================================================================================
UBSAN: shift-out-of-bounds in ./include/net/red.h:312:18
shift exponent 109 is too large for 64-bit type 'unsigned long'
CPU: 1 PID: 11789 Comm: syz-executor.2 Not tainted 5.12.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x176/0x24e lib/dump_stack.c:120
 ubsan_epilogue lib/ubsan.c:148 [inline]
 __ubsan_handle_shift_out_of_bounds+0x432/0x4d0 lib/ubsan.c:327
 red_calc_qavg_from_idle_time include/net/red.h:312 [inline]
 red_calc_qavg include/net/red.h:353 [inline]
 red_enqueue+0x1081/0x11e0 net/sched/sch_red.c:77
 __dev_xmit_skb net/core/dev.c:3837 [inline]
 __dev_queue_xmit+0xe5a/0x2a50 net/core/dev.c:4150
 neigh_output include/net/neighbour.h:510 [inline]
 ip6_finish_output2+0x10be/0x1460 net/ipv6/ip6_output.c:117
 dst_output include/net/dst.h:448 [inline]
 NF_HOOK include/linux/netfilter.h:301 [inline]
 ndisc_send_skb+0x93b/0xd50 net/ipv6/ndisc.c:508
 ndisc_send_ns+0x5d9/0x790 net/ipv6/ndisc.c:650
 ndisc_solicit+0x309/0x4a0 net/ipv6/ndisc.c:737
 neigh_probe net/core/neighbour.c:1010 [inline]
 __neigh_event_send+0xb27/0x1260 net/core/neighbour.c:1171
 neigh_event_send include/net/neighbour.h:444 [inline]
 neigh_resolve_output+0x18c/0x6b0 net/core/neighbour.c:1475
 neigh_output include/net/neighbour.h:510 [inline]
 ip6_finish_output2+0x10be/0x1460 net/ipv6/ip6_output.c:117
 ip6_send_skb+0x109/0x220 net/ipv6/ip6_output.c:1904
 udp_v6_send_skb+0x9fe/0x1580 net/ipv6/udp.c:1234
 udpv6_sendmsg+0x2b8e/0x3400 net/ipv6/udp.c:1532
 sock_sendmsg_nosec net/socket.c:654 [inline]
 sock_sendmsg net/socket.c:674 [inline]
 ____sys_sendmsg+0x519/0x800 net/socket.c:2350
 ___sys_sendmsg net/socket.c:2404 [inline]
 __sys_sendmsg+0x2bf/0x370 net/socket.c:2433
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x465f69
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:00007f5acbd3b188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465f69
RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004
RBP: 00000000004bfa67 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffe4f4c116f R14: 00007f5acbd3b300 R15: 0000000000022000
================================================================================