Warning: Permanently added '10.128.1.0' (ECDSA) to the list of known hosts. 2019/10/06 23:43:55 fuzzer started 2019/10/06 23:43:57 dialing manager at 10.128.0.105:35709 2019/10/06 23:43:57 syscalls: 2523 2019/10/06 23:43:57 code coverage: enabled 2019/10/06 23:43:57 comparison tracing: enabled 2019/10/06 23:43:57 extra coverage: extra coverage is not supported by the kernel 2019/10/06 23:43:57 setuid sandbox: enabled 2019/10/06 23:43:57 namespace sandbox: enabled 2019/10/06 23:43:57 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/06 23:43:57 fault injection: enabled 2019/10/06 23:43:57 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/06 23:43:57 net packet injection: enabled 2019/10/06 23:43:57 net device setup: enabled 2019/10/06 23:43:57 concurrency sanitizer: enabled [ 48.401511][ T7303] ================================================================== [ 48.409867][ T7303] BUG: KCSAN: data-race in tcp_poll / tcp_recvmsg [ 48.416255][ T7303] [ 48.418584][ T7303] read to 0xffff888123ef37b4 of 4 bytes by task 7295 on cpu 0: [ 48.426122][ T7303] tcp_poll+0x1cc/0x6b0 [ 48.430256][ T7303] sock_poll+0xed/0x250 [ 48.434579][ T7303] ep_item_poll.isra.0+0x90/0x190 [ 48.439595][ T7303] ep_send_events_proc+0x113/0x5c0 [ 48.444690][ T7303] ep_scan_ready_list.constprop.0+0x189/0x500 [ 48.450740][ T7303] ep_poll+0xe3/0x900 [ 48.454718][ T7303] do_epoll_wait+0x162/0x180 [ 48.459305][ T7303] __x64_sys_epoll_pwait+0xcd/0x170 [ 48.464497][ T7303] do_syscall_64+0xcf/0x2f0 [ 48.468987][ T7303] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.474859][ T7303] [ 48.477180][ T7303] write to 0xffff888123ef37b4 of 4 bytes by task 7303 on cpu 1: [ 48.484867][ T7303] tcp_recvmsg+0xd86/0x1a30 [ 48.489355][ T7303] inet_recvmsg+0xbb/0x250 [ 48.493766][ T7303] sock_recvmsg+0x92/0xb0 [ 48.498132][ T7303] sock_read_iter+0x15f/0x1e0 [ 48.502794][ T7303] new_sync_read+0x389/0x4f0 [ 48.507373][ T7303] __vfs_read+0xb1/0xc0 [ 48.511511][ T7303] vfs_read+0x143/0x2c0 [ 48.516800][ T7303] ksys_read+0xd5/0x1b0 [ 48.520937][ T7303] __x64_sys_read+0x4c/0x60 [ 48.525460][ T7303] do_syscall_64+0xcf/0x2f0 [ 48.530212][ T7303] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.536084][ T7303] [ 48.538388][ T7303] Reported by Kernel Concurrency Sanitizer on: [ 48.544528][ T7303] CPU: 1 PID: 7303 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 48.551704][ T7303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.561735][ T7303] ================================================================== [ 48.569774][ T7303] Kernel panic - not syncing: panic_on_warn set ... [ 48.576524][ T7303] CPU: 1 PID: 7303 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 48.583602][ T7303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.593639][ T7303] Call Trace: [ 48.596999][ T7303] dump_stack+0xf5/0x159 [ 48.601309][ T7303] panic+0x209/0x639 [ 48.605200][ T7303] ? vprintk_func+0x8d/0x140 [ 48.609774][ T7303] kcsan_report.cold+0x57/0xeb [ 48.614525][ T7303] __kcsan_setup_watchpoint+0x342/0x500 [ 48.620145][ T7303] __tsan_write4+0x32/0x40 [ 48.624539][ T7303] tcp_recvmsg+0xd86/0x1a30 [ 48.629115][ T7303] inet_recvmsg+0xbb/0x250 [ 48.633506][ T7303] ? __tsan_read8+0x2c/0x30 [ 48.637987][ T7303] ? inet_sendpage+0x100/0x100 [ 48.642726][ T7303] sock_recvmsg+0x92/0xb0 [ 48.647032][ T7303] sock_read_iter+0x15f/0x1e0 [ 48.651691][ T7303] new_sync_read+0x389/0x4f0 [ 48.656285][ T7303] __vfs_read+0xb1/0xc0 [ 48.660421][ T7303] vfs_read+0x143/0x2c0 [ 48.664565][ T7303] ksys_read+0xd5/0x1b0 [ 48.668700][ T7303] __x64_sys_read+0x4c/0x60 [ 48.673182][ T7303] do_syscall_64+0xcf/0x2f0 [ 48.677665][ T7303] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.683557][ T7303] RIP: 0033:0x47c530 [ 48.687432][ T7303] 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 [ 48.707158][ T7303] RSP: 002b:000000c4203077d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 48.715559][ T7303] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530 [ 48.724691][ T7303] RDX: 0000000000001000 RSI: 000000c4200a0000 RDI: 0000000000000003 [ 48.732662][ T7303] RBP: 000000c420307830 R08: 0000000000000000 R09: 0000000000000000 [ 48.740627][ T7303] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000020 [ 48.748578][ T7303] R13: ffffffffffffffff R14: 0000000000000004 R15: ffffffffffffffff [ 48.758383][ T7303] Kernel Offset: disabled [ 48.762762][ T7303] Rebooting in 86400 seconds..