[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[ 100.630375][ T31] audit: type=1800 audit(1565099880.706:25): pid=11393 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0
[ 100.662850][ T31] audit: type=1800 audit(1565099880.736:26): pid=11393 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0
[ 100.702568][ T31] audit: type=1800 audit(1565099880.766:27): pid=11393 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 '10.128.0.230' (ECDSA) to the list of known hosts.
2019/08/06 13:58:15 fuzzer started
2019/08/06 13:58:21 dialing manager at 10.128.0.26:36487
2019/08/06 13:58:22 syscalls: 2367
2019/08/06 13:58:22 code coverage: enabled
2019/08/06 13:58:22 comparison tracing: CONFIG_KCOV_ENABLE_COMPARISONS is not enabled
2019/08/06 13:58:22 extra coverage: enabled
2019/08/06 13:58:22 setuid sandbox: enabled
2019/08/06 13:58:22 namespace sandbox: enabled
2019/08/06 13:58:22 Android sandbox: /sys/fs/selinux/policy does not exist
2019/08/06 13:58:22 fault injection: enabled
2019/08/06 13:58:22 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/08/06 13:58:22 net packet injection: enabled
2019/08/06 13:58:22 net device setup: enabled
syzkaller login: [ 258.943961][ C1] ==================================================================
[ 258.953288][ C1] BUG: KMSAN: uninit-value in kmem_cache_alloc_node+0x5d0/0xe70
[ 258.961323][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.3.0-rc3+ #16
[ 258.969331][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 258.979585][ C1] Call Trace:
[ 258.982898][ C1]
[ 258.985879][ C1] dump_stack+0x191/0x1f0
[ 258.990257][ C1] kmsan_report+0x162/0x2d0
[ 258.994986][ C1] __msan_warning+0x75/0xe0
[ 258.999976][ C1] kmem_cache_alloc_node+0x5d0/0xe70
[ 259.005607][ C1] ? __alloc_skb+0x215/0xa10
[ 259.011366][ C1] __alloc_skb+0x215/0xa10
[ 259.016105][ C1] aoecmd_cfg+0x205/0xa80
[ 259.020591][ C1] discover_timer+0x86/0xa0
[ 259.025120][ C1] call_timer_fn+0x232/0x530
[ 259.029939][ C1] ? skbfree+0x4a0/0x4a0
[ 259.034247][ C1] __run_timers+0xcdc/0x11a0
[ 259.039533][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20
[ 259.045979][ C1] ? skbfree+0x4a0/0x4a0
[ 259.050292][ C1] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 259.056596][ C1] run_timer_softirq+0x2d/0x50
[ 259.061398][ C1] ? timers_dead_cpu+0x9d0/0x9d0
[ 259.067220][ C1] __do_softirq+0x4a1/0x83a
[ 259.072232][ C1] irq_exit+0x230/0x280
[ 259.076545][ C1] exiting_irq+0xe/0x10
[ 259.081457][ C1] smp_apic_timer_interrupt+0x48/0x70
[ 259.087159][ C1] apic_timer_interrupt+0x2e/0x40
[ 259.092208][ C1]
[ 259.095344][ C1] RIP: 0010:default_idle+0x53/0x90
[ 259.100472][ C1] Code: 43 51 ed f2 44 8b 35 f4 c0 d3 01 48 c7 c7 78 c5 25 90 e8 10 3c b3 f3 83 38 00 75 31 45 85 f6 7e 07 0f 00 2d 6f 4a 4f 00 fb f4 <65> 8b 35 8e ae b0 71 c7 03 00 00 00 00 c7 43 08 00 00 00 00 bf ff
