Warning: Permanently added '10.128.0.211' (ECDSA) to the list of known hosts. 2019/11/03 09:49:25 fuzzer started 2019/11/03 09:49:27 dialing manager at 10.128.0.105:43165 2019/11/03 09:49:28 syscalls: 2554 2019/11/03 09:49:28 code coverage: enabled 2019/11/03 09:49:28 comparison tracing: enabled 2019/11/03 09:49:28 extra coverage: extra coverage is not supported by the kernel 2019/11/03 09:49:28 setuid sandbox: enabled 2019/11/03 09:49:28 namespace sandbox: enabled 2019/11/03 09:49:28 Android sandbox: /sys/fs/selinux/policy does not exist 2019/11/03 09:49:28 fault injection: enabled 2019/11/03 09:49:28 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/11/03 09:49:28 net packet injection: enabled 2019/11/03 09:49:28 net device setup: enabled 2019/11/03 09:49:28 concurrency sanitizer: enabled 2019/11/03 09:49:36 adding functions to KCSAN blacklist: 'run_timer_softirq' '__nf_ct_refresh_acct' 'ext4_has_free_clusters' 'ext4_free_inode' '__tcp_select_window' 'tomoyo_supervisor' 'taskstats_exit' 'vm_area_dup' 'task_dump_owner' 'ep_poll' '__splice_from_pipe' 'do_nanosleep' 'ktime_get_real_seconds' 'pipe_poll' 'xas_find_marked' 'tcp_add_backlog' 'tcp_poll' 'generic_permission' 'find_next_bit' 'mod_timer' 'pid_update_inode' '__hrtimer_run_queues' 'echo_char' 'add_timer' 'rcu_gp_fqs_check_wake' 'tick_sched_do_timer' '__ext4_new_inode' 'update_defense_level' 'install_new_memslots' 'tick_do_update_jiffies64' '__nf_conntrack_find_get' 'snd_seq_check_queue' 'generic_write_end' '__dentry_kill' 'rcu_gp_fqs_loop' syzkaller login: [ 60.442826][ T7290] ================================================================== [ 60.451243][ T7290] BUG: KCSAN: data-race in ktime_get_seconds / timekeeping_advance [ 60.459521][ T7290] [ 60.461863][ T7290] write to 0xffffffff86040b08 of 280 bytes by interrupt on cpu 1: [ 60.470128][ T7290] timekeeping_advance+0x893/0xd80 [ 60.475449][ T7290] update_wall_time+0x19/0x20 [ 60.480358][ T7290] tick_do_update_jiffies64+0x1ae/0x260 [ 60.486072][ T7290] tick_sched_do_timer+0xd4/0xe0 [ 60.491340][ T7290] tick_sched_timer+0x43/0xe0 [ 60.496608][ T7290] __hrtimer_run_queues+0x288/0x600 [ 60.502622][ T7290] hrtimer_interrupt+0x22a/0x480 [ 60.507774][ T7290] smp_apic_timer_interrupt+0xdc/0x280 [ 60.513444][ T7290] apic_timer_interrupt+0xf/0x20 [ 60.518767][ T7290] __sanitizer_cov_trace_pc+0x0/0x50 [ 60.524228][ T7290] nf_hook_slow+0x83/0x160 [ 60.528719][ T7290] ip_local_deliver+0x1e5/0x210 [ 60.533640][ T7290] ip_rcv_finish+0x121/0x160 [ 60.538500][ T7290] ip_rcv+0x18f/0x1a0 [ 60.542505][ T7290] [ 60.544951][ T7290] read to 0xffffffff86040b80 of 8 bytes by task 7290 on cpu 0: [ 60.553351][ T7290] ktime_get_seconds+0x45/0x70 [ 60.558280][ T7290] tcp_rcv_established+0xeeb/0xf50 [ 60.563633][ T7290] tcp_v4_do_rcv+0x381/0x4e0 [ 60.568451][ T7290] __release_sock+0x135/0x1e0 [ 60.573586][ T7290] release_sock+0x61/0x160 [ 60.578095][ T7290] tcp_recvmsg+0x63b/0x1a30 [ 60.583179][ T7290] inet_recvmsg+0xbb/0x250 [ 60.587949][ T7290] sock_recvmsg+0x92/0xb0 [ 60.592785][ T7290] sock_read_iter+0x15f/0x1e0 [ 60.597805][ T7290] new_sync_read+0x389/0x4f0 [ 60.602733][ T7290] __vfs_read+0xb1/0xc0 [ 60.607026][ T7290] vfs_read+0x143/0x2c0 [ 60.611442][ T7290] ksys_read+0xd5/0x1b0 [ 60.615619][ T7290] [ 60.617953][ T7290] Reported by Kernel Concurrency Sanitizer on: [ 60.624337][ T7290] CPU: 0 PID: 7290 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 60.631785][ T7290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.642365][ T7290] ================================================================== [ 60.650412][ T7290] Kernel panic - not syncing: panic_on_warn set ... [ 60.657072][ T7290] CPU: 0 PID: 7290 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 60.664597][ T7290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.675203][ T7290] Call Trace: [ 60.678496][ T7290] dump_stack+0xf5/0x159 [ 60.682821][ T7290] panic+0x210/0x640 [ 60.686710][ T7290] ? sock_read_iter+0x15f/0x1e0 [ 60.691710][ T7290] ? vprintk_func+0x8d/0x140 [ 60.696317][ T7290] kcsan_report.cold+0xc/0x10 [ 60.701081][ T7290] __kcsan_setup_watchpoint+0x32e/0x4a0 [ 60.706709][ T7290] __tsan_read8+0x2c/0x30 [ 60.711640][ T7290] ktime_get_seconds+0x45/0x70 [ 60.716657][ T7290] tcp_rcv_established+0xeeb/0xf50 [ 60.721767][ T7290] ? ipv4_dst_check+0xc6/0xf0 [ 60.726533][ T7290] tcp_v4_do_rcv+0x381/0x4e0 [ 60.731122][ T7290] __release_sock+0x135/0x1e0 [ 60.735963][ T7290] release_sock+0x61/0x160 [ 60.740387][ T7290] tcp_recvmsg+0x63b/0x1a30 [ 60.745036][ T7290] inet_recvmsg+0xbb/0x250 [ 60.749532][ T7290] ? __tsan_read8+0x2c/0x30 [ 60.754167][ T7290] ? inet_sendpage+0x100/0x100 [ 60.759268][ T7290] sock_recvmsg+0x92/0xb0 [ 60.763780][ T7290] sock_read_iter+0x15f/0x1e0 [ 60.768582][ T7290] new_sync_read+0x389/0x4f0 [ 60.773393][ T7290] __vfs_read+0xb1/0xc0 [ 60.777678][ T7290] vfs_read+0x143/0x2c0 [ 60.782089][ T7290] ksys_read+0xd5/0x1b0 [ 60.786435][ T7290] __x64_sys_read+0x4c/0x60 [ 60.791024][ T7290] do_syscall_64+0xcc/0x370 [ 60.795722][ T7290] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.801602][ T7290] RIP: 0033:0x47c530 [ 60.805632][ T7290] Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 60.826681][ T7290] RSP: 002b:000000c4204ef7d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 60.835463][ T7290] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530 [ 60.843655][ T7290] RDX: 0000000000001000 RSI: 000000c420362000 RDI: 0000000000000003 [ 60.852078][ T7290] RBP: 000000c4204ef830 R08: 0000000000000000 R09: 0000000000000000 [ 60.860049][ T7290] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000008 [ 60.868221][ T7290] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff [ 60.879051][ T7290] Kernel Offset: disabled [ 60.883876][ T7290] Rebooting in 86400 seconds..