Warning: Permanently added '10.128.1.23' (ECDSA) to the list of known hosts. 2019/10/15 12:03:38 fuzzer started 2019/10/15 12:03:39 dialing manager at 10.128.0.105:38903 2019/10/15 12:03:39 syscalls: 2523 2019/10/15 12:03:39 code coverage: enabled 2019/10/15 12:03:39 comparison tracing: enabled 2019/10/15 12:03:39 extra coverage: extra coverage is not supported by the kernel 2019/10/15 12:03:39 setuid sandbox: enabled 2019/10/15 12:03:39 namespace sandbox: enabled 2019/10/15 12:03:39 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/15 12:03:39 fault injection: enabled 2019/10/15 12:03:39 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/15 12:03:39 net packet injection: enabled 2019/10/15 12:03:39 net device setup: enabled 2019/10/15 12:03:39 concurrency sanitizer: enabled syzkaller login: [ 54.023423][ C1] ================================================================== [ 54.031576][ C1] BUG: KCSAN: data-race in tick_sched_do_timer / tick_sched_do_timer [ 54.039624][ C1] [ 54.041948][ C1] read to 0xffffffff85caf310 of 4 bytes by interrupt on cpu 0: [ 54.049481][ C1] tick_sched_do_timer+0x33/0xe0 [ 54.054394][ C1] tick_sched_timer+0x43/0xe0 [ 54.059047][ C1] __hrtimer_run_queues+0x288/0x600 [ 54.064221][ C1] hrtimer_interrupt+0x22a/0x480 [ 54.069135][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 54.074666][ C1] apic_timer_interrupt+0xf/0x20 [ 54.079577][ C1] __kcsan_check_watchpoint+0x7c/0x180 [ 54.085008][ C1] __tsan_read8+0x15/0x30 [ 54.089311][ C1] __should_failslab+0x29/0x130 [ 54.094136][ C1] should_failslab+0x9/0x14 [ 54.098614][ C1] kmem_cache_alloc+0x29/0x5d0 [ 54.103349][ C1] __build_skb+0x3b/0x80 [ 54.107564][ C1] __napi_alloc_skb+0x18a/0x210 [ 54.112404][ C1] page_to_skb+0x8d/0x480 [ 54.116714][ C1] [ 54.119021][ C1] write to 0xffffffff85caf310 of 4 bytes by interrupt on cpu 1: [ 54.127158][ C1] tick_sched_do_timer+0xc0/0xe0 [ 54.132080][ C1] tick_sched_timer+0x43/0xe0 [ 54.136747][ C1] __hrtimer_run_queues+0x288/0x600 [ 54.141921][ C1] hrtimer_interrupt+0x22a/0x480 [ 54.146838][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 54.152291][ C1] apic_timer_interrupt+0xf/0x20 [ 54.157216][ C1] __kcsan_check_watchpoint+0x0/0x180 [ 54.162559][ C1] __should_failslab+0x29/0x130 [ 54.167383][ C1] should_failslab+0x9/0x14 [ 54.171874][ C1] kmem_cache_alloc_node_trace+0x3b/0x670 [ 54.177580][ C1] __kmalloc_node_track_caller+0x38/0x50 [ 54.183194][ C1] __kmalloc_reserve.isra.0+0x49/0xd0 [ 54.188537][ C1] __alloc_skb+0xc2/0x350 [ 54.192834][ C1] [ 54.195147][ C1] Reported by Kernel Concurrency Sanitizer on: [ 54.201274][ C1] CPU: 1 PID: 7305 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 54.208350][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.218377][ C1] ================================================================== [ 54.226412][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 54.232974][ C1] CPU: 1 PID: 7305 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 54.240064][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.250104][ C1] Call Trace: [ 54.253368][ C1] [ 54.256209][ C1] dump_stack+0xf5/0x159 [ 54.260430][ C1] panic+0x209/0x639 [ 54.264302][ C1] ? should_failslab+0x9/0x14 [ 54.268956][ C1] ? vprintk_func+0x8d/0x140 [ 54.273525][ C1] kcsan_report.cold+0xc/0x1b [ 54.278188][ C1] __kcsan_setup_watchpoint+0x3ee/0x510 [ 54.283813][ C1] __tsan_write4+0x32/0x40 [ 54.288988][ C1] tick_sched_do_timer+0xc0/0xe0 [ 54.294353][ C1] tick_sched_timer+0x43/0xe0 [ 54.299019][ C1] __hrtimer_run_queues+0x288/0x600 [ 54.304192][ C1] ? tick_sched_do_timer+0xe0/0xe0 [ 54.309283][ C1] hrtimer_interrupt+0x22a/0x480 [ 54.314203][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 54.319640][ C1] apic_timer_interrupt+0xf/0x20 [ 54.324559][ C1] [ 54.327494][ C1] RIP: 0010:__kcsan_check_watchpoint+0x0/0x180 [ 54.333625][ C1] Code: 7e a9 00 01 1f 00 75 10 65 48 8b 04 25 40 6c 01 00 89 b8 e4 09 00 00 c3 65 89 3d 9f 95 af 7e c3 66 2e 0f 1f 84 00 00 00 00 00 <0f> b6 0d 19 56 b1 04 31 c0 84 c9 0f 84 53 01 00 00 55 41 89 d0 65 [ 54.353203][ C1] RSP: 0018:ffffc9000166b8c8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 54.361628][ C1] RAX: ffff888126865100 RBX: ffff88812b800900 RCX: 0000000000000280 [ 54.369577][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff860437c0 [ 54.380822][ C1] RBP: ffffc9000166b8d8 R08: ffff888126865100 R09: ffff888124cfb700 [ 54.388804][ C1] R10: ffff888124cfb700 R11: ffffffff86042cc0 R12: ffffffff860437c0 [ 54.396750][ C1] R13: ffff88812b800900 R14: 0000000000082a20 R15: 0000000000000000 [ 54.404710][ C1] ? __tsan_read8+0x15/0x30 [ 54.409209][ C1] __should_failslab+0x29/0x130 [ 54.414036][ C1] should_failslab+0x9/0x14 [ 54.418515][ C1] kmem_cache_alloc_node_trace+0x3b/0x670 [ 54.424218][ C1] ? __tsan_read8+0x2c/0x30 [ 54.428699][ C1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.434920][ C1] ? debug_smp_processor_id+0x4c/0x172 [ 54.440357][ C1] __kmalloc_node_track_caller+0x38/0x50 [ 54.445989][ C1] __kmalloc_reserve.isra.0+0x49/0xd0 [ 54.451343][ C1] __alloc_skb+0xc2/0x350 [ 54.455654][ C1] __tcp_send_ack+0x7e/0x300 [ 54.460220][ C1] tcp_send_ack+0x34/0x40 [ 54.464523][ C1] tcp_cleanup_rbuf+0x130/0x360 [ 54.469348][ C1] tcp_recvmsg+0x633/0x1a30 [ 54.473835][ C1] inet_recvmsg+0xbb/0x250 [ 54.478229][ C1] ? __tsan_read8+0x2c/0x30 [ 54.482707][ C1] ? inet_sendpage+0x100/0x100 [ 54.487444][ C1] sock_recvmsg+0x92/0xb0 [ 54.491759][ C1] sock_read_iter+0x15f/0x1e0 [ 54.496416][ C1] new_sync_read+0x389/0x4f0 [ 54.500992][ C1] __vfs_read+0xb1/0xc0 [ 54.505127][ C1] vfs_read+0x143/0x2c0 [ 54.509258][ C1] ksys_read+0xd5/0x1b0 [ 54.513404][ C1] __x64_sys_read+0x4c/0x60 [ 54.517888][ C1] do_syscall_64+0xcf/0x2f0 [ 54.522367][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.528248][ C1] RIP: 0033:0x47c530 [ 54.532121][ C1] 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 [ 54.551709][ C1] RSP: 002b:000000c4203af810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 54.560094][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530 [ 54.568039][ C1] RDX: 0000000000001000 RSI: 000000c420058000 RDI: 0000000000000003 [ 54.575984][ C1] RBP: 000000c4203af868 R08: 0000000000000000 R09: 0000000000000000 [ 54.583932][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000020 [ 54.591877][ C1] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff [ 54.601172][ C1] Kernel Offset: disabled [ 54.605492][ C1] Rebooting in 86400 seconds..