Warning: Permanently added '10.128.0.116' (ECDSA) to the list of known hosts. 2021/01/16 20:35:42 fuzzer started 2021/01/16 20:35:42 dialing manager at 10.128.0.105:44581 2021/01/16 20:35:44 syscalls: 3465 2021/01/16 20:35:44 code coverage: enabled 2021/01/16 20:35:44 comparison tracing: enabled 2021/01/16 20:35:44 extra coverage: enabled 2021/01/16 20:35:44 setuid sandbox: enabled 2021/01/16 20:35:44 namespace sandbox: enabled 2021/01/16 20:35:44 Android sandbox: /sys/fs/selinux/policy does not exist 2021/01/16 20:35:44 fault injection: enabled 2021/01/16 20:35:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/01/16 20:35:44 net packet injection: enabled 2021/01/16 20:35:44 net device setup: enabled 2021/01/16 20:35:44 concurrency sanitizer: enabled 2021/01/16 20:35:44 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/01/16 20:35:44 USB emulation: enabled 2021/01/16 20:35:44 hci packet injection: enabled 2021/01/16 20:35:44 wifi device emulation: enabled 2021/01/16 20:35:44 fetching corpus: 0, signal 0/0 (executing program) 2021/01/16 20:35:44 fetching corpus: 0, signal 0/0 (executing program) syzkaller login: [ 31.687131][ T8436] ================================================================== [ 31.695287][ T8436] BUG: KCSAN: data-race in complete_signal / futex_wait_queue_me [ 31.703095][ T8436] [ 31.705397][ T8436] read-write to 0xffff888100e0e02c of 4 bytes by task 8425 on cpu 1: [ 31.713432][ T8436] futex_wait_queue_me+0x17e/0x240 [ 31.718517][ T8436] futex_wait+0x145/0x3d0 [ 31.722825][ T8436] do_futex+0x105a/0x20c0 [ 31.727170][ T8436] __se_sys_futex+0x2a8/0x390 [ 31.731837][ T8436] __x64_sys_futex+0x74/0x80 [ 31.736403][ T8436] do_syscall_64+0x39/0x80 [ 31.740796][ T8436] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 31.746682][ T8436] [ 31.748983][ T8436] read to 0xffff888100e0e02c of 4 bytes by task 8436 on cpu 0: [ 31.756494][ T8436] complete_signal+0x7b/0x5f0 [ 31.761155][ T8436] __send_signal+0x666/0x780 [ 31.765719][ T8436] send_signal+0x39f/0x3d0 [ 31.770124][ T8436] do_send_sig_info+0x9b/0xe0 [ 31.774775][ T8436] do_send_specific+0xc7/0x100 [ 31.779511][ T8436] __x64_sys_tgkill+0x108/0x140 [ 31.784336][ T8436] do_syscall_64+0x39/0x80 [ 31.788729][ T8436] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 31.794596][ T8436] [ 31.796893][ T8436] Reported by Kernel Concurrency Sanitizer on: [ 31.803008][ T8436] CPU: 0 PID: 8436 Comm: syz-fuzzer Not tainted 5.11.0-rc3-syzkaller #0 [ 31.811320][ T8436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.821349][ T8436] ================================================================== [ 31.829378][ T8436] Kernel panic - not syncing: panic_on_warn set ... [ 31.835953][ T8436] CPU: 0 PID: 8436 Comm: syz-fuzzer Not tainted 5.11.0-rc3-syzkaller #0 [ 31.844251][ T8436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.854295][ T8436] Call Trace: [ 31.857550][ T8436] dump_stack+0x116/0x15d [ 31.861858][ T8436] panic+0x1e7/0x5fa [ 31.865729][ T8436] ? vprintk_emit+0x2e2/0x360 [ 31.870382][ T8436] kcsan_report+0x67b/0x680 [ 31.874862][ T8436] ? kcsan_setup_watchpoint+0x47b/0x4e0 [ 31.880416][ T8436] ? complete_signal+0x7b/0x5f0 [ 31.885242][ T8436] ? __send_signal+0x666/0x780 [ 31.889998][ T8436] ? send_signal+0x39f/0x3d0 [ 31.894565][ T8436] ? do_send_sig_info+0x9b/0xe0 [ 31.899402][ T8436] ? do_send_specific+0xc7/0x100 [ 31.904324][ T8436] ? __x64_sys_tgkill+0x108/0x140 [ 31.909321][ T8436] ? do_syscall_64+0x39/0x80 [ 31.913887][ T8436] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 31.919931][ T8436] ? __dequeue_signal+0x354/0x370 [ 31.924931][ T8436] ? map_vdso_once+0x76/0x120 [ 31.929583][ T8436] kcsan_setup_watchpoint+0x47b/0x4e0 [ 31.934928][ T8436] ? kmem_cache_alloc+0x18e/0x2e0 [ 31.939926][ T8436] complete_signal+0x7b/0x5f0 [ 31.944593][ T8436] __send_signal+0x666/0x780 [ 31.949156][ T8436] send_signal+0x39f/0x3d0 [ 31.953547][ T8436] do_send_sig_info+0x9b/0xe0 [ 31.958200][ T8436] do_send_specific+0xc7/0x100 [ 31.962936][ T8436] __x64_sys_tgkill+0x108/0x140 [ 31.967758][ T8436] do_syscall_64+0x39/0x80 [ 31.972151][ T8436] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 31.978034][ T8436] RIP: 0033:0x466066 [ 31.981901][ T8436] 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 cc cc cc cc cc cc cc cc cc 8b 7c 24 08 48 8b 74 24 10 48 8b 54 [ 32.001498][ T8436] RSP: 002b:000000c0002a3eb0 EFLAGS: 00000246 ORIG_RAX: 00000000000000ea [ 32.009901][ T8436] RAX: ffffffffffffffda RBX: 000000c000000180 RCX: 0000000000466066 [ 32.017858][ T8436] RDX: 0000000000000017 RSI: 00000000000020e9 RDI: 00000000000020e5 [ 32.025804][ T8436] RBP: 000000c0002a3ed0 R08: 0000000000000000 R09: 0000000000000010 [ 32.033751][ T8436] R10: 00007ffee1d460b8 R11: 0000000000000246 R12: 00000000000000ff [ 32.041871][ T8436] R13: 0000000000ef49c0 R14: 0000000000000000 R15: 0000000000000000 [ 33.125257][ T8436] Shutting down cpus with NMI [ 33.130504][ T8436] Kernel Offset: disabled [ 33.134810][ T8436] Rebooting in 86400 seconds..