================================================================================ kvm [9864]: vcpu0, guest rIP: 0xcc disabled perfctr wrmsr: 0xc2 data 0x0 UBSAN: Undefined behaviour in ./include/net/red.h:272:18 shift exponent 174 is too large for 64-bit type 'long unsigned int' CPU: 0 PID: 9919 Comm: syz-executor.2 Not tainted 4.19.149-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 red_calc_qavg_from_idle_time include/net/red.h:272 [inline] red_adaptative_algo include/net/red.h:404 [inline] red_adaptative_timer+0x7ed/0x870 net/sched/sch_red.c:266 call_timer_fn+0x177/0x760 kernel/time/timer.c:1338 expire_timers+0x243/0x500 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1703 [inline] run_timer_softirq+0x259/0x730 kernel/time/timer.c:1716 __do_softirq+0x27d/0xad2 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x22d/0x270 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:544 [inline] smp_apic_timer_interrupt+0x15f/0x5d0 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:unwind_next_frame+0x151c/0x2430 arch/x86/kernel/unwind_orc.c:562 Code: 0f 95 c0 45 84 c1 0f 85 1c 0a 00 00 83 e0 07 40 38 c6 41 0f 9e c0 40 84 f6 0f 95 c0 41 84 c0 0f 85 03 0a 00 00 48 0f bf 71 02 <4c> 89 ff 4c 01 e6 e8 09 e9 ff ff 84 c0 0f 85 08 f9 ff ff e9 43 ef RSP: 0018:ffff88804537f0f0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 1ffff11008a6fe26 RCX: ffffffff8bfc8000 RDX: ffff88804537f208 RSI: ffffffffffffffd8 RDI: ffffffff8bfc8002 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001 R10: ffff88804537f227 R11: 0000000000000001 R12: ffff88804537fa80 R13: ffff88804537f1fd R14: ffff88804537f218 R15: ffff88804537f1c8 __save_stack_trace+0x83/0x100 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 __do_kmalloc_node mm/slab.c:3689 [inline] __kmalloc_node_track_caller+0x4c/0x70 mm/slab.c:3703 __kmalloc_reserve net/core/skbuff.c:137 [inline] __alloc_skb+0xae/0x580 net/core/skbuff.c:205 alloc_skb_fclone include/linux/skbuff.h:1037 [inline] tipc_buf_acquire+0x28/0xf0 net/tipc/msg.c:66 tipc_msg_build+0xf0/0x1040 net/tipc/msg.c:278 tipc_send_group_bcast+0x750/0xa60 net/tipc/socket.c:1050 __tipc_sendmsg+0xa2b/0x1320 net/tipc/socket.c:1311 tipc_sendmsg+0x4c/0x70 net/tipc/socket.c:1276 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xc7/0x130 net/socket.c:632 ___sys_sendmsg+0x3b3/0x8f0 net/socket.c:2115 __sys_sendmmsg+0x195/0x470 net/socket.c:2210 __do_sys_sendmmsg net/socket.c:2239 [inline] __se_sys_sendmmsg net/socket.c:2236 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2236 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45dd99 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:00007f728cd60c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000027f00 RCX: 000000000045dd99 RDX: 0000000000000092 RSI: 00000000200030c0 RDI: 0000000000000005 RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000101d0 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffc043fd54f R14: 00007f728cd619c0 R15: 000000000118bf2c ================================================================================ TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. overlayfs: upperdir is in-use as upperdir/workdir of another mount, mount with '-o index=off' to override exclusive upperdir protection. new mount options do not match the existing superblock, will be ignored Bluetooth: hci0: command 0x0406 tx timeout Bluetooth: hci1: command 0x0406 tx timeout Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready