ip6_tunnel: ip6gretap0 xmit: Local address not yet configured! ================================================================================ UBSAN: Undefined behaviour in ./include/net/red.h:272:18 shift exponent 71 is too large for 64-bit type 'long unsigned int' CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.19.152-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_calc_qavg include/net/red.h:313 [inline] red_enqueue+0x2064/0x2200 net/sched/sch_red.c:68 __dev_xmit_skb net/core/dev.c:3494 [inline] __dev_queue_xmit+0x14df/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+0x1c55/0x22e0 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] ndisc_error_report+0xc7/0x190 net/ipv6/ndisc.c:695 neigh_invalidate+0x22c/0x540 net/core/neighbour.c:900 neigh_timer_handler+0x9b0/0xc70 net/core/neighbour.c:986 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+0x257/0x730 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+0x15d/0x5d0 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61 Code: fd ff ff 48 89 df e8 f1 0e 39 f9 e9 59 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d b4 6b 5b 00 fb f4 90 e9 07 00 00 00 0f 00 2d a4 6b 5b 00 f4 c3 90 90 41 56 41 55 RSP: 0018:ffff8880b566fd40 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1500214 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880b565ec44 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8a801090 R13: 1ffff11016acdfb2 R14: 0000000000000000 R15: 0000000000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline] default_idle+0x49/0x320 arch/x86/kernel/process.c:557 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x2f8/0x500 kernel/sched/idle.c:263 cpu_startup_entry+0xc5/0xd6 kernel/sched/idle.c:369 start_secondary+0x461/0x650 arch/x86/kernel/smpboot.c:271 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 ================================================================================ (unnamed net_device) (uninitialized): option lp_interval: invalid value (18446744073709551615) (unnamed net_device) (uninitialized): option lp_interval: allowed values 1 - 2147483647 sctp: [Deprecated]: syz-executor.1 (pid 16195) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor.1 (pid 16198) Use of int in maxseg socket option. Use struct sctp_assoc_value instead EXT4-fs (loop4): Can't read superblock on 2nd try FAT-fs (loop1): Directory bread(block 3) failed FAT-fs (loop1): Directory bread(block 4) failed FAT-fs (loop1): Directory bread(block 5) failed FAT-fs (loop1): Directory bread(block 6) failed EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try caif_hsicaif_hsi_newlink: failed to get the cfhsi_ops EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try audit: type=1400 audit(1603310137.177:15): avc: denied { block_suspend } for pid=16505 comm="syz-executor.3" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try EXT4-fs (loop4): Can't read superblock on 2nd try