Warning: Permanently added '10.128.10.61' (ECDSA) to the list of known hosts. 2019/10/14 05:31:19 fuzzer started 2019/10/14 05:31:21 dialing manager at 10.128.0.105:40973 2019/10/14 05:31:21 syscalls: 2523 2019/10/14 05:31:21 code coverage: enabled 2019/10/14 05:31:21 comparison tracing: enabled 2019/10/14 05:31:21 extra coverage: extra coverage is not supported by the kernel 2019/10/14 05:31:21 setuid sandbox: enabled syzkaller login: [ 48.728759][ T7151] ================================================================== [ 48.736987][ T7151] BUG: KCSAN: data-race in pipe_poll / pipe_write [ 48.743374][ T7151] [ 48.745680][ T7151] read to 0xffff8881267433f8 of 4 bytes by task 7144 on cpu 0: [ 48.753202][ T7151] pipe_poll+0x84/0x1d0 [ 48.757366][ T7151] do_select+0x7d0/0x1020 [ 48.761677][ T7151] core_sys_select+0x38b/0x520 [ 48.766422][ T7151] kern_select+0x106/0x170 [ 48.770817][ T7151] __x64_sys_select+0x70/0x90 [ 48.775475][ T7151] do_syscall_64+0xcf/0x2f0 [ 48.779963][ T7151] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.785824][ T7151] [ 48.788133][ T7151] write to 0xffff8881267433f8 of 4 bytes by task 7151 on cpu 1: [ 48.795738][ T7151] pipe_write+0x268/0x970 [ 48.800055][ T7151] new_sync_write+0x388/0x4a0 [ 48.804707][ T7151] __vfs_write+0xb1/0xc0 [ 48.808933][ T7151] vfs_write+0x18a/0x390 [ 48.813159][ T7151] ksys_write+0xd5/0x1b0 [ 48.817390][ T7151] __x64_sys_write+0x4c/0x60 [ 48.821956][ T7151] do_syscall_64+0xcf/0x2f0 [ 48.826455][ T7151] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.832317][ T7151] [ 48.834621][ T7151] Reported by Kernel Concurrency Sanitizer on: [ 48.840749][ T7151] CPU: 1 PID: 7151 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 48.847827][ T7151] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.857858][ T7151] ================================================================== [ 48.865891][ T7151] Kernel panic - not syncing: panic_on_warn set ... [ 48.872457][ T7151] CPU: 1 PID: 7151 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 48.879538][ T7151] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.889565][ T7151] Call Trace: [ 48.892849][ T7151] dump_stack+0xf5/0x159 [ 48.897086][ T7151] panic+0x209/0x639 [ 48.900983][ T7151] ? vprintk_func+0x8d/0x140 [ 48.905570][ T7151] kcsan_report.cold+0xc/0x1b [ 48.910230][ T7151] __kcsan_setup_watchpoint+0x3ee/0x510 [ 48.915752][ T7151] __tsan_write4+0x32/0x40 [ 48.920148][ T7151] pipe_write+0x268/0x970 [ 48.924462][ T7151] new_sync_write+0x388/0x4a0 [ 48.929134][ T7151] __vfs_write+0xb1/0xc0 [ 48.933370][ T7151] vfs_write+0x18a/0x390 [ 48.937606][ T7151] ksys_write+0xd5/0x1b0 [ 48.941847][ T7151] __x64_sys_write+0x4c/0x60 [ 48.946420][ T7151] do_syscall_64+0xcf/0x2f0 [ 48.950908][ T7151] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.956777][ T7151] RIP: 0033:0x47c530 [ 48.960690][ T7151] 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 [ 48.980267][ T7151] RSP: 002b:000000c42014b938 EFLAGS: 00000216 ORIG_RAX: 0000000000000001 [ 48.988650][ T7151] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530 [ 48.996596][ T7151] RDX: 000000000000002f RSI: 000000c420080600 RDI: 0000000000000002 [ 49.004547][ T7151] RBP: 000000c42014b990 R08: 0000000000000000 R09: 0000000000000000 [ 49.012497][ T7151] R10: 0000000000000000 R11: 0000000000000216 R12: ffffffffffffffff [ 49.020444][ T7151] R13: 0000000000000063 R14: 0000000000000062 R15: 0000000000000100 [ 49.029681][ T7151] Kernel Offset: disabled [ 49.034010][ T7151] Rebooting in 86400 seconds..