Warning: Permanently added '10.128.0.24' (ECDSA) to the list of known hosts. 2021/02/08 23:48:25 fuzzer started 2021/02/08 23:48:25 dialing manager at 10.128.0.163:40523 2021/02/08 23:48:25 syscalls: 3470 2021/02/08 23:48:25 code coverage: enabled 2021/02/08 23:48:25 comparison tracing: enabled 2021/02/08 23:48:25 extra coverage: enabled 2021/02/08 23:48:25 setuid sandbox: enabled 2021/02/08 23:48:25 namespace sandbox: enabled 2021/02/08 23:48:25 Android sandbox: /sys/fs/selinux/policy does not exist 2021/02/08 23:48:25 fault injection: enabled 2021/02/08 23:48:25 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/02/08 23:48:25 net packet injection: enabled 2021/02/08 23:48:25 net device setup: enabled 2021/02/08 23:48:25 concurrency sanitizer: enabled 2021/02/08 23:48:25 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/02/08 23:48:25 USB emulation: enabled 2021/02/08 23:48:25 hci packet injection: enabled 2021/02/08 23:48:25 wifi device emulation: enabled 2021/02/08 23:48:28 suppressing KCSAN reports in functions: 'jbd2_journal_commit_transaction' 'blk_mq_sched_dispatch_requests' 'dput' 'ext4_mb_find_by_goal' '__ext4_new_inode' '__delete_from_page_cache' 'exit_mm' 'dd_has_work' '_prb_read_valid' 'do_select' '__jbd2_journal_file_buffer' 'blk_mq_rq_ctx_init' 'jbd2_journal_dirty_metadata' 'find_get_pages_range_tag' 'ext4_writepages' 'xas_find_marked' 'ext4_mb_good_group' 'filemap_map_pages' 'do_sys_poll' '__filemap_fdatawrite_range' 'ext4_free_inode' 'alloc_pid' 'do_signal_stop' 'blk_mq_dispatch_rq_list' 'generic_file_buffered_read' '__add_to_page_cache_locked' 'mm_update_next_owner' 'ext4_fc_commit' 'wbt_issue' '__xa_clear_mark' 'pcpu_alloc' 'ext4_free_inodes_count' 'ext4_mark_iloc_dirty' 'n_tty_receive_buf_common' 'n_tty_receive_char_special' 'futex_wait_queue_me' 'do_nanosleep' 'generic_write_end' 'step_into' 'atime_needs_update' 'expire_timers' 'ext4_mb_regular_allocator' 'isolate_migratepages_block' 'blk_mq_request_bypass_insert' 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(executing program) 2021/02/08 23:48:44 fetching corpus: 12427, signal 302383/480698 (executing program) 2021/02/08 23:48:44 fetching corpus: 12477, signal 302801/480698 (executing program) 2021/02/08 23:48:44 fetching corpus: 12527, signal 303200/480698 (executing program) 2021/02/08 23:48:44 fetching corpus: 12577, signal 303539/480698 (executing program) 2021/02/08 23:48:44 fetching corpus: 12627, signal 303909/480698 (executing program) 2021/02/08 23:48:44 fetching corpus: 12677, signal 304440/480698 (executing program) 2021/02/08 23:48:44 fetching corpus: 12727, signal 305118/480701 (executing program) [ 48.174912][ T0] ================================================================== [ 48.183004][ T0] BUG: KCSAN: data-race in tick_nohz_next_event / tick_sched_timer [ 48.190895][ T0] [ 48.193219][ T0] write to 0xffffffff879c1120 of 4 bytes by interrupt on cpu 0: [ 48.200844][ T0] tick_sched_timer+0x1f5/0x210 [ 48.205691][ T0] __run_hrtimer+0x163/0x460 [ 48.210273][ T0] hrtimer_interrupt+0x36e/0xa30 [ 48.215205][ T0] __sysvec_apic_timer_interrupt+0x6f/0x200 