Warning: Permanently added '10.128.0.15' (ECDSA) to the list of known hosts. 2019/11/12 12:50:37 fuzzer started 2019/11/12 12:50:39 dialing manager at 10.128.0.105:45453 2019/11/12 12:50:57 syscalls: 2566 2019/11/12 12:50:57 code coverage: enabled 2019/11/12 12:50:57 comparison tracing: enabled 2019/11/12 12:50:57 extra coverage: extra coverage is not supported by the kernel 2019/11/12 12:50:57 setuid sandbox: enabled 2019/11/12 12:50:57 namespace sandbox: enabled 2019/11/12 12:50:57 Android sandbox: /sys/fs/selinux/policy does not exist 2019/11/12 12:50:57 fault injection: enabled 2019/11/12 12:50:57 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/11/12 12:50:57 net packet injection: enabled 2019/11/12 12:50:57 net device setup: enabled 2019/11/12 12:50:57 concurrency sanitizer: enabled 2019/11/12 12:50:57 devlink PCI setup: PCI device 0000:00:10.0 is not available syzkaller login: [ 84.760096][ T7625] KCSAN: could not find function: 'poll_schedule_timeout' 2019/11/12 12:51:08 adding functions to KCSAN blacklist: 'vfs_fsync_range' 'find_get_pages_range_tag' 'kauditd_thread' 'generic_write_end' 'ep_poll' 'vm_area_dup' 'blk_mq_free_request' 'tick_do_update_jiffies64' 'process_srcu' 'do_syslog' 'audit_log_start' 'do_exit' '__d_lookup_done' 'timer_clear_idle' 'snd_seq_check_queue' '__mark_inode_dirty' 'tomoyo_supervisor' 'pipe_poll' '__ext4_new_inode' 'do_nanosleep' 'icmp_global_allow' 'p9_poll_workfn' 'futex_wait_queue_me' 'kvm_mmu_notifier_invalidate_range_end' 'ext4_mark_iloc_dirty' 'lruvec_lru_size' 'pipe_wait' 'mm_update_next_owner' 'n_tty_receive_buf_common' 'generic_file_read_iter' 'pid_update_inode' '__add_to_page_cache_locked' 'xas_find_marked' 'tcp_add_backlog' 'ksys_read' 'atime_needs_update' 'run_timer_softirq' 'ext4_free_inode' '__wb_update_bandwidth' 'tick_sched_do_timer' 'ext4_has_free_clusters' 'p9_client_cb' 'virtqueue_disable_cb' 'dd_has_work' 'poll_schedule_timeout' 'do_signal_stop' 'sit_tunnel_xmit' 'find_next_bit' 'taskstats_exit' 'xas_clear_mark' 'blk_mq_sched_dispatch_requests' 'tick_nohz_idle_stop_tick' 'rq_depth_scale_up' '__hrtimer_run_queues' 'blk_mq_dispatch_rq_list' 'echo_char' 'wbt_issue' 'ext4_free_inodes_count' 'rcu_gp_fqs_check_wake' '__find_get_block' 'mod_timer' 'blk_mq_get_request' 'copy_process' 'add_timer' 'generic_fillattr' 'ext4_nonda_switch' 'kernfs_refresh_inode' 'list_lru_count_one' 'blk_mq_run_hw_queue' [ 99.845267][ T7622] ================================================================== [ 99.853427][ T7622] BUG: KCSAN: data-race in __acct_update_integrals / mmap_region [ 99.861390][ T7622] [ 99.863741][ T7622] read to 0xffff888125d79300 of 8 bytes by interrupt on cpu 0: [ 99.871463][ T7622] __acct_update_integrals+0x1b1/0x1e0 [ 99.877491][ T7622] acct_account_cputime+0x4e/0x60 [ 99.882597][ T7622] account_user_time+0xb2/0xc0 [ 99.887499][ T7622] irqtime_account_process_tick.isra.0+0x14e/0x1b0 [ 99.894224][ T7622] account_process_tick+0x14e/0x190 [ 99.899491][ T7622] update_process_times+0x29/0x80 [ 99.904526][ T7622] tick_sched_handle+0x75/0x100 [ 99.909383][ T7622] tick_sched_timer+0x58/0xe0 [ 99.914059][ T7622] __hrtimer_run_queues+0x274/0x5f0 [ 99.919277][ T7622] hrtimer_interrupt+0x22a/0x480 [ 99.924298][ T7622] smp_apic_timer_interrupt+0xdc/0x280 [ 99.929759][ T7622] apic_timer_interrupt+0xf/0x20 [ 99.934705][ T7622] [ 99.937053][ T7622] write to 0xffff888125d79300 of 8 bytes by task 7622 on cpu 1: [ 99.944774][ T7622] mmap_region+0x328/0xd50 [ 99.949190][ T7622] do_mmap+0x6d4/0xba0 [ 99.953279][ T7622] vm_mmap_pgoff+0x12d/0x190 [ 99.958145][ T7622] ksys_mmap_pgoff+0x99/0x420 [ 99.962999][ T7622] __x64_sys_mmap+0x91/0xc0 [ 99.967971][ T7622] do_syscall_64+0xcc/0x370 [ 99.972799][ T7622] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 99.979069][ T7622] [ 99.981388][ T7622] Reported by Kernel Concurrency Sanitizer on: [ 99.987822][ T7622] CPU: 1 PID: 7622 Comm: syz-fuzzer Not tainted 5.4.0-rc7+ #0 [ 99.995373][ T7622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.005909][ T7622] ================================================================== [ 100.013982][ T7622] Kernel panic - not syncing: panic_on_warn set ... [ 100.020581][ T7622] CPU: 1 PID: 7622 Comm: syz-fuzzer Not tainted 5.4.0-rc7+ #0 [ 100.028330][ T7622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.038573][ T7622] Call Trace: [ 100.042019][ T7622] dump_stack+0x11d/0x181 [ 100.047142][ T7622] panic+0x210/0x640 [ 100.051062][ T7622] ? vprintk_func+0x8d/0x140 [ 100.055929][ T7622] kcsan_report.cold+0xc/0x1a [ 100.060684][ T7622] kcsan_setup_watchpoint+0x3fe/0x460 [ 100.066078][ T7622] __tsan_unaligned_write8+0xc4/0x100 [ 100.071463][ T7622] mmap_region+0x328/0xd50 [ 100.076041][ T7622] do_mmap+0x6d4/0xba0 [ 100.080129][ T7622] vm_mmap_pgoff+0x12d/0x190 [ 100.085885][ T7622] ksys_mmap_pgoff+0x99/0x420 [ 100.090702][ T7622] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.097102][ T7622] __x64_sys_mmap+0x91/0xc0 [ 100.101779][ T7622] do_syscall_64+0xcc/0x370 [ 100.106304][ T7622] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 100.113682][ T7622] RIP: 0033:0x45b014 [ 100.117679][ T7622] Code: 03 cc cc cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 44 8b 54 24 1c 44 8b 44 24 20 44 8b 4c 24 24 b8 09 00 00 00 0f 05 <48> 3d 01 f0 ff ff 76 15 48 f7 d0 48 ff c0 48 c7 44 24 28 00 00 00 [ 100.137667][ T7622] RSP: 002b:000000c42014bbc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 100.146298][ T7622] RAX: ffffffffffffffda RBX: 0000000000000022 RCX: 000000000045b014 [ 100.154457][ T7622] RDX: 0000000000000003 RSI: 0000000000008000 RDI: 000000c41feb6000 [ 100.162891][ T7622] RBP: 000000c42014bc38 R08: 00000000ffffffff R09: 0000000000000000 [ 100.172482][ T7622] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000000000 [ 100.181019][ T7622] R13: 0000000000000004 R14: 0000000000000004 R15: 0000000000000004 [ 100.190648][ T7622] Kernel Offset: disabled [ 100.195037][ T7622] Rebooting in 86400 seconds..