Warning: Permanently added '10.128.1.37' (ECDSA) to the list of known hosts. 2020/06/17 23:26:38 fuzzer started 2020/06/17 23:26:38 dialing manager at 10.128.0.105:41225 2020/06/17 23:26:39 syscalls: 3089 2020/06/17 23:26:39 code coverage: enabled 2020/06/17 23:26:39 comparison tracing: enabled 2020/06/17 23:26:39 extra coverage: enabled 2020/06/17 23:26:39 setuid sandbox: enabled 2020/06/17 23:26:39 namespace sandbox: enabled 2020/06/17 23:26:39 Android sandbox: /sys/fs/selinux/policy does not exist 2020/06/17 23:26:39 fault injection: enabled 2020/06/17 23:26:39 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/06/17 23:26:39 net packet injection: enabled 2020/06/17 23:26:39 net device setup: enabled 2020/06/17 23:26:39 concurrency sanitizer: enabled 2020/06/17 23:26:39 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/06/17 23:26:39 USB emulation: enabled 2020/06/17 23:26:39 suppressing KCSAN reports in functions: '__ext4_new_inode' 'generic_write_end' 'generic_file_read_iter' [ 57.500032][ T8909] ================================================================== [ 57.509005][ T8909] BUG: KCSAN: data-race in ep_poll / ep_poll_callback [ 57.516706][ T8909] [ 57.519194][ T8909] write to 0xffff8881255b6f50 of 8 bytes by interrupt on cpu 0: [ 57.527372][ T8909] ep_poll_callback+0x5f2/0x6c0 [ 57.532325][ T8909] __wake_up_common+0x76/0x180 [ 57.537293][ T8909] __wake_up_common_lock+0x77/0xb0 [ 57.542997][ T8909] sock_def_readable+0x9d/0x130 [ 57.548119][ T8909] tcp_data_ready+0x76/0xc0 [ 57.552711][ T8909] tcp_rcv_established+0xcb8/0xee0 [ 57.557892][ T8909] tcp_v4_do_rcv+0x396/0x4f0 [ 57.562783][ T8909] tcp_v4_rcv+0x1c55/0x1e10 [ 57.567374][ T8909] ip_protocol_deliver_rcu+0x4b/0x410 [ 57.572749][ T8909] ip_local_deliver_finish+0xf3/0x120 [ 57.578197][ T8909] ip_local_deliver+0x135/0x220 [ 57.583399][ T8909] ip_sublist_rcv_finish+0xf0/0x140 [ 57.588688][ T8909] ip_sublist_rcv+0x3f8/0x530 [ 57.593466][ T8909] ip_list_rcv+0x2f3/0x321 [ 57.598948][ T8909] __netif_receive_skb_list_core+0x368/0x5c0 [ 57.605219][ T8909] netif_receive_skb_list_internal+0x5c7/0x810 [ 57.611537][ T8909] gro_normal_list.part.0+0x37/0xa0 [ 57.616819][ T8909] gro_normal_one+0x14c/0x160 [ 57.621592][ T8909] napi_gro_receive+0x27d/0x2f0 [ 57.626432][ T8909] receive_buf+0x24c/0x3420 [ 57.630919][ T8909] virtnet_poll+0x343/0x790 [ 57.635409][ T8909] net_rx_action+0x3ad/0xac0 [ 57.640522][ T8909] __do_softirq+0x118/0x34a [ 57.645208][ T8909] irq_exit+0xb5/0xd0 [ 57.649377][ T8909] do_IRQ+0x7b/0x120 [ 57.653256][ T8909] ret_from_intr+0x0/0x21 [ 57.657583][ T8909] [ 57.659916][ T8909] read to 0xffff8881255b6f50 of 8 bytes by task 8909 on cpu 1: [ 57.667834][ T8909] ep_poll+0x5ad/0x910 [ 57.671907][ T8909] do_epoll_wait+0x15a/0x180 [ 57.676804][ T8909] __x64_sys_epoll_pwait+0xc6/0x170 [ 57.683659][ T8909] do_syscall_64+0xc7/0x3b0 [ 57.688390][ T8909] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.694385][ T8909] [ 57.696699][ T8909] Reported by Kernel Concurrency Sanitizer on: [ 57.702837][ T8909] CPU: 1 PID: 8909 Comm: syz-fuzzer Not tainted 5.7.0-rc1-syzkaller #0 [ 57.711501][ T8909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.721537][ T8909] ================================================================== [ 57.729676][ T8909] Kernel panic - not syncing: panic_on_warn set ... [ 57.736428][ T8909] CPU: 1 PID: 8909 Comm: syz-fuzzer Not tainted 5.7.0-rc1-syzkaller #0 [ 57.745370][ T8909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.755418][ T8909] Call Trace: [ 57.758704][ T8909] dump_stack+0x11d/0x187 [ 57.763072][ T8909] panic+0x210/0x640 [ 57.767407][ T8909] ? vprintk_func+0x89/0x13a [ 57.771989][ T8909] kcsan_report.cold+0xc/0x1a [ 57.776661][ T8909] kcsan_setup_watchpoint+0x3fb/0x440 [ 57.782513][ T8909] ep_poll+0x5ad/0x910 [ 57.786590][ T8909] ? wake_up_q+0x90/0x90 [ 57.790925][ T8909] do_epoll_wait+0x15a/0x180 [ 57.795515][ T8909] __x64_sys_epoll_pwait+0xc6/0x170 [ 57.800820][ T8909] do_syscall_64+0xc7/0x3b0 [ 57.805332][ T8909] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.811394][ T8909] RIP: 0033:0x469240 [ 57.815398][ T8909] Code: 0f 05 89 44 24 20 c3 cc cc cc 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 44 8b 54 24 1c 49 c7 c0 00 00 00 00 b8 19 01 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc cc cc cc cc cc cc cc 8b 7c 24 08 48 c7 [ 57.835965][ T8909] RSP: 002b:000000c0000757f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000119 [ 57.844380][ T8909] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 0000000000469240 [ 57.852352][ T8909] RDX: 0000000000000080 RSI: 000000c000075840 RDI: 0000000000000003 [ 57.861322][ T8909] RBP: 000000c000075e40 R08: 0000000000000000 R09: 0000000000000000 [ 57.869778][ T8909] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000003 [ 57.878603][ T8909] R13: 000000c0000ad080 R14: 000000532b558774 R15: 0000000000000000 [ 57.890351][ T8909] Kernel Offset: disabled [ 57.894871][ T8909] Rebooting in 86400 seconds..