[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[ 102.961621][ T32] audit: type=1800 audit(1565174490.009:25): pid=11409 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0
[ 102.986213][ T32] audit: type=1800 audit(1565174490.039:26): pid=11409 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0
[ 103.027521][ T32] audit: type=1800 audit(1565174490.069:27): pid=11409 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 '10.128.0.144' (ECDSA) to the list of known hosts.
2019/08/07 10:41:44 fuzzer started
2019/08/07 10:41:50 dialing manager at 10.128.0.26:37019
2019/08/07 10:41:50 syscalls: 2369
2019/08/07 10:41:50 code coverage: enabled
2019/08/07 10:41:50 comparison tracing: CONFIG_KCOV_ENABLE_COMPARISONS is not enabled
2019/08/07 10:41:50 extra coverage: enabled
2019/08/07 10:41:50 setuid sandbox: enabled
2019/08/07 10:41:50 namespace sandbox: enabled
2019/08/07 10:41:50 Android sandbox: /sys/fs/selinux/policy does not exist
2019/08/07 10:41:50 fault injection: enabled
2019/08/07 10:41:50 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/08/07 10:41:50 net packet injection: enabled
2019/08/07 10:41:50 net device setup: enabled
syzkaller login: [ 320.424692][ C0] ==================================================================
[ 320.433599][ C0] BUG: KMSAN: uninit-value in kmem_cache_alloc_node+0x5d0/0xe70
[ 320.441719][ C0] CPU: 0 PID: 11562 Comm: syz-fuzzer Not tainted 5.3.0-rc3+ #16
[ 320.449948][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 320.460442][ C0] Call Trace:
[ 320.463850][ C0]
[ 320.466885][ C0] dump_stack+0x191/0x1f0
[ 320.471847][ C0] kmsan_report+0x162/0x2d0
[ 320.476441][ C0] __msan_warning+0x75/0xe0
[ 320.481038][ C0] kmem_cache_alloc_node+0x5d0/0xe70
[ 320.486630][ C0] ? __alloc_skb+0x215/0xa10
[ 320.491814][ C0] __alloc_skb+0x215/0xa10
[ 320.496495][ C0] aoecmd_cfg+0x205/0xa80
[ 320.500985][ C0] discover_timer+0x86/0xa0
[ 320.505691][ C0] call_timer_fn+0x232/0x530
[ 320.510445][ C0] ? skbfree+0x4a0/0x4a0
[ 320.514893][ C0] __run_timers+0xcdc/0x11a0
[ 320.519512][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20
[ 320.525692][ C0] ? skbfree+0x4a0/0x4a0
[ 320.529998][ C0] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 320.536027][ C0] run_timer_softirq+0x2d/0x50
[ 320.540908][ C0] ? timers_dead_cpu+0x9d0/0x9d0
[ 320.545962][ C0] __do_softirq+0x4a1/0x83a
[ 320.550535][ C0] do_softirq_own_stack+0x49/0x80
[ 320.555595][ C0]
[ 320.558606][ C0] __local_bh_enable_ip+0x184/0x1d0
[ 320.563846][ C0] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 320.569858][ C0] _raw_spin_unlock_bh+0x4b/0x60
[ 320.574891][ C0] nf_conntrack_tcp_packet+0x54a0/0x7650
[ 320.580737][ C0] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 320.586789][ C0] nf_conntrack_in+0x1064/0x2664
[ 320.591824][ C0] ipv4_conntrack_local+0x1b7/0x300
[ 320.597060][ C0] ? ipv4_conntrack_in+0x80/0x80
[ 320.602021][ C0] nf_hook_slow+0x18b/0x3f0
[ 320.606624][ C0] __ip_local_out+0x69b/0x800
[ 320.611359][ C0] ? __ip_local_out+0x800/0x800
[ 320.616240][ C0] __ip_queue_xmit+0x1bdc/0x21f0
[ 320.621317][ C0] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 320.627330][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20
[ 320.633464][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20
