Warning: Permanently added '10.128.10.49' (ECDSA) to the list of known hosts. 2020/05/31 09:43:33 fuzzer started 2020/05/31 09:43:33 dialing manager at 10.128.0.105:33205 2020/05/31 09:43:43 syscalls: 3055 2020/05/31 09:43:43 code coverage: enabled 2020/05/31 09:43:43 comparison tracing: enabled 2020/05/31 09:43:43 extra coverage: enabled 2020/05/31 09:43:43 setuid sandbox: enabled 2020/05/31 09:43:43 namespace sandbox: enabled 2020/05/31 09:43:43 Android sandbox: /sys/fs/selinux/policy does not exist 2020/05/31 09:43:43 fault injection: enabled 2020/05/31 09:43:43 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/05/31 09:43:43 net packet injection: enabled 2020/05/31 09:43:43 net device setup: enabled 2020/05/31 09:43:43 concurrency sanitizer: enabled 2020/05/31 09:43:43 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/05/31 09:43:43 USB emulation: enabled syzkaller login: [ 61.928119][ T8912] KCSAN: could not find function: '_find_next_bit' 2020/05/31 09:43:46 adding functions to KCSAN blacklist: 'generic_write_end' 'blk_mq_sched_dispatch_requests' '__mark_inode_dirty' 'ep_poll' 'futex_wait_queue_me' 'do_syslog' 'kauditd_thread' '_find_next_bit' 'add_timer' 'copy_process' 'do_signal_stop' '__ext4_new_inode' 'ext4_free_inodes_count' 'snd_rawmidi_kernel_write1' 'blk_mq_dispatch_rq_list' 'page_counter_charge' 'decrypt_packet' 'iput' 'fasync_remove_entry' 'blk_mq_get_request' 'do_nanosleep' 'ext4_da_write_end' 'mod_timer' 'find_get_pages_range_tag' [ 119.220088][ T0] ================================================================== [ 119.228245][ T0] BUG: KCSAN: data-race in tick_nohz_next_event / tick_sched_do_timer [ 119.236387][ T0] [ 119.238709][ T0] write to 0xffffffff8764e210 of 4 bytes by interrupt on cpu 1: [ 119.246329][ T0] tick_sched_do_timer+0xb4/0xd0 [ 119.251243][ T0] tick_sched_timer+0x3f/0xd0 [ 119.255894][ T0] __hrtimer_run_queues+0x271/0x600 [ 119.261063][ T0] hrtimer_interrupt+0x226/0x490 [ 119.265977][ T0] smp_apic_timer_interrupt+0xd8/0x270 [ 119.271520][ T0] apic_timer_interrupt+0xf/0x20 [ 119.276464][ T0] [ 119.278770][ T0] read to 0xffffffff8764e210 of 4 bytes by task 0 on cpu 0: [ 119.286030][ T0] tick_nohz_next_event+0x181/0x340 [ 119.291345][ T0] tick_nohz_idle_stop_tick+0x3b9/0x680 [ 119.296897][ T0] do_idle+0x1ad/0x290 [ 119.300941][ T0] cpu_startup_entry+0x14/0x20 [ 119.305676][ T0] rest_init+0xe4/0xeb [ 119.309728][ T0] arch_call_rest_init+0x13/0x2b [ 119.314787][ T0] start_kernel+0x7fe/0x823 [ 119.319268][ T0] secondary_startup_64+0xa4/0xb0 [ 119.324270][ T0] [ 119.326566][ T0] Reported by Kernel Concurrency Sanitizer on: [ 119.332695][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0 [ 119.340553][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.350591][ T0] ================================================================== [ 119.358650][ T0] Kernel panic - not syncing: panic_on_warn set ... [ 119.365210][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0 [ 119.373081][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.383121][ T0] Call Trace: [ 119.386386][ T0] dump_stack+0x11d/0x187 [ 119.390695][ T0] panic+0x210/0x640 [ 119.394567][ T0] ? vprintk_func+0x89/0x13a [ 119.399151][ T0] kcsan_report.cold+0xc/0x1a [ 119.403980][ T0] kcsan_setup_watchpoint+0x3fb/0x440 [ 119.409329][ T0] tick_nohz_next_event+0x181/0x340 [ 119.414508][ T0] tick_nohz_idle_stop_tick+0x3b9/0x680 [ 119.420028][ T0] ? ktime_get+0x1c9/0x210 [ 119.424516][ T0] ? debug_smp_processor_id+0x3f/0x129 [ 119.430044][ T0] do_idle+0x1ad/0x290 [ 119.434090][ T0] ? debug_smp_processor_id+0x3f/0x129 [ 119.439546][ T0] cpu_startup_entry+0x14/0x20 [ 119.444301][ T0] rest_init+0xe4/0xeb [ 119.448346][ T0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 119.454562][ T0] arch_call_rest_init+0x13/0x2b [ 119.459475][ T0] start_kernel+0x7fe/0x823 [ 119.463955][ T0] secondary_startup_64+0xa4/0xb0 [ 119.470357][ T0] Kernel Offset: disabled [ 119.474687][ T0] Rebooting in 86400 seconds..