[ 259.120336][ C1] RSP: 0018:ffff8881280cfe10 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 259.128774][ C1] RAX: ffff888217c46578 RBX: ffff88812d7e89a0 RCX: ccccccccccccd000
[ 259.136777][ C1] RDX: ffff888207e3f578 RSI: ffffea000a76d5e0 RDI: ffffffff9025c578
[ 259.145193][ C1] RBP: ffff8881280cfe20 R08: ffffea000000000f R09: ffff88812fffb000
[ 259.153187][ C1] R10: 0000000000000004 R11: ffffffff8e520450 R12: 0000000000000001
[ 259.161178][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88812d7e89a0
[ 259.169218][ C1] ? __cpuidle_text_start+0x8/0x8
[ 259.174287][ C1] ? __cpuidle_text_start+0x8/0x8
[ 259.179341][ C1] arch_cpu_idle+0x25/0x30
[ 259.183781][ C1] do_idle+0x1d7/0x790
[ 259.187889][ C1] cpu_startup_entry+0x45/0x50
[ 259.192960][ C1] ? setup_APIC_timer+0x210/0x210
[ 259.198012][ C1] start_secondary+0x370/0x470
[ 259.202817][ C1] secondary_startup_64+0xa4/0xb0
[ 259.207873][ C1]
[ 259.210206][ C1] Uninit was stored to memory at:
[ 259.215257][ C1] kmsan_internal_chain_origin+0xcc/0x150
[ 259.220996][ C1] __msan_chain_origin+0x6b/0xe0
[ 259.225955][ C1] ___slab_alloc+0x1dbc/0x1fb0
[ 259.230771][ C1] kmem_cache_alloc_node+0x769/0xe70
[ 259.236100][ C1] __alloc_skb+0x215/0xa10
[ 259.240531][ C1] aoecmd_cfg+0x205/0xa80
[ 259.244879][ C1] discover_timer+0x86/0xa0
[ 259.249397][ C1] call_timer_fn+0x232/0x530
[ 259.254001][ C1] __run_timers+0xcdc/0x11a0
[ 259.258605][ C1] run_timer_softirq+0x2d/0x50
[ 259.263382][ C1] __do_softirq+0x4a1/0x83a
[ 259.267898][ C1] irq_exit+0x230/0x280
[ 259.272064][ C1] exiting_irq+0xe/0x10
[ 259.276280][ C1] smp_apic_timer_interrupt+0x48/0x70
[ 259.281675][ C1] apic_timer_interrupt+0x2e/0x40
[ 259.286716][ C1] default_idle+0x53/0x90
[ 259.291070][ C1] arch_cpu_idle+0x25/0x30
[ 259.295497][ C1] do_idle+0x1d7/0x790
[ 259.299578][ C1] cpu_startup_entry+0x45/0x50
[ 259.304357][ C1] start_secondary+0x370/0x470
[ 259.309157][ C1] secondary_startup_64+0xa4/0xb0
[ 259.314178][ C1]
[ 259.317207][ C1] Uninit was created at:
[ 259.321493][ C1] kmsan_internal_poison_shadow+0x53/0xa0
[ 259.327265][ C1] kmsan_slab_free+0x8d/0x100
[ 259.331987][ C1] kmem_cache_free_bulk+0x3ad9/0x3f50
[ 259.337384][ C1] napi_consume_skb+0x593/0x5d0
[ 259.342260][ C1] free_old_xmit_skbs+0x1a1/0x450
[ 259.347313][ C1] virtnet_poll_tx+0x24c/0x4c0
[ 259.352153][ C1] net_rx_action+0x74b/0x1950
[ 259.356856][ C1] __do_softirq+0x4a1/0x83a
[ 259.361374][ C1] irq_exit+0x230/0x280
[ 259.365545][ C1] do_IRQ+0x20d/0x3a0
[ 259.369561][ C1] ret_from_intr+0x0/0x33
[ 259.373915][ C1] default_idle+0x53/0x90
[ 259.378259][ C1] arch_cpu_idle+0x25/0x30
[ 259.382688][ C1] do_idle+0x1d7/0x790
[ 259.386781][ C1] cpu_startup_entry+0x45/0x50
[ 259.391585][ C1] start_secondary+0x370/0x470
[ 259.396367][ C1] secondary_startup_64+0xa4/0xb0
[ 259.401395][ C1] ==================================================================
[ 259.409498][ C1] Disabling lock debugging due to kernel taint
[ 259.415669][ C1] Kernel panic - not syncing: panic_on_warn set ...