[ 320.639597][ C0] ip_queue_xmit+0xcc/0xf0
[ 320.644052][ C0] ? tcp_v4_inbound_md5_hash+0xd10/0xd10
[ 320.649708][ C0] __tcp_transmit_skb+0x409e/0x5c60
[ 320.654998][ C0] __tcp_send_ack+0x701/0x840
[ 320.659720][ C0] tcp_send_ack+0x68/0x90
[ 320.664078][ C0] tcp_cleanup_rbuf+0x764/0x800
[ 320.668962][ C0] tcp_recvmsg+0x334d/0x4ff0
[ 320.673654][ C0] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 320.679666][ C0] ? tcp_mmap+0x150/0x150
[ 320.684027][ C0] ? tcp_mmap+0x150/0x150
[ 320.688399][ C0] inet_recvmsg+0x237/0x7d0
[ 320.692946][ C0] ? inet_sendpage+0x2c0/0x2c0
[ 320.697736][ C0] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 320.703766][ C0] ? inet_sendpage+0x2c0/0x2c0
[ 320.708559][ C0] ? inet_sendpage+0x2c0/0x2c0
[ 320.713348][ C0] sock_read_iter+0x5be/0x660
[ 320.718085][ C0] ? kernel_sock_ip_overhead+0x340/0x340
[ 320.723796][ C0] __vfs_read+0xa67/0xc90
[ 320.728200][ C0] vfs_read+0x359/0x6f0
[ 320.732423][ C0] ksys_read+0x265/0x430
[ 320.736709][ C0] __se_sys_read+0x92/0xb0
[ 320.741165][ C0] __x64_sys_read+0x4a/0x70
[ 320.745726][ C0] do_syscall_64+0xbc/0xf0
[ 320.750197][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xe7
[ 320.756173][ C0] RIP: 0033:0x47fcb4
[ 320.760121][ C0] Code: ff ff cc cc cc cc e8 2b 41 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 45 31 d2 45 31 c0 45 31 c9 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
[ 320.779919][ C0] RSP: 002b:000000c420065710 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 320.788403][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047fcb4
[ 320.796396][ C0] RDX: 0000000000001000 RSI: 000000c420368000 RDI: 0000000000000003
[ 320.804398][ C0] RBP: 000000c420065760 R08: 0000000000000000 R09: 0000000000000000
[ 320.812405][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008
[ 320.820401][ C0] R13: 0000000000000008 R14: 0000000000000002 R15: ffffffffffffffff
[ 320.828423][ C0]
[ 320.830765][ C0] Uninit was stored to memory at:
[ 320.836017][ C0] kmsan_internal_chain_origin+0xcc/0x150
[ 320.841755][ C0] __msan_chain_origin+0x6b/0xe0
[ 320.846706][ C0] ___slab_alloc+0x1dbc/0x1fb0
[ 320.851509][ C0] kmem_cache_alloc_node+0x769/0xe70
[ 320.856841][ C0] __alloc_skb+0x215/0xa10
[ 320.861277][ C0] aoecmd_cfg+0x205/0xa80
[ 320.865625][ C0] discover_timer+0x86/0xa0
[ 320.870147][ C0] call_timer_fn+0x232/0x530
[ 320.874842][ C0] __run_timers+0xcdc/0x11a0
[ 320.879463][ C0] run_timer_softirq+0x2d/0x50
[ 320.884280][ C0] __do_softirq+0x4a1/0x83a
[ 320.888802][ C0] do_softirq_own_stack+0x49/0x80
[ 320.893846][ C0] __local_bh_enable_ip+0x184/0x1d0
[ 320.899160][ C0] _raw_spin_unlock_bh+0x4b/0x60
[ 320.904226][ C0] nf_conntrack_tcp_packet+0x54a0/0x7650
[ 320.909921][ C0] nf_conntrack_in+0x1064/0x2664
[ 320.914908][ C0] ipv4_conntrack_local+0x1b7/0x300
[ 320.920141][ C0] nf_hook_slow+0x18b/0x3f0
[ 320.924694][ C0] __ip_local_out+0x69b/0x800
[ 320.929420][ C0] __ip_queue_xmit+0x1bdc/0x21f0
[ 320.934385][ C0] ip_queue_xmit+0xcc/0xf0
[ 320.938828][ C0] __tcp_transmit_skb+0x409e/0x5c60
[ 320.944057][ C0] __tcp_send_ack+0x701/0x840
[ 320.948761][ C0] tcp_send_ack+0x68/0x90
[ 320.953116][ C0] tcp_cleanup_rbuf+0x764/0x800
[ 320.958074][ C0] tcp_recvmsg+0x334d/0x4ff0
[ 320.962702][ C0] inet_recvmsg+0x237/0x7d0
[ 320.967226][ C0] sock_read_iter+0x5be/0x660
