Warning: Permanently added '10.128.0.159' (ECDSA) to the list of known hosts. 2020/11/20 16:14:15 fuzzer started 2020/11/20 16:14:16 dialing manager at 10.128.0.105:37421 2020/11/20 16:14:51 syscalls: 3448 2020/11/20 16:14:51 code coverage: enabled 2020/11/20 16:14:51 comparison tracing: enabled 2020/11/20 16:14:51 extra coverage: enabled 2020/11/20 16:14:51 setuid sandbox: enabled 2020/11/20 16:14:51 namespace sandbox: enabled 2020/11/20 16:14:51 Android sandbox: /sys/fs/selinux/policy does not exist 2020/11/20 16:14:51 fault injection: enabled 2020/11/20 16:14:51 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/11/20 16:14:51 net packet injection: enabled 2020/11/20 16:14:51 net device setup: enabled 2020/11/20 16:14:51 concurrency sanitizer: enabled 2020/11/20 16:14:51 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/11/20 16:14:51 USB emulation: enabled 2020/11/20 16:14:51 hci packet injection: enabled 2020/11/20 16:14:51 wifi device emulation: enabled 2020/11/20 16:14:56 suppressing KCSAN reports in functions: 'ext4_free_inodes_count' 'ext4_mb_find_by_goal' 'alloc_pid' 'generic_write_end' 'blk_mq_rq_ctx_init' 'lru_add_drain_all' '__ext4_update_other_inode_time' 'do_sys_poll' 'blk_mq_dispatch_rq_list' 'ext4_mb_regular_allocator' 'expire_timers' '__delete_from_page_cache' 'filemap_map_pages' '__xa_clear_mark' 'snd_rawmidi_kernel_write1' 'wbt_done' '__find_get_block' 'blk_mq_sched_dispatch_requests' 'ext4_mb_good_group' 'find_get_pages_range_tag' '__add_to_page_cache_locked' 'shmem_symlink' 'audit_log_start' 'shmem_unlink' '__send_signal' 'ext4_ext_try_to_merge_right' 'do_signal_stop' 'wbt_issue' '__io_cqring_fill_event' 'lookup_fast' 'file_remove_privs' 'do_select' '__writeback_single_inode' '__mod_timer' 'ext4_mark_iloc_dirty' '__filemap_fdatawrite_range' 'kauditd_thread' 'ext4_writepages' 'do_nanosleep' '__delayacct_blkio_end' '_prb_read_valid' 'fifo_open' 'snd_rawmidi_poll' 'xas_find_marked' 'pcpu_alloc' 'exit_mm' 'xas_clear_mark' 'dd_has_work' '__ext4_new_inode' 'ext4_free_inode' 'n_tty_receive_buf_common' 'complete_signal' '__mark_inode_dirty' 'wg_packet_decrypt_worker' 'futex_wait_queue_me' syzkaller login: [ 74.228817][ T0] ================================================================== [ 74.237019][ T0] BUG: KCSAN: data-race in tick_nohz_next_event / tick_sched_timer [ 74.244895][ T0] [ 74.247223][ T0] write to 0xffffffff86fc19d0 of 4 bytes by interrupt on cpu 0: [ 74.254848][ T0] tick_sched_timer+0x1f5/0x210 [ 74.259692][ T0] __run_hrtimer+0x133/0x420 [ 74.264273][ T0] hrtimer_interrupt+0x36e/0xa10 [ 74.269202][ T0] __sysvec_apic_timer_interrupt+0x6f/0x200 [ 74.275088][ T0] sysvec_apic_timer_interrupt+0x6f/0x90 [ 74.280715][ T0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 74.286678][ T0] [ 74.289009][ T0] read to 0xffffffff86fc19d0 of 4 bytes by task 0 on cpu 1: [ 74.296277][ T0] tick_nohz_next_event+0x217/0x300 [ 74.301468][ T0] tick_nohz_get_sleep_length+0x121/0x270 [ 74.307181][ T0] menu_select+0x2fa/0xf40 [ 74.311593][ T0] cpuidle_select+0x3d/0x50 [ 74.316097][ T0] do_idle+0x15f/0x230 [ 74.320160][ T0] cpu_startup_entry+0x15/0x20 [ 74.324924][ T0] secondary_startup_64_no_verify+0xb0/0xbb [ 74.330795][ T0] [ 74.333113][ T0] Reported by Kernel Concurrency Sanitizer on: [ 74.339316][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.10.0-rc4-syzkaller #0 [ 74.347292][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.357782][ T0] ================================================================== [ 74.365835][ T0] Kernel panic - not syncing: panic_on_warn set ... [ 74.372524][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.10.0-rc4-syzkaller #0 [ 74.380669][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.390719][ T0] Call Trace: [ 74.394005][ T0] dump_stack+0x116/0x15d [ 74.398324][ T0] panic+0x1e7/0x5fa [ 74.402209][ T0] ? vprintk_emit+0x2f2/0x370 [ 74.406881][ T0] kcsan_report+0x67b/0x680 [ 74.411370][ T0] ? kcsan_setup_watchpoint+0x46a/0x4d0 [ 74.416897][ T0] ? tick_nohz_next_event+0x217/0x300 [ 74.422259][ T0] ? tick_nohz_get_sleep_length+0x121/0x270 [ 74.428136][ T0] ? menu_select+0x2fa/0xf40 [ 74.432757][ T0] ? cpuidle_select+0x3d/0x50 [ 74.437416][ T0] ? do_idle+0x15f/0x230 [ 74.441766][ T0] ? cpu_startup_entry+0x15/0x20 [ 74.446692][ T0] ? secondary_startup_64_no_verify+0xb0/0xbb [ 74.452763][ T0] ? ktime_get+0x1b0/0x1e0 [ 74.457172][ T0] kcsan_setup_watchpoint+0x46a/0x4d0 [ 74.462570][ T0] tick_nohz_next_event+0x217/0x300 [ 74.467763][ T0] tick_nohz_get_sleep_length+0x121/0x270 [ 74.473455][ T0] menu_select+0x2fa/0xf40 [ 74.477855][ T0] ? _raw_spin_unlock_irq+0x22/0x40 [ 74.483039][ T0] ? finish_task_switch+0x81/0x280 [ 74.488129][ T0] cpuidle_select+0x3d/0x50 [ 74.492612][ T0] do_idle+0x15f/0x230 [ 74.496671][ T0] cpu_startup_entry+0x15/0x20 [ 74.501425][ T0] secondary_startup_64_no_verify+0xb0/0xbb [ 74.507855][ T0] Kernel Offset: disabled [ 74.512164][ T0] Rebooting in 86400 seconds..