2021/02/08 23:48:44 fetching corpus: 12777, signal 305567/480702 (executing program) 2021/02/08 23:48:44 fetching corpus: 12827, signal 305880/480722 (executing program) [ 48.221092][ T0] asm_call_irq_on_stack+0xf/0x20 [ 48.226101][ T0] sysvec_apic_timer_interrupt+0x52/0x90 [ 48.231719][ T0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 48.237692][ T0] acpi_idle_enter+0x25b/0x2e0 [ 48.242443][ T0] cpuidle_enter_state+0x2b6/0x7c0 [ 48.247562][ T0] cpuidle_enter+0x3c/0x60 [ 48.251973][ T0] do_idle+0x193/0x230 [ 48.256029][ T0] cpu_startup_entry+0x15/0x20 [ 48.260785][ T0] rest_init+0xd7/0xe0 [ 48.264861][ T0] arch_call_rest_init+0xa/0xb [ 48.269627][ T0] start_kernel+0x5a1/0x626 2021/02/08 23:48:44 fetching corpus: 12877, signal 306317/480722 (executing program) [ 48.274129][ T0] secondary_startup_64_no_verify+0xb0/0xbb [ 48.280021][ T0] [ 48.282349][ T0] read to 0xffffffff879c1120 of 4 bytes by task 0 on cpu 1: [ 48.289618][ T0] tick_nohz_next_event+0x217/0x300 [ 48.294811][ T0] tick_nohz_get_sleep_length+0x121/0x280 [ 48.300535][ T0] menu_select+0x2f6/0x1000 [ 48.305022][ T0] cpuidle_select+0x3d/0x50 [ 48.309509][ T0] do_idle+0x15f/0x230 [ 48.313564][ T0] cpu_startup_entry+0x15/0x20 [ 48.318306][ T0] secondary_startup_64_no_verify+0xb0/0xbb 2021/02/08 23:48:44 fetching corpus: 12927, signal 306659/480722 (executing program) [ 48.324192][ T0] [ 48.326510][ T0] Reported by Kernel Concurrency Sanitizer on: [ 48.332641][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.11.0-rc7-syzkaller #0 [ 48.340608][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.350650][ T0] ================================================================== [ 48.358691][ T0] Kernel panic - not syncing: panic_on_warn set ... [ 48.365260][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.11.0-rc7-syzkaller #0 [ 48.373248][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.383287][ T0] Call Trace: [ 48.386560][ T0] dump_stack+0x116/0x15d [ 48.390888][ T0] panic+0x1e7/0x5fa [ 48.394769][ T0] ? vprintk_emit+0x2e2/0x360 [ 48.399530][ T0] kcsan_report+0x67b/0x680 [ 48.404024][ T0] ? kcsan_setup_watchpoint+0x472/0x4d0 [ 48.409564][ T0] ? tick_nohz_next_event+0x217/0x300 [ 48.414915][ T0] ? tick_nohz_get_sleep_length+0x121/0x280 [ 48.420789][ T0] ? menu_select+0x2f6/0x1000 [ 48.425456][ T0] ? cpuidle_select+0x3d/0x50 [ 48.430128][ T0] ? do_idle+0x15f/0x230 [ 48.434443][ T0] ? cpu_startup_entry+0x15/0x20 [ 48.439827][ T0] ? secondary_startup_64_no_verify+0xb0/0xbb [ 48.445902][ T0] ? match_strlcpy+0x70/0x90 [ 48.450502][ T0] ? ktime_get+0x1b0/0x1e0 [ 48.454996][ T0] kcsan_setup_watchpoint+0x472/0x4d0 [ 48.460353][ T0] tick_nohz_next_event+0x217/0x300 [ 48.465554][ T0] tick_nohz_get_sleep_length+0x121/0x280 [ 48.471274][ T0] menu_select+0x2f6/0x1000 [ 48.475770][ T0] ? _raw_spin_unlock_irq+0x22/0x40 [ 48.480966][ T0] cpuidle_select+0x3d/0x50 [ 48.485464][ T0] do_idle+0x15f/0x230 [ 48.489516][ T0] cpu_startup_entry+0x15/0x20 [ 48.494268][ T0] secondary_startup_64_no_verify+0xb0/0xbb [ 48.500928][ T0] Kernel Offset: disabled [ 48.505238][ T0] Rebooting in 86400 seconds..