Warning: Permanently added '10.128.1.104' (ECDSA) to the list of known hosts. [ 21.148122][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #280!!! 2021/11/18 14:01:06 fuzzer started 2021/11/18 14:01:06 connecting to host at 10.128.0.163:38533 2021/11/18 14:01:06 checking machine... 2021/11/18 14:01:06 checking revisions... 2021/11/18 14:01:06 testing simple program... [ 21.445850][ T23] audit: type=1400 audit(1637244066.600:73): avc: denied { getattr } for pid=362 comm="syz-fuzzer" path="user:[4026531837]" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 21.466726][ T370] cgroup: Unknown subsys name 'net' [ 21.469257][ T23] audit: type=1400 audit(1637244066.600:74): avc: denied { read } for pid=362 comm="syz-fuzzer" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 21.495530][ T23] audit: type=1400 audit(1637244066.600:75): avc: denied { open } for pid=362 comm="syz-fuzzer" path="user:[4026531837]" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 21.495691][ T370] cgroup: Unknown subsys name 'devices' [ 21.518855][ T23] audit: type=1400 audit(1637244066.610:76): avc: denied { read } for pid=362 comm="syz-fuzzer" name="raw-gadget" dev="devtmpfs" ino=165 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 21.547162][ T23] audit: type=1400 audit(1637244066.610:77): avc: denied { open } for pid=362 comm="syz-fuzzer" path="/dev/raw-gadget" dev="devtmpfs" ino=165 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 21.570527][ T23] audit: type=1400 audit(1637244066.620:78): avc: denied { mounton } for pid=370 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=1136 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 21.593445][ T23] audit: type=1400 audit(1637244066.620:79): avc: denied { mount } for pid=370 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 21.615708][ T23] audit: type=1400 audit(1637244066.630:80): avc: denied { unmount } for pid=370 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 21.719823][ T370] cgroup: Unknown subsys name 'hugetlb' [ 21.725705][ T370] cgroup: Unknown subsys name 'rlimit' [ 21.909401][ T23] audit: type=1400 audit(1637244067.070:81): avc: denied { setattr } for pid=370 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=165 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 21.938693][ T23] audit: type=1400 audit(1637244067.100:82): avc: denied { execmem } for pid=372 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 22.018539][ T373] bridge0: port 1(bridge_slave_0) entered blocking state [ 22.025899][ T373] bridge0: port 1(bridge_slave_0) entered disabled state [ 22.033874][ T373] device bridge_slave_0 entered promiscuous mode [ 22.040974][ T373] bridge0: port 2(bridge_slave_1) entered blocking state [ 22.048220][ T373] bridge0: port 2(bridge_slave_1) entered disabled state [ 22.055800][ T373] device bridge_slave_1 entered promiscuous mode [ 22.087123][ T373] bridge0: port 2(bridge_slave_1) entered blocking state [ 22.094261][ T373] bridge0: port 2(bridge_slave_1) entered forwarding state [ 22.101571][ T373] bridge0: port 1(bridge_slave_0) entered blocking state [ 22.108627][ T373] bridge0: port 1(bridge_slave_0) entered forwarding state [ 22.127706][ T24] bridge0: port 1(bridge_slave_0) entered disabled