================================================================================ 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: 18653 Comm: syz-executor.5 Not tainted 4.19.148-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 __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] ip6_local_out+0xaf/0x170 net/ipv6/output_core.c:178 ip6_send_skb+0xb3/0x300 net/ipv6/ip6_output.c:1699 ip6_push_pending_frames+0xdd/0x100 net/ipv6/ip6_output.c:1719 icmpv6_push_pending_frames+0x294/0x470 net/ipv6/icmp.c:288 icmp6_send+0x1c51/0x2310 net/ipv6/icmp.c:584 icmpv6_send+0x11e/0x26d net/ipv6/ip6_icmp.c:43 ip6_link_failure+0x26/0x560 net/ipv6/route.c:2297 dst_link_failure include/net/dst.h:438 [inline] ipip6_tunnel_xmit net/ipv6/sit.c:1001 [inline] sit_tunnel_xmit+0x1a25/0x28ff net/ipv6/sit.c:1038 __netdev_start_xmit include/linux/netdevice.h:4333 [inline] netdev_start_xmit include/linux/netdevice.h:4347 [inline] xmit_one net/core/dev.c:3256 [inline] dev_hard_start_xmit+0x1a8/0x960 net/core/dev.c:3272 __dev_queue_xmit+0x276a/0x2ec0 net/core/dev.c:3838 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 sctp_v6_xmit+0x38e/0x720 net/sctp/ipv6.c:229 sctp_packet_transmit+0x1c3c/0x3210 net/sctp/output.c:641 sctp_packet_singleton net/sctp/outqueue.c:791 [inline] sctp_outq_flush_ctrl.constprop.0+0x6d3/0xc50 net/sctp/outqueue.c:922 sctp_outq_flush net/sctp/outqueue.c:1204 [inline] sctp_outq_uncork+0x10b/0x200 net/sctp/outqueue.c:776 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1815 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1199 [inline] sctp_do_sm+0x520/0x4fd0 net/sctp/sm_sideeffect.c:1170 sctp_primitive_ASSOCIATE+0x98/0xc0 net/sctp/primitive.c:88 sctp_sendmsg_to_asoc+0x7b5/0x1ef0 net/sctp/socket.c:1945 sctp_sendmsg+0xeb8/0x1530 net/sctp/socket.c:2135 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_sendmsg+0x7bb/0x8f0 net/socket.c:2115 __sys_sendmsg net/socket.c:2153 [inline] __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2160 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45e179 Code: 3d b2 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 0b b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f8620131c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000028100 RCX: 000000000045e179 RDX: 0000000000000000 RSI: 00000000200006c0 RDI: 0000000000000003 RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007ffc23ef2c2f R14: 00007f86201329c0 R15: 000000000118cf4c ================================================================================