[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[ 81.911112][ T30] audit: type=1800 audit(1568979627.978:25): pid=11521 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0
[ 81.935402][ T30] audit: type=1800 audit(1568979628.008:26): pid=11521 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0
[ 81.973324][ T30] audit: type=1800 audit(1568979628.028:27): pid=11521 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0
[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Debian GNU/Linux 7 syzkaller ttyS0
Warning: Permanently added '10.128.0.29' (ECDSA) to the list of known hosts.
2019/09/20 11:40:42 fuzzer started
2019/09/20 11:40:46 dialing manager at 10.128.0.26:42045
2019/09/20 11:40:47 syscalls: 2382
2019/09/20 11:40:47 code coverage: enabled
2019/09/20 11:40:47 comparison tracing: CONFIG_KCOV_ENABLE_COMPARISONS is not enabled
2019/09/20 11:40:47 extra coverage: enabled
2019/09/20 11:40:47 setuid sandbox: enabled
2019/09/20 11:40:47 namespace sandbox: enabled
2019/09/20 11:40:47 Android sandbox: /sys/fs/selinux/policy does not exist
2019/09/20 11:40:47 fault injection: enabled
2019/09/20 11:40:47 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/09/20 11:40:47 net packet injection: enabled
2019/09/20 11:40:47 net device setup: enabled
syzkaller login: [ 197.514954][ C0] ==================================================================
[ 197.523242][ C0] BUG: KMSAN: uninit-value in kmem_cache_alloc_node+0x5d0/0xe70
[ 197.531171][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.3.0-rc7+ #0
[ 197.538258][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 197.548295][ C0] Call Trace:
[ 197.551563][ C0]
[ 197.554411][ C0] dump_stack+0x191/0x1f0
[ 197.558745][ C0] kmsan_report+0x162/0x2d0
[ 197.563242][ C0] __msan_warning+0x75/0xe0
[ 197.567734][ C0] kmem_cache_alloc_node+0x5d0/0xe70
[ 197.573009][ C0] ? kmsan_get_shadow_origin_ptr+0x71/0x4c0
[ 197.578889][ C0] ? __alloc_skb+0x215/0xa10
[ 197.583473][ C0] __alloc_skb+0x215/0xa10
[ 197.587882][ C0] ? kmsan_get_shadow_origin_ptr+0x1/0x4c0
[ 197.593681][ C0] aoecmd_cfg+0x205/0xa80
[ 197.598003][ C0] discover_timer+0x86/0xa0
[ 197.602588][ C0] call_timer_fn+0x232/0x530
[ 197.607160][ C0] ? skbfree+0x4a0/0x4a0
[ 197.611386][ C0] __run_timers+0xcdc/0x11a0
[ 197.615960][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20
[ 197.622011][ C0] ? skbfree+0x4a0/0x4a0
[ 197.626265][ C0] ? timers_dead_cpu+0x9d0/0x9d0
[ 197.631193][ C0] ? kmsan_get_shadow_origin_ptr+0x71/0x4c0
[ 197.637066][ C0] run_timer_softirq+0x2d/0x50
[ 197.641824][ C0] ? timers_dead_cpu+0x9d0/0x9d0
[ 197.646743][ C0] __do_softirq+0x4a1/0x83a
[ 197.651238][ C0] irq_exit+0x230/0x280
[ 197.655377][ C0] exiting_irq+0xe/0x10
[ 197.659521][ C0] smp_apic_timer_interrupt+0x48/0x70
[ 197.664912][ C0] apic_timer_interrupt+0x2e/0x40
[ 197.669916][ C0]
[ 197.672839][ C0] RIP: 0010:default_idle+0x53/0x90
[ 197.677930][ C0] Code: 13 ee eb f2 44 8b 35 94 79 d2 01 48 c7 c7 78 d5 25 90 e8 d0 9a b1 f3 83 38 00 75 31 45 85 f6 7e 07 0f 00 2d 8f f3 4d 00 fb f4 <65> 8b 35 2e 57 af 71 c7 03 00 00 00 00 c7 43 08 00 00 00 00 bf ff