state [ 22.135193][ T24] bridge0: port 2(bridge_slave_1) entered disabled state [ 22.142915][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 22.150661][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 22.160098][ T67] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 22.168500][ T67] bridge0: port 1(bridge_slave_0) entered blocking state [ 22.175588][ T67] bridge0: port 1(bridge_slave_0) entered forwarding state [ 22.184251][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 22.192828][ T24] bridge0: port 2(bridge_slave_1) entered blocking state [ 22.200061][ T24] bridge0: port 2(bridge_slave_1) entered forwarding state [ 22.213186][ T67] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 22.222426][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 22.236841][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 22.248227][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 22.258085][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 22.266395][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 22.275144][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 22.283536][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 22.295406][ T24] ================================================================================ [ 22.304869][ T24] UBSAN: object-size-mismatch in ./include/linux/skbuff.h:2023:28 [ 22.312794][ T24] member access within address ffffc9000019f1c0 with insufficient space [ 22.321226][ T24] for an object of type 'struct sk_buff' [ 22.326942][ T24] CPU: 1 PID: 24 Comm: kworker/1:1 Not tainted 5.10.79-syzkaller-01201-g87acf4924e1b #0 [ 22.336653][ T24] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 22.346757][ T24] Workqueue: ipv6_addrconf addrconf_dad_work [ 22.352746][ T24] Call Trace: [ 22.356018][ T24] dump_stack_lvl+0x1e2/0x24b [ 22.360685][ T24] ? show_regs_print_info+0x18/0x18 [ 22.365903][ T24] ? wg_allowedips_lookup_dst+0x190/0x190 [ 22.371602][ T24] dump_stack+0x15/0x1d [ 22.375740][ T24] ubsan_type_mismatch_common+0x1ed/0x3a0 [ 22.381446][ T24] ? __sanitizer_cov_trace_switch+0x74/0x90 [ 22.387337][ T24] __ubsan_handle_type_mismatch_v1+0x5b/0x70 [ 22.393401][ T24] wg_xmit+0x4a2/0xae0 [ 22.397446][ T24] ? wg_stop+0x140/0x140 [ 22.401667][ T24] ? __sanitizer_cov_trace_const_cmp2+0x19/0x20 [ 22.407882][ T24] netdev_start_xmit+0x8a/0x160 [ 22.412726][ T24] dev_hard_start_xmit+0x18d/0x2f0 [ 22.417813][ T24] __dev_queue_xmit+0xfbe/0x1bb0 [ 22.422729][ T24] ? dev_queue_xmit+0x20/0x20 [ 22.427383][ T24] ? __local_bh_enable_ip+0xa8/0x170 [ 22.432651][ T24] ? do_raw_spin_unlock+0x50/0x50 [ 22.437653][ T24] ? _local_bh_enable+0x30/0x30 [ 22.442489][ T24] ? __sanitizer_cov_trace_const_cmp4+0x19/0x20 [ 22.448708][ T24] ? ndisc_constructor+0x690/0x8a0 [ 22.453802][ T24] ? _raw_write_unlock_bh+0x31/0x47 [ 22.458979][ T24] ? dev_hard_header+0xdb/0xf0 [ 22.463724][ T24] dev_queue_xmit+0x17/0x20 [ 22.468203][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 22.468216][ T24] neigh_connected_output+0x288/0x2b0 [ 22.468234][ T24] ip6_finish_output2+0xde2/0x1440 [ 22.487666][ T24] ? __rcu_read_lock+0x50/0x50 [ 22.492405][ T24] ? __ip6_finish_output+0x520/0x520 [ 22.497841][ T24] ? dst_cow_metrics_generic+0x55/0x1d0 [ 22.503373][ T24] ? __sanitizer_cov_trace_const_cmp4+0x19/0x20 [ 22.509956][ T24] ? ip6_skb_dst_mtu+0xaf/0x260 [ 22.514788][ T24] __ip6_finish_output+0x3e4/0x520 [ 22.520024][ T24] ip6_finish_output+0x3f/0x220 [ 22.525166][ T24] ? ip6_output+0x1d3/0x4b0 [ 22.529749][ T24] ip6_output+0x1f8/0x4b0 [ 22.534782][ T24] ? asan.module_dtor+0x20/0x20 [ 22.539964][ T24] ? skb_dst+0x40/0x40 [ 22.544028][ T24] ? __rcu_read_lock+0x50/0x50 [ 22.548902][ T24] ? selinux_ipv6_forward+0x50/0x50 [ 22.554206][ T24] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 22.559902][ T24] ? nf_hook_slow+0x150/0x1b0 [ 22.564763][ T24] NF_HOOK+0xdd/0x280 [ 22.568723][ T24] ? addrconf_addr_solict_mult+0xe0/0xe0 [ 22.574334][ T24] ? NF_HOOK+0x280/0x280 [ 22.578589][ T24] ? __rcu_read_lock+0x50/0x50 [ 22.583328][ T24] ? __sanitizer_cov_trace_const_cmp4+0x19/0x20 [ 22.589543][ T24] ? ndisc_send_skb+0x547/0x9f0 [ 22.594369][ T24] ? memcpy+0x56/0x70 [ 22.598327][ T24] ndisc_send_skb+0x646/0x9f0 [ 22.602979][ T24] ? slab_post_alloc_hook+0x90/0xa0 [ 22.608156][ T24] ? ndisc_fill_addr_option+0x2f0/0x2f0 [ 22.613765][ T24] ? skb_set_owner_w+0x1a8/0x310 [ 22.618692][ T24] ? __sanitizer_cov_trace_cmp4+0x19/0x20 [ 22.624385][ T24] ? skb_put+0x11d/0x200 [ 22.628602][ T24] ndisc_send_rs+0x26c/0x360 [ 22.633171][ T24] addrconf_dad_completed+0x4f3/0x9f0 [ 22.638687][ T24] ? addrconf_dad_stop+0x430/0x430 [ 22.643847][ T24] ? __queue_delayed_work+0x16c/0x1f0 [ 22.649212][ T24] addrconf_dad_work+0x9c1/0x1520 [ 22.654312][ T24] ? __kasan_check_write+0x14/0x20 [ 22.659407][ T24] ? ipv6_use_optimistic_addr+0x1d0/0x1d0 [ 22.665115][ T24] ? __kasan_check_write+0x14/0x20 [ 22.670385][ T24] process_one_work+0x3ca/0x660 [ 22.675217][ T24] worker_thread+0x709/0xa20 [ 22.679797][ T24] ? __kthread_parkme+0x11b/0x150 [ 22.684980][ T24] kthread+0x371/0x390 [ 22.689033][ T24] ? pr_cont_work+0x110/0x110 [ 22.693689][ T24] ? __list_add+0xc0/0xc0 [ 22.698000][ T24] ret_from_fork+0x1f/0x30 [ 22.702433][ T24] ================================================================================ [ 22.711713][ T24] ================================================================================ [ 22.721003][ T24] UBSAN: object-size-mismatch in ./include/linux/skbuff.h:1916:2 [ 22.728717][ T24] member access within address ffffc9000019f1c0 with insufficient space [ 22.737022][ T24] for an object of type 'struct sk_buff' [ 22.742670][ T24] CPU: 1 PID: 24 Comm: kworker/1:1 Not tainted 5.10.79-syzkaller-01201-g87acf4924e1b #0 [ 22.752369][ T24] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 22.762411][ T24] Workqueue: ipv6_addrconf addrconf_dad_work [ 22.768466][ T24] Call Trace: [ 22.771733][ T24] dump_stack_lvl+0x1e2/0x24b [ 22.776396][ T24] ? show_regs_print_info+0x18/0x18 [ 22.781576][ T24] ? wg_allowedips_lookup_dst+0x190/0x190 [ 22.787273][ T24] dump_stack+0x15/0x1d [ 22.791425][ T24] ubsan_type_mismatch_common+0x1ed/0x3a0 [ 22.797181][ T24] __ubsan_handle_type_mismatch_v1+0x5b/0x70 [ 22.803681][ T24] wg_xmit+0x513/0xae0 [ 22.807791][ T24] ? wg_stop+0x140/0x140 [ 22.812052][ T24] ? __sanitizer_cov_trace_const_cmp2+0x19/0x20 [ 22.818282][ T24] netdev_start_xmit+0x8a/0x160 [ 22.823129][ T24] dev_hard_start_xmit+0x18d/0x2f0 [ 22.828219][ T24] __dev_queue_xmit+0xfbe/0x1bb0 [ 22.833147][ T24] ? dev_queue_xmit+0x20/0x20 [ 22.837802][ T24] ? __local_bh_enable_ip+0xa8/0x170 [ 22.843085][ T24] ? do_raw_spin_unlock+0x50/0x50 [ 22.848098][ T24] ? _local_bh_enable+0x30/0x30 [ 22.852934][ T24] ? __sanitizer_cov_trace_const_cmp4+0x19/0x20 [ 22.859154][ T24] ? ndisc_constructor+0x690/0x8a0 [ 22.864246][ T24] ? _raw_write_unlock_bh+0x31/0x47 [ 22.869423][ T24] ? dev_hard_header+0xdb/0xf0 [ 22.874185][ T24] dev_queue_xmit+0x17/0x20 [ 22.878664][ T24] neigh_connected_output+0x288/0x2b0 [ 22.884013][ T24] ip6_finish_output2+0xde2/0x1440 [ 22.889112][ T24] ? __rcu_read_lock+0x50/0x50 [ 22.893859][ T24] ? __ip6_finish_output+0x520/0x520 [ 22.899128][ T24] ? dst_cow_metrics_generic+0x55/0x1d0 [ 22.904650][ T24] ? __sanitizer_cov_trace_const_cmp4+0x19/0x20 [ 22.910969][ T24] ? ip6_skb_dst_mtu+0xaf/0x260 [ 22.915807][ T24] __ip6_finish_output+0x3e4/0x520 [ 22.920892][ T24] ip6_finish_output+0x3f/0x220 [ 22.925715][ T24] ? ip6_output+0x1d3/0x4b0 [ 22.930196][ T24] ip6_output+0x1f8/0x4b0 [ 22.934498][ T24] ? asan.module_dtor+0x20/0x20 [ 22.939319][ T24] ? skb_dst+0x40/0x40 [ 22.943367][ T24] ? __rcu_read_lock+0x50/0x50 [ 22.948122][ T24] ? selinux_ipv6_forward+0x50/0x50 [ 22.953312][ T24] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 22.959017][ T24] ? nf_hook_slow+0x150/0x1b0 [ 22.963668][ T24] NF_HOOK+0xdd/0x280 [ 22.967628][ T24] ? addrconf_addr_solict_mult+0xe0/0xe0 [ 22.973251][ T24] ? NF_HOOK+0x280/0x280 [ 22.977466][ T24] ? __rcu_read_lock+0x50/0x50 [ 22.982204][ T24] ? __sanitizer_cov_trace_const_cmp4+0x19/0x20 [ 22.988421][ T24] ? ndisc_send_skb+0x547/0x9f0 [ 22.993420][ T24] ? memcpy+0x56/0x70 [ 22.997394][ T24] ndisc_send_skb+0x646/0x9f0 [ 23.002047][ T24] ? slab_post_alloc_hook+0x90/0xa0 [ 23.007219][ T24] ? ndisc_fill_addr_option+0x2f0/0x2f0 [ 23.012737][ T24] ? skb_set_owner_w+0x1a8/0x310 [ 23.017660][ T24] ? __sanitizer_cov_trace_cmp4+0x19/0x20 [ 23.023378][ T24] ? skb_put+0x11d/0x200 [ 23.027598][ T24] ndisc_send_rs+0x26c/0x360 [ 23.032167][ T24] addrconf_dad_completed+0x4f3/0x9f0 [ 23.037528][ T24] ? addrconf_dad_stop+0x430/0x430 [ 23.042633][ T24] ? __queue_delayed_work+0x16c/0x1f0 [ 23.047986][ T24] addrconf_dad_work+0x9c1/0x1520 [ 23.053004][ T24] ? __kasan_check_write+0x14/0x20 [ 23.058094][ T24] ? ipv6_use_optimistic_addr+0x1d0/0x1d0 [ 23.063788][ T24] ? __kasan_check_write+0x14/0x20 [ 23.068873][ T24] process_one_work+0x3ca/0x660 [ 23.073896][ T24] worker_thread+0x709/0xa20 [ 23.078463][ T24] ? __kthread_parkme+0x11b/0x150 [ 23.083723][ T24] kthread+0x371/0x390 2021/11/18 14:01:08 building call list... [ 23.088114][ T24] ? pr_cont_work+0x110/0x110 [ 23.092799][ T24] ? __list_add+0xc0/0xc0 [ 23.097104][ T24] ret_from_fork+0x1f/0x30 [ 23.101547][ T24] ================================================================================ [ 23.108533][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 23.123407][ T373] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 23.668356][ T7] device bridge_slave_1 left promiscuous mode [ 23.674624][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.682577][ T7] device bridge_slave_0 left promiscuous mode [ 23.688880][ T7] bridge0: port 1(bridge_slave_0) entered disabled state