DUID 00:04:e6:bc:8e:bc:c3:7a:f3:fc:35:c5:a5:4f:9b:64:01:ce forked to background, child pid 3172 [ 21.173321][ T3173] 8021q: adding VLAN 0 to HW filter on device bond0 [ 21.184823][ T3173] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.78' (ECDSA) to the list of known hosts. 2022/04/26 00:06:46 fuzzer started 2022/04/26 00:06:46 dialing manager at 10.128.0.169:40067 syzkaller login: [ 35.660114][ T3592] cgroup: Unknown subsys name 'net' [ 35.762601][ T3592] cgroup: Unknown subsys name 'rlimit' 2022/04/26 00:06:47 syscalls: 3654 2022/04/26 00:06:47 code coverage: enabled 2022/04/26 00:06:47 comparison tracing: enabled 2022/04/26 00:06:47 extra coverage: enabled 2022/04/26 00:06:47 delay kcov mmap: enabled 2022/04/26 00:06:47 setuid sandbox: enabled 2022/04/26 00:06:47 namespace sandbox: enabled 2022/04/26 00:06:47 Android sandbox: /sys/fs/selinux/policy does not exist 2022/04/26 00:06:47 fault 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(executing program) 2022/04/26 00:07:44 fetching corpus: 16150, signal 492606/624815 (executing program) 2022/04/26 00:07:44 fetching corpus: 16200, signal 492985/624815 (executing program) 2022/04/26 00:07:45 fetching corpus: 16250, signal 493814/624815 (executing program) 2022/04/26 00:07:45 fetching corpus: 16300, signal 494235/624815 (executing program) [ 200.179081][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 200.185806][ C0] rcu: 0-....: (10798 ticks this GP) idle=9d3/1/0x4000000000000000 softirq=4822/4823 fqs=4213 [ 200.196219][ C0] (t=10500 jiffies g=3365 q=182 ncpus=2) [ 200.201920][ C0] NMI backtrace for cpu 0 [ 200.206221][ C0] CPU: 0 PID: 3584 Comm: syz-fuzzer Not tainted 5.18.0-rc3-next-20220422-syzkaller #0 [ 200.215746][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 200.225785][ C0] Call Trace: [ 200.229050][ C0] [ 200.231880][ C0] dump_stack_lvl+0xcd/0x134 [ 200.236466][ C0] nmi_cpu_backtrace.cold+0x47/0x144 [ 200.241751][ C0] ? lapic_can_unplug_cpu+0x80/0x80 [ 200.246935][ C0] nmi_trigger_cpumask_backtrace+0x1e6/0x230 [ 200.252906][ C0] rcu_dump_cpu_stacks+0x262/0x3f0 [ 200.258007][ C0] rcu_sched_clock_irq.cold+0x144/0x8fc [ 200.263542][ C0] ? do_raw_spin_unlock+0x171/0x230 [ 200.268719][ C0] ? rcutree_dead_cpu+0x30/0x30 [ 200.273566][ C0] ? timekeeping_advance+0x978/0xe30 [ 200.278837][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 200.283685][ C0] ? timekeeping_inject_offset+0x620/0x620 [ 200.289487][ C0] ? tick_sched_do_timer+0x470/0x470 [ 200.294759][ C0] update_process_times+0x16d/0x200 [ 200.299947][ C0] tick_sched_handle+0x9b/0x180 [ 200.304797][ C0] tick_sched_timer+0xee/0x120 [ 200.309556][ C0] __hrtimer_run_queues+0x1c0/0xe50 [ 200.314750][ C0] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 200.320723][ C0] ? ktime_get_update_offsets_now+0x3eb/0x5c0 [ 200.326779][ C0] hrtimer_interrupt+0x31c/0x790 [ 200.331707][ C0] __sysvec_apic_timer_interrupt+0x146/0x530 [ 200.337676][ C0] sysvec_apic_timer_interrupt+0x40/0xc0 [ 200.343289][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 200.349253][ C0] RIP: 0010:kvm_wait+0x98/0x100 [ 200.354085][ C0] Code: fa 83 e2 07 38 d0 7f 04 84 c0 75 63 0f b6 07 40 38 c6 74 35 48 83 c4 10 c3 c3 e8 23 91 4b 00 eb 07 0f 00 2d da b1 94 08 fb f4 <48> 83 c4 10 c3 89 74 24 0c 48 89 3c 24 e8 56 8f 4b 00 8b 74 24 0c [ 200.373669][ C0] RSP: 0018:ffffc90000007360 EFLAGS: 00000246 [ 200.379714][ C0] RAX: 0000000000000007 RBX: 0000000000000000 RCX: 1ffffffff1b73199 [ 200.387664][ C0] RDX: 0000000000000000 RSI: ffffffff81807171 RDI: ffffffff8134dffd [ 200.395614][ C0] RBP: ffff888018b826c8 R08: 0000000000000000 R09: 0000000000000000 [ 200.403563][ C0] R10: ffffffff81807158 R11: 0000000000000001 R12: 0000000000000000 [ 200.411510][ C0] R13: ffffed10031704d9 R14: 0000000000000001 R15: ffff8880b9c3ae40 [ 200.419462][ C0] ? trace_hardirqs_on+0x38/0x1c0 [ 200.424476][ C0] ? trace_hardirqs_on+0x51/0x1c0 [ 200.429482][ C0] ? kvm_wait+0x8d/0x100 [ 200.433708][ C0] __pv_queued_spin_lock_slowpath+0x8c7/0xb50 [ 200.439755][ C0] ? trace_contention_end.constprop.0+0x1b0/0x1b0 [ 200.446146][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 200.451589][ C0] ? lock_acquire+0x480/0x570 [ 200.456249][ C0] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 200.462472][ C0] ? debug_locks_off+0x23/0x80 [ 200.467226][ C0] do_raw_spin_lock+0x200/0x2a0 [ 200.472067][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 200.476982][ C0] ? page_to_skb+0x78c/0xc10 [ 200.481561][ C0] __get_task_comm+0x23/0x50 [ 200.486138][ C0] __set_page_owner+0x253/0x380 [ 200.490981][ C0] get_page_from_freelist+0xba2/0x3e00 [ 200.496454][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 200.501299][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 200.506744][ C0] ? lock_release+0x560/0x780 [ 200.511412][ C0] ? __zone_watermark_ok+0x450/0x450 [ 200.516677][ C0] ? prepare_alloc_pages+0x17b/0x570 [ 200.521950][ C0] __alloc_pages+0x1b2/0x500 [ 200.526520][ C0] ? __alloc_pages_slowpath.constprop.0+0x20a0/0x20a0 [ 200.533266][ C0] ? ip_local_deliver_finish+0x324/0x4c0 [ 200.538900][ C0] ? ip_sublist_rcv_finish+0x9a/0x2c0 [ 200.544269][ C0] alloc_pages+0x1aa/0x310 [ 200.548684][ C0] allocate_slab+0x26c/0x3c0 [ 200.553267][ C0] ___slab_alloc+0x985/0xd90 [ 200.557859][ C0] ? __build_skb+0x21/0x60 [ 200.562268][ C0] ? __build_skb+0x21/0x60 [ 200.566673][ C0] __slab_alloc.constprop.0+0x4d/0xa0 [ 200.572038][ C0] ? __build_skb+0x21/0x60 [ 200.576439][ C0] kmem_cache_alloc+0x360/0x3b0 [ 200.581286][ C0] __build_skb+0x21/0x60 [ 200.585513][ C0] build_skb+0x1e/0x280 [ 200.589653][ C0] page_to_skb+0x78c/0xc10 [ 200.594052][ C0] receive_buf+0xdc5/0x54c0 [ 200.598538][ C0] ? virtnet_restore+0x8b0/0x8b0 [ 200.603455][ C0] ? qmi_handle_release+0x101/0x5f0 [ 200.608637][ C0] ? __sanitizer_cov_trace_cmp2+0x22/0x80 [ 200.614349][ C0] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 200.620570][ C0] ? detach_buf_split+0x543/0x710 [ 200.625571][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 200.631021][ C0] ? virtqueue_get_buf_ctx_split+0x423/0x5f0 [ 200.636982][ C0] virtnet_poll+0x5cd/0x11a0 [ 200.641563][ C0] ? receive_buf+0x54c0/0x54c0 [ 200.646311][ C0] ? lock_release+0x780/0x780 [ 200.650972][ C0] ? lock_release+0x560/0x780 [ 200.655645][ C0] ? lock_release+0x780/0x780 [ 200.660338][ C0] ? clockevents_program_event+0x141/0x370 [ 200.666138][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 200.670984][ C0] __napi_poll+0xb3/0x6e0 [ 200.675311][ C0] net_rx_action+0x8ec/0xc60 [ 200.679899][ C0] ? napi_threaded_poll+0x520/0x520 [ 200.685099][ C0] ? sched_clock_cpu+0x15/0x1f0 [ 200.689946][ C0] __do_softirq+0x29b/0x9c2 [ 200.694446][ C0] __irq_exit_rcu+0x123/0x180 [ 200.699114][ C0] irq_exit_rcu+0x5/0x20 [ 200.703340][ C0] common_interrupt+0xa9/0xc0 [ 200.708009][ C0] [ 200.710920][ C0] [ 200.713834][ C0] asm_common_interrupt+0x1e/0x40 [ 200.718844][ C0] RIP: 0010:strscpy+0x0/0x2a0 [ 200.723511][ C0] Code: 84 00 00 00 00 00 0f 1f 40 00 53 be 01 00 00 00 48 89 fb e8 62 3f a7 fd 48 8b 03 5b c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 <48> 85 d2 0f 84 58 02 00 00 41 57 41 56 41 55 41 54 49 89 d4 55 53 [ 200.743099][ C0] RSP: 0018:ffffc90002e6f2f8 EFLAGS: 00000293 [ 200.749150][ C0] RAX: 0000000000000000 RBX: 0000000000000010 RCX: 0000000000000000 [ 200.757119][ C0] RDX: 0000000000000010 RSI: ffff888018b825b0 RDI: ffff8880138c8ea8 [ 200.765071][ C0] RBP: ffff8880138c8ea8 R08: 0000000000000001 R09: 0000000000000003 [ 200.773023][ C0] R10: fffff520005cde56 R11: 0000000000000001 R12: ffff888018b825b0 [ 200.780971][ C0] R13: 0000000000000010 R14: ffff8880138c8e88 R15: 0000000000000007 [ 200.788927][ C0] strscpy_pad+0x20/0x70 [ 200.793157][ C0] __get_task_comm+0x35/0x50 [ 200.797729][ C0] __set_page_owner+0x253/0x380 [ 200.802559][ C0] get_page_from_freelist+0xba2/0x3e00 [ 200.808010][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 200.812854][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 200.817784][ C0] ? tcp_v4_rcv+0x280/0x3bc0 [ 200.822457][ C0] ? __zone_watermark_ok+0x450/0x450 [ 200.827731][ C0] ? prepare_alloc_pages+0x17b/0x570 [ 200.833005][ C0] __alloc_pages+0x1b2/0x500 [ 200.837586][ C0] ? __alloc_pages_slowpath.constprop.0+0x20a0/0x20a0 [ 200.844333][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 200.849783][ C0] ? lock_release+0x560/0x780 [ 200.854451][ C0] ? __might_fault+0xd1/0x170 [ 200.859109][ C0] ? lock_acquire+0x480/0x570 [ 200.863777][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 200.869228][ C0] ? lock_release+0x560/0x780 [ 200.873890][ C0] ? ___slab_alloc+0x253/0xd90 [ 200.878646][ C0] alloc_pages+0x1aa/0x310 [ 200.883066][ C0] ? copyout.part.0+0xdf/0x100 [ 200.887829][ C0] allocate_slab+0x26c/0x3c0 [ 200.892433][ C0] ___slab_alloc+0x985/0xd90 [ 200.897015][ C0] ? __alloc_skb+0x215/0x340 [ 200.901595][ C0] ? lock_release+0x560/0x780 [ 200.906260][ C0] ? lock_release+0x780/0x780 [ 200.910925][ C0] ? tcp_mstamp_refresh+0x12/0xa0 [ 200.915931][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 200.920771][ C0] ? __alloc_skb+0x215/0x340 [ 200.925343][ C0] __slab_alloc.constprop.0+0x4d/0xa0 [ 200.930707][ C0] kmem_cache_alloc_node+0x122/0x3f0 [ 200.935980][ C0] ? __alloc_skb+0x215/0x340 [ 200.940555][ C0] __alloc_skb+0x215/0x340 [ 200.944957][ C0] __tcp_send_ack.part.0+0x67/0x760 [ 200.950139][ C0] tcp_send_ack+0x7d/0xa0 [ 200.954458][ C0] tcp_cleanup_rbuf+0x46c/0x5b0 [ 200.959294][ C0] tcp_recvmsg_locked+0x738/0x1fd0 [ 200.964388][ C0] ? rcu_tasks_trace_postgp+0xa37/0xa80 [ 200.969921][ C0] ? tcp_update_recv_tstamps+0x230/0x230 [ 200.975537][ C0] ? __local_bh_enable_ip+0xa0/0x120 [ 200.980813][ C0] tcp_recvmsg+0x127/0x600 [ 200.985219][ C0] ? tcp_recv_timestamp+0x6e0/0x6e0 [ 200.990401][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 200.995862][ C0] ? aa_sk_perm+0x30f/0xaa0 [ 201.000352][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 201.005796][ C0] inet_recvmsg+0x115/0x5e0 [ 201.010283][ C0] ? lock_acquire+0x480/0x570 [ 201.014947][ C0] ? inet_sendpage+0x140/0x140 [ 201.019711][ C0] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 201.025935][ C0] ? security_socket_recvmsg+0x8f/0xc0 [ 201.031379][ C0] sock_read_iter+0x336/0x470 [ 201.036046][ C0] ? ____sys_recvmsg+0x5f0/0x5f0 [ 201.040972][ C0] ? 0xffffffff81000000 [ 201.045104][ C0] ? finish_task_switch.isra.0+0x314/0xb80 [ 201.050894][ C0] ? aa_path_link+0x2f0/0x2f0 [ 201.055552][ C0] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 201.061780][ C0] new_sync_read+0x4f9/0x5f0 [ 201.066354][ C0] ? ksys_lseek+0x1b0/0x1b0 [ 201.070841][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 201.075679][ C0] ? 0xffffffff81000000 [ 201.079809][ C0] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 201.086124][ C0] ? security_file_permission+0xab/0xd0 [ 201.091668][ C0] vfs_read+0x492/0x5d0 [ 201.095826][ C0] ksys_read+0x1e8/0x250 [ 201.100070][ C0] ? vfs_write+0xac0/0xac0 [ 201.104484][ C0] ? syscall_enter_from_user_mode+0x21/0x70 [ 201.110371][ C0] do_syscall_64+0x35/0xb0 [ 201.114781][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 201.120670][ C0] RIP: 0033:0x49dfbb [ 201.124550][ C0] Code: e8 aa 4b fc ff eb 88 cc cc cc cc cc cc cc cc e8 bb 8f fc ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 201.144139][ C0] RSP: 002b:000000c00003d948 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 201.152532][ C0] RAX: ffffffffffffffda RBX: 000000c00001e000 RCX: 000000000049dfbb [ 201.160490][ C0] RDX: 0000000000001000 RSI: 000000c000672000 RDI: 0000000000000006 [ 201.168440][ C0] RBP: 000000c00003d998 R08: 0000000000000001 R09: 000000c0001de300 [ 201.176401][ C0] R10: 000000c000198070 R11: 0000000000000212 R12: 0000000000000000 [ 201.184348][ C0] R13: 0000000000000000 R14: 000000c000263040 R15: 0000000000000002 [ 201.192302][ C0]