[ 197.698578][ C0] RSP: 0018:ffffffff8f60fda0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 197.707158][ C0] RAX: ffff888217c47578 RBX: ffffffff8f638b60 RCX: ccccccccccccd000
[ 197.715111][ C0] RDX: ffff888207e40578 RSI: ffffea000a76d630 RDI: 000000001025d578
[ 197.723068][ C0] RBP: ffffffff8f60fdb0 R08: 0000000000000000 R09: ffff88821f4a91c2
[ 197.731028][ C0] R10: 0000000000000004 R11: ffffffff8e535bb0 R12: 0000000000000000
[ 197.739011][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8f638b60
[ 197.747367][ C0] ? __cpuidle_text_start+0x8/0x8
[ 197.752395][ C0] ? __cpuidle_text_start+0x8/0x8
[ 197.757421][ C0] arch_cpu_idle+0x25/0x30
[ 197.761824][ C0] do_idle+0x1d7/0x790
[ 197.765878][ C0] cpu_startup_entry+0x45/0x50
[ 197.770627][ C0] rest_init+0x1be/0x1f0
[ 197.774885][ C0] arch_call_rest_init+0x13/0x15
[ 197.779821][ C0] start_kernel+0x991/0xb61
[ 197.784345][ C0] x86_64_start_reservations+0x18/0x2e
[ 197.789900][ C0] x86_64_start_kernel+0x81/0x84
[ 197.794825][ C0] secondary_startup_64+0xa4/0xb0
[ 197.799841][ C0]
[ 197.802147][ C0] Uninit was stored to memory at:
[ 197.807255][ C0] kmsan_internal_chain_origin+0xcc/0x150
[ 197.812954][ C0] __msan_chain_origin+0x6b/0xe0
[ 197.817878][ C0] ___slab_alloc+0x1dbc/0x1fb0
[ 197.822646][ C0] kmem_cache_alloc_node+0x769/0xe70
[ 197.827915][ C0] __alloc_skb+0x215/0xa10
[ 197.832405][ C0] aoecmd_cfg+0x205/0xa80
[ 197.836979][ C0] discover_timer+0x86/0xa0
[ 197.841480][ C0] call_timer_fn+0x232/0x530
[ 197.846061][ C0] __run_timers+0xcdc/0x11a0
[ 197.850802][ C0] run_timer_softirq+0x2d/0x50
[ 197.855599][ C0] __do_softirq+0x4a1/0x83a
[ 197.860100][ C0] irq_exit+0x230/0x280
[ 197.864241][ C0] exiting_irq+0xe/0x10
[ 197.868376][ C0] smp_apic_timer_interrupt+0x48/0x70
[ 197.874769][ C0] apic_timer_interrupt+0x2e/0x40
[ 197.879788][ C0] default_idle+0x53/0x90
[ 197.884108][ C0] arch_cpu_idle+0x25/0x30
[ 197.888511][ C0] do_idle+0x1d7/0x790
[ 197.892562][ C0] cpu_startup_entry+0x45/0x50
[ 197.897304][ C0] rest_init+0x1be/0x1f0
[ 197.901530][ C0] arch_call_rest_init+0x13/0x15
[ 197.906452][ C0] start_kernel+0x991/0xb61
[ 197.910951][ C0] x86_64_start_reservations+0x18/0x2e
[ 197.916393][ C0] x86_64_start_kernel+0x81/0x84
[ 197.922129][ C0] secondary_startup_64+0xa4/0xb0
[ 197.927172][ C0]
[ 197.929492][ C0] Uninit was created at:
[ 197.934027][ C0] kmsan_internal_poison_shadow+0x58/0xb0
[ 197.940175][ C0] kmsan_slab_free+0x8d/0x100
[ 197.945352][ C0] kmem_cache_free_bulk+0x3ad9/0x3f50
[ 197.950750][ C0] napi_consume_skb+0x593/0x5d0
[ 197.955933][ C0] free_old_xmit_skbs+0x1a1/0x450
[ 197.960940][ C0] virtnet_poll_tx+0x24c/0x4c0
[ 197.965787][ C0] net_rx_action+0x74b/0x1950
[ 197.970455][ C0] __do_softirq+0x4a1/0x83a
[ 197.974941][ C0] irq_exit+0x230/0x280
[ 197.979091][ C0] do_IRQ+0x20d/0x3a0
[ 197.983202][ C0] ret_from_intr+0x0/0x33
[ 197.987524][ C0] default_idle+0x53/0x90
[ 197.991896][ C0] arch_cpu_idle+0x25/0x30
[ 197.996299][ C0] do_idle+0x1d7/0x790
[ 198.000362][ C0] cpu_startup_entry+0x45/0x50
[ 198.005115][ C0] start_secondary+0x370/0x470
