Warning: Permanently added '10.128.0.232' (ECDSA) to the list of known hosts.
2020/06/15 20:17:10 fuzzer started
2020/06/15 20:17:10 dialing manager at 10.128.0.105:43759
2020/06/15 20:17:10 syscalls: 3085
2020/06/15 20:17:10 code coverage: enabled
2020/06/15 20:17:10 comparison tracing: enabled
2020/06/15 20:17:10 extra coverage: enabled
2020/06/15 20:17:10 setuid sandbox: enabled
2020/06/15 20:17:10 namespace sandbox: enabled
2020/06/15 20:17:10 Android sandbox: /sys/fs/selinux/policy does not exist
2020/06/15 20:17:10 fault injection: enabled
2020/06/15 20:17:10 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/06/15 20:17:10 net packet injection: enabled
2020/06/15 20:17:10 net device setup: enabled
2020/06/15 20:17:10 concurrency sanitizer: enabled
2020/06/15 20:17:10 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/06/15 20:17:10 USB emulation: enabled
2020/06/15 20:17:11 suppressing KCSAN reports in functions: 'page_counter_charge' 'ep_poll' 'run_timer_softirq' 'copy_process' 'file_update_time' '__ext4_new_inode' 
syzkaller login: [   51.418842][ T8904] ==================================================================
[   51.427190][ T8904] BUG: KCSAN: data-race in __send_signal / futex_wait_queue_me
[   51.434705][ T8904] 
[   51.437026][ T8904] write to 0xffff88812b2a0024 of 4 bytes by task 8894 on cpu 1:
[   51.444765][ T8904]  futex_wait_queue_me+0x17d/0x290
[   51.449855][ T8904]  futex_wait+0x17e/0x3a0
[   51.454162][ T8904]  do_futex+0xe2/0x15b0
[   51.458357][ T8904]  __x64_sys_futex+0x2dc/0x410
[   51.463103][ T8904]  do_syscall_64+0xc7/0x3b0
[   51.467608][ T8904]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   51.473500][ T8904] 
[   51.475811][ T8904] read to 0xffff88812b2a0024 of 4 bytes by task 8904 on cpu 0:
[   51.483339][ T8904]  __send_signal+0x468/0x8a0
[   51.487923][ T8904]  send_signal+0x211/0x2a0
[   51.492314][ T8904]  do_send_sig_info+0x59/0xc0
[   51.496969][ T8904]  do_send_specific+0xd8/0x100
[   51.502243][ T8904]  do_tkill+0xf8/0x130
[   51.506287][ T8904]  __x64_sys_tgkill+0x6d/0x90
[   51.510940][ T8904]  do_syscall_64+0xc7/0x3b0
[   51.515418][ T8904]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   51.521285][ T8904] 
[   51.523600][ T8904] Reported by Kernel Concurrency Sanitizer on:
[   51.529737][ T8904] CPU: 0 PID: 8904 Comm: syz-fuzzer Not tainted 5.7.0-rc1-syzkaller #0
[   51.537956][ T8904] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   51.548078][ T8904] ==================================================================
[   51.556262][ T8904] Kernel panic - not syncing: panic_on_warn set ...
[   51.562855][ T8904] CPU: 0 PID: 8904 Comm: syz-fuzzer Not tainted 5.7.0-rc1-syzkaller #0
[   51.571068][ T8904] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   51.581555][ T8904] Call Trace:
[   51.584830][ T8904]  dump_stack+0x11d/0x187
[   51.589227][ T8904]  panic+0x210/0x640
[   51.593102][ T8904]  ? vprintk_func+0x89/0x13a
[   51.597677][ T8904]  kcsan_report.cold+0xc/0x1a
[   51.602333][ T8904]  kcsan_setup_watchpoint+0x3fb/0x440
[   51.607699][ T8904]  __send_signal+0x468/0x8a0
[   51.612268][ T8904]  send_signal+0x211/0x2a0
[   51.616674][ T8904]  do_send_sig_info+0x59/0xc0
[   51.621381][ T8904]  do_send_specific+0xd8/0x100
[   51.626139][ T8904]  do_tkill+0xf8/0x130
[   51.630214][ T8904]  __x64_sys_tgkill+0x6d/0x90
[   51.634872][ T8904]  do_syscall_64+0xc7/0x3b0
[   51.639371][ T8904]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   51.645239][ T8904] RIP: 0033:0x468b26
[   51.649115][ T8904] Code: cc cc cc cc b8 27 00 00 00 0f 05 48 89 44 24 08 c3 cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 48 8b 54 24 18 b8 ea 00 00 00 0f 05 <c3> cc cc cc cc cc cc cc cc cc 8b 7c 24 08 48 8b 74 24 10 48 8b 54
[   51.668706][ T8904] RSP: 002b:000000c000097eb0 EFLAGS: 00000246 ORIG_RAX: 00000000000000ea
[   51.677105][ T8904] RAX: ffffffffffffffda RBX: 000000c000001500 RCX: 0000000000468b26
[   51.685054][ T8904] RDX: 0000000000000017 RSI: 00000000000022be RDI: 00000000000022bb
[   51.693001][ T8904] RBP: 000000c000097ed0 R08: 0000000000000000 R09: 0000000000000000
[   51.700950][ T8904] R10: 000000c000097ec0 R11: 0000000000000246 R12: 0000000000000011
[   51.708910][ T8904] R13: 0000000000000000 R14: 0000000000abbcbd R15: 0000000000000000
[   52.794053][ T8904] Shutting down cpus with NMI
[   52.800263][ T8904] Kernel Offset: disabled
[   52.804591][ T8904] Rebooting in 86400 seconds..