [inline]
 ip6_finish_output2+0x1184/0x2370 net/ipv6/ip6_output.c:120
 ip6_finish_output+0x610/0xcc0 net/ipv6/ip6_output.c:154
 NF_HOOK_COND include/linux/netfilter.h:278 [inline]
 ip6_output+0x205/0x7c0 net/ipv6/ip6_output.c:171
 dst_output include/net/dst.h:455 [inline]
 NF_HOOK include/linux/netfilter.h:289 [inline]
 ip6_xmit+0xe46/0x2110 net/ipv6/ip6_output.c:275
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
 inet6_csk_xmit+0x350/0x661 net/ipv6/inet6_connection_sock.c:139
 __tcp_transmit_skb+0x1c72/0x36c0 net/ipv4/tcp_output.c:1148
 tcp_transmit_skb net/ipv4/tcp_output.c:1164 [inline]
 tcp_send_syn_data net/ipv4/tcp_output.c:3486 [inline]
 tcp_connect+0x121e/0x2610 net/ipv4/tcp_output.c:3525
 tcp_v6_connect+0x1c36/0x2290 net/ipv6/tcp_ipv6.c:321
 __inet_stream_connect+0x836/0xe50 net/ipv4/af_inet.c:655
 tcp_sendmsg_fastopen net/ipv4/tcp.c:1185 [inline]
 tcp_sendmsg_locked+0x22cb/0x2fe0 net/ipv4/tcp.c:1232
 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1460
 inet_sendmsg+0x174/0x640 net/ipv4/af_inet.c:798
 sock_sendmsg_nosec net/socket.c:622 [inline]
 sock_sendmsg+0xc7/0x130 net/socket.c:632
 __sys_sendto+0x21a/0x320 net/socket.c:1787
 __do_sys_sendto net/socket.c:1799 [inline]
 __se_sys_sendto net/socket.c:1795 [inline]
 __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1795
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45de59
Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fbd38172c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 000000000002e8c0 RCX: 000000000045de59
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 000000000118bf78 R08: 0000000020000000 R09: 000000000000001c
R10: 0000000020000004 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffd0b016dbf R14: 00007fbd381739c0 R15: 000000000118bf2c
================================================================================
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
device lo entered promiscuous mode
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
FAT-fs (loop4): Unrecognized mount option "check=stric{=" or missing value
BFS-fs: bfs_fill_super(): No BFS filesystem on loop4 (magic=c9b22700)
Dev loop3: unable to read RDB block 8
 loop3: unable to read partition table
loop3: partition table beyond EOD, truncated
XFS (loop2): invalid logbufsize: 5 [not 16k,32k,64k,128k or 256k]
Bluetooth: hci4: command 0x0419 tx timeout
loop_reread_partitions: partition scan of loop3 () failed (rc=-5)
XFS (loop2): invalid logbufsize: 5 [not 16k,32k,64k,128k or 256k]
FAT-fs (loop4): Unrecognized mount option "check=stric{=" or missing value
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
batadv0: FDB only supports static addresses
batadv0: FDB only supports static addresses
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'.
overlayfs: upperdir is in-use as upperdir/workdir of another mount, mount with '-o index=off' to override exclusive upperdir protection.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'.
EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
overlayfs: unrecognized mount option "lowerdiˆ–Jr=./bus" or missing value
EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
overlayfs: unrecognized mount option "lowerdiˆ–Jr=./bus" or missing value
netlink: 'syz-executor.2': attribute type 4 has an invalid length.
IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready
netlink: 'syz-executor.2': attribute type 4 has an invalid length.