[ 198.009938][ C0] secondary_startup_64+0xa4/0xb0
[ 198.015120][ C0] ==================================================================
[ 198.023164][ C0] Disabling lock debugging due to kernel taint
[ 198.029299][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 198.035982][ C0] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G B 5.3.0-rc7+ #0
[ 198.045592][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 198.055655][ C0] Call Trace:
[ 198.058936][ C0]
[ 198.061789][ C0] dump_stack+0x191/0x1f0
[ 198.066117][ C0] panic+0x3c9/0xc1e
[ 198.070029][ C0] kmsan_report+0x2ca/0x2d0
[ 198.074546][ C0] __msan_warning+0x75/0xe0
[ 198.079130][ C0] kmem_cache_alloc_node+0x5d0/0xe70
[ 198.084398][ C0] ? kmsan_get_shadow_origin_ptr+0x71/0x4c0
[ 198.092108][ C0] ? __alloc_skb+0x215/0xa10
[ 198.096703][ C0] __alloc_skb+0x215/0xa10
[ 198.101195][ C0] ? kmsan_get_shadow_origin_ptr+0x1/0x4c0
[ 198.106990][ C0] aoecmd_cfg+0x205/0xa80
[ 198.111411][ C0] discover_timer+0x86/0xa0
[ 198.115927][ C0] call_timer_fn+0x232/0x530
[ 198.120517][ C0] ? skbfree+0x4a0/0x4a0
[ 198.124758][ C0] __run_timers+0xcdc/0x11a0
[ 198.129337][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20
[ 198.135410][ C0] ? skbfree+0x4a0/0x4a0
[ 198.139649][ C0] ? timers_dead_cpu+0x9d0/0x9d0
[ 198.144582][ C0] ? kmsan_get_shadow_origin_ptr+0x71/0x4c0
[ 198.150642][ C0] run_timer_softirq+0x2d/0x50
[ 198.155566][ C0] ? timers_dead_cpu+0x9d0/0x9d0
[ 198.161112][ C0] __do_softirq+0x4a1/0x83a
[ 198.165632][ C0] irq_exit+0x230/0x280
[ 198.169790][ C0] exiting_irq+0xe/0x10
[ 198.173958][ C0] smp_apic_timer_interrupt+0x48/0x70
[ 198.179331][ C0] apic_timer_interrupt+0x2e/0x40
[ 198.184359][ C0]
[ 198.187381][ C0] RIP: 0010:default_idle+0x53/0x90
[ 198.192485][ C0] Code: 13 ee eb f2 44 8b 35 94 79 d2 01 48 c7 c7 78 d5 25 90 e8 d0 9a b1 f3 83 38 00 75 31 45 85 f6 7e 07 0f 00 2d 8f f3 4d 00 fb f4 <65> 8b 35 2e 57 af 71 c7 03 00 00 00 00 c7 43 08 00 00 00 00 bf ff
[ 198.212175][ C0] RSP: 0018:ffffffff8f60fda0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 198.220820][ C0] RAX: ffff888217c47578 RBX: ffffffff8f638b60 RCX: ccccccccccccd000
[ 198.228797][ C0] RDX: ffff888207e40578 RSI: ffffea000a76d630 RDI: 000000001025d578
[ 198.236976][ C0] RBP: ffffffff8f60fdb0 R08: 0000000000000000 R09: ffff88821f4a91c2
[ 198.244954][ C0] R10: 0000000000000004 R11: ffffffff8e535bb0 R12: 0000000000000000
[ 198.252922][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8f638b60
[ 198.260901][ C0] ? __cpuidle_text_start+0x8/0x8
[ 198.266020][ C0] ? __cpuidle_text_start+0x8/0x8
[ 198.271028][ C0] arch_cpu_idle+0x25/0x30
[ 198.275428][ C0] do_idle+0x1d7/0x790
[ 198.279478][ C0] cpu_startup_entry+0x45/0x50
[ 198.284324][ C0] rest_init+0x1be/0x1f0
[ 198.288579][ C0] arch_call_rest_init+0x13/0x15
[ 198.293509][ C0] start_kernel+0x991/0xb61
[ 198.297996][ C0] x86_64_start_reservations+0x18/0x2e
[ 198.303432][ C0] x86_64_start_kernel+0x81/0x84
[ 198.308351][ C0] secondary_startup_64+0xa4/0xb0
[ 198.315082][ C0] Kernel Offset: disabled
[ 198.319409][ C0] Rebooting in 86400 seconds..