[ 259.434823][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G B 5.3.0-rc3+ #16
[ 259.443422][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 259.453609][ C1] Call Trace:
[ 259.456922][ C1]
[ 259.459805][ C1] dump_stack+0x191/0x1f0
[ 259.464201][ C1] panic+0x3c9/0xc1e
[ 259.468200][ C1] kmsan_report+0x2ca/0x2d0
[ 259.472757][ C1] __msan_warning+0x75/0xe0
[ 259.477297][ C1] kmem_cache_alloc_node+0x5d0/0xe70
[ 259.482617][ C1] ? __alloc_skb+0x215/0xa10
[ 259.487294][ C1] __alloc_skb+0x215/0xa10
[ 259.491782][ C1] aoecmd_cfg+0x205/0xa80
[ 259.496198][ C1] discover_timer+0x86/0xa0
[ 259.500746][ C1] call_timer_fn+0x232/0x530
[ 259.505373][ C1] ? skbfree+0x4a0/0x4a0
[ 259.511189][ C1] __run_timers+0xcdc/0x11a0
[ 259.515814][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20
[ 259.522269][ C1] ? skbfree+0x4a0/0x4a0
[ 259.526580][ C1] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 259.532595][ C1] run_timer_softirq+0x2d/0x50
[ 259.537391][ C1] ? timers_dead_cpu+0x9d0/0x9d0
[ 259.542368][ C1] __do_softirq+0x4a1/0x83a
[ 259.546935][ C1] irq_exit+0x230/0x280
[ 259.551146][ C1] exiting_irq+0xe/0x10
[ 259.555331][ C1] smp_apic_timer_interrupt+0x48/0x70
[ 259.560727][ C1] apic_timer_interrupt+0x2e/0x40
[ 259.565779][ C1]
[ 259.568755][ C1] RIP: 0010:default_idle+0x53/0x90
[ 259.573892][ C1] Code: 43 51 ed f2 44 8b 35 f4 c0 d3 01 48 c7 c7 78 c5 25 90 e8 10 3c b3 f3 83 38 00 75 31 45 85 f6 7e 07 0f 00 2d 6f 4a 4f 00 fb f4 <65> 8b 35 8e ae b0 71 c7 03 00 00 00 00 c7 43 08 00 00 00 00 bf ff
[ 259.593548][ C1] RSP: 0018:ffff8881280cfe10 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 259.602261][ C1] RAX: ffff888217c46578 RBX: ffff88812d7e89a0 RCX: ccccccccccccd000
[ 259.610276][ C1] RDX: ffff888207e3f578 RSI: ffffea000a76d5e0 RDI: ffffffff9025c578
[ 259.618293][ C1] RBP: ffff8881280cfe20 R08: ffffea000000000f R09: ffff88812fffb000
[ 259.626293][ C1] R10: 0000000000000004 R11: ffffffff8e520450 R12: 0000000000000001
[ 259.634308][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88812d7e89a0
[ 259.642416][ C1] ? __cpuidle_text_start+0x8/0x8
[ 259.647584][ C1] ? __cpuidle_text_start+0x8/0x8
[ 259.652667][ C1] arch_cpu_idle+0x25/0x30
[ 259.657137][ C1] do_idle+0x1d7/0x790
[ 259.661259][ C1] cpu_startup_entry+0x45/0x50
[ 259.666094][ C1] ? setup_APIC_timer+0x210/0x210
[ 259.671162][ C1] start_secondary+0x370/0x470
[ 259.675978][ C1] secondary_startup_64+0xa4/0xb0
[ 259.682909][ C1] Kernel Offset: disabled
[ 259.687381][ C1] Rebooting in 86400 seconds..