Warning: Permanently added '10.128.10.29' (ECDSA) to the list of known hosts. 2019/10/04 18:35:43 fuzzer started 2019/10/04 18:35:44 dialing manager at 10.128.0.105:44881 2019/10/04 18:35:44 syscalls: 2523 2019/10/04 18:35:44 code coverage: enabled 2019/10/04 18:35:44 comparison tracing: enabled 2019/10/04 18:35:44 extra coverage: extra coverage is not supported by the kernel 2019/10/04 18:35:44 setuid sandbox: enabled 2019/10/04 18:35:44 namespace sandbox: enabled 2019/10/04 18:35:44 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/04 18:35:44 fault injection: enabled 2019/10/04 18:35:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/04 18:35:44 net packet injection: enabled 2019/10/04 18:35:44 net device setup: enabled 2019/10/04 18:35:44 concurrency sanitizer: enabled syzkaller login: [ 58.393398][ C0] ================================================================== [ 58.401696][ C0] BUG: KCSAN: data-race in __zone_watermark_ok / get_page_from_freelist [ 58.410575][ C0] [ 58.412893][ C0] write to 0xffff88812fffcf58 of 8 bytes by task 7150 on cpu 1: [ 58.420511][ C0] get_page_from_freelist+0x1217/0x2300 [ 58.426041][ C0] __alloc_pages_nodemask+0x255/0x4d0 [ 58.431396][ C0] alloc_pages_vma+0x15b/0x2b0 [ 58.436159][ C0] __handle_mm_fault+0x17ac/0x2d00 [ 58.441253][ C0] handle_mm_fault+0x21b/0x520 [ 58.446001][ C0] __do_page_fault+0x3fb/0x9e0 [ 58.450748][ C0] do_page_fault+0x54/0x233 [ 58.455240][ C0] page_fault+0x34/0x40 [ 58.459373][ C0] [ 58.461684][ C0] read to 0xffff88812fffcf58 of 8 bytes by interrupt on cpu 0: [ 58.469211][ C0] __zone_watermark_ok+0x106/0x240 [ 58.474361][ C0] get_page_from_freelist+0x629/0x2300 [ 58.479819][ C0] __alloc_pages_nodemask+0x255/0x4d0 [ 58.485349][ C0] alloc_pages_current+0xd1/0x170 [ 58.490359][ C0] skb_page_frag_refill+0x16f/0x260 [ 58.495539][ C0] try_fill_recv+0x51f/0xdc0 [ 58.500112][ C0] virtnet_poll+0x64c/0x7d0 [ 58.504596][ C0] net_rx_action+0x3ae/0xa50 [ 58.509168][ C0] __do_softirq+0x115/0x33f [ 58.513655][ C0] run_ksoftirqd+0x46/0x60 [ 58.518187][ C0] smpboot_thread_fn+0x37d/0x4a0 [ 58.523196][ C0] kthread+0x1d4/0x200 [ 58.527297][ C0] ret_from_fork+0x1f/0x30 [ 58.531702][ C0] [ 58.534155][ C0] Reported by Kernel Concurrency Sanitizer on: [ 58.540384][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.3.0+ #0 [ 58.547387][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.557539][ C0] ================================================================== [ 58.565966][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 58.572573][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.3.0+ #0 [ 58.579524][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.589565][ C0] Call Trace: [ 58.592846][ C0] dump_stack+0xf5/0x159 [ 58.597184][ C0] panic+0x209/0x639 [ 58.601585][ C0] ? vprintk_func+0x8d/0x140 [ 58.606176][ C0] kcsan_report.cold+0x57/0xeb [ 58.610935][ C0] __kcsan_setup_watchpoint+0x342/0x500 [ 58.616603][ C0] __tsan_read8+0x2c/0x30 [ 58.620926][ C0] __zone_watermark_ok+0x106/0x240 [ 58.626030][ C0] get_page_from_freelist+0x629/0x2300 [ 58.631489][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.637858][ C0] ? __tsan_read8+0x2c/0x30 [ 58.642647][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 58.648917][ C0] __alloc_pages_nodemask+0x255/0x4d0 [ 58.654314][ C0] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 58.660581][ C0] alloc_pages_current+0xd1/0x170 [ 58.665948][ C0] skb_page_frag_refill+0x16f/0x260 [ 58.671479][ C0] try_fill_recv+0x51f/0xdc0 [ 58.676104][ C0] virtnet_poll+0x64c/0x7d0 [ 58.680636][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 58.687522][ C0] net_rx_action+0x3ae/0xa50 [ 58.692107][ C0] __do_softirq+0x115/0x33f [ 58.696606][ C0] ? takeover_tasklets+0x250/0x250 [ 58.701755][ C0] run_ksoftirqd+0x46/0x60 [ 58.706419][ C0] smpboot_thread_fn+0x37d/0x4a0 [ 58.711480][ C0] kthread+0x1d4/0x200 [ 58.715572][ C0] ? constant_test_bit.constprop.0+0x30/0x30 [ 58.721677][ C0] ? kthread_bind+0x50/0x50 [ 58.726206][ C0] ret_from_fork+0x1f/0x30 [ 58.732336][ C0] Kernel Offset: disabled [ 58.736670][ C0] Rebooting in 86400 seconds..