[ 320.971921][ C0] __vfs_read+0xa67/0xc90
[ 320.976273][ C0] vfs_read+0x359/0x6f0
[ 320.980444][ C0] ksys_read+0x265/0x430
[ 320.984697][ C0] __se_sys_read+0x92/0xb0
[ 320.989129][ C0] __x64_sys_read+0x4a/0x70
[ 320.993673][ C0] do_syscall_64+0xbc/0xf0
[ 320.999603][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xe7
[ 321.005505][ C0]
[ 321.007841][ C0] Uninit was created at:
[ 321.012108][ C0] kmsan_internal_poison_shadow+0x53/0xa0
[ 321.017863][ C0] kmsan_slab_free+0x8d/0x100
[ 321.022575][ C0] kmem_cache_free_bulk+0x3ad9/0x3f50
[ 321.027982][ C0] __kfree_skb_flush+0xb0/0x100
[ 321.033814][ C0] net_rx_action+0x1908/0x1950
[ 321.042954][ C0] __do_softirq+0x4a1/0x83a
[ 321.047494][ C0] irq_exit+0x230/0x280
[ 321.051672][ C0] do_IRQ+0x20d/0x3a0
[ 321.055674][ C0] ret_from_intr+0x0/0x33
[ 321.060031][ C0] default_idle+0x53/0x90
[ 321.064401][ C0] arch_cpu_idle+0x25/0x30
[ 321.068881][ C0] do_idle+0x1d7/0x790
[ 321.072968][ C0] cpu_startup_entry+0x45/0x50
[ 321.077742][ C0] rest_init+0x1be/0x1f0
[ 321.082048][ C0] arch_call_rest_init+0x13/0x15
[ 321.087006][ C0] start_kernel+0x991/0xb61
[ 321.091522][ C0] x86_64_start_reservations+0x18/0x2e
[ 321.097004][ C0] x86_64_start_kernel+0x81/0x84
[ 321.101993][ C0] secondary_startup_64+0xa4/0xb0
[ 321.107025][ C0] ==================================================================
[ 321.115095][ C0] Disabling lock debugging due to kernel taint
[ 321.121264][ C1] ==================================================================
[ 321.121301][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 321.129377][ C1] CPU: 1 PID: 16 Comm: ksoftirqd/1 Tainted: G B 5.3.0-rc3+ #16
[ 321.144782][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 321.154854][ C1] Call Trace:
[ 321.158176][ C1] dump_stack+0x191/0x1f0
[ 321.162536][ C1] kmsan_report+0x162/0x2d0
[ 321.167068][ C1] __msan_warning+0x75/0xe0
[ 321.171703][ C1] skb_clone+0x419/0x5d0
[ 321.176054][ C1] packet_rcv_spkt+0x245/0x840
[ 321.180864][ C1] ? packet_rcv+0x2190/0x2190
[ 321.185557][ C1] __netif_receive_skb_core+0x3aed/0x51a0
[ 321.191342][ C1] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 321.198048][ C1] netif_receive_skb_internal+0x3cc/0xc20
[ 321.203822][ C1] napi_gro_receive+0x682/0xb90
[ 321.208799][ C1] receive_buf+0x653b/0x8810
[ 321.213496][ C1] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 321.219538][ C1] virtnet_poll+0x666/0x19d0
[ 321.224197][ C1] ? refill_work+0x460/0x460
[ 321.228809][ C1] net_rx_action+0x74b/0x1950
[ 321.233634][ C1] ? net_tx_action+0xba0/0xba0
[ 321.238421][ C1] __do_softirq+0x4a1/0x83a
[ 321.242972][ C1] ? ksoftirqd_should_run+0x30/0x30
[ 321.248303][ C1] ? takeover_tasklets+0x900/0x900
[ 321.253448][ C1] run_ksoftirqd+0x25/0x40
[ 321.257955][ C1] smpboot_thread_fn+0x4a3/0x990
[ 321.262965][ C1] kthread+0x4b5/0x4f0
[ 321.267068][ C1] ? cpu_report_death+0x190/0x190
[ 321.272154][ C1] ? kthread_blkcg+0xf0/0xf0
[ 321.276776][ C1] ret_from_fork+0x35/0x40
[ 321.281230][ C1]
[ 321.281253][ C0] CPU: 0 PID: 11562 Comm: syz-fuzzer Tainted: G B 5.3.0-rc3+ #16
[ 321.281273][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 321.283609][ C1] kmsan_internal_chain_origin+0xcc/0x150
[ 321.292623][ C0] Call Trace:
[ 321.302712][ C1] __msan_chain_origin+0x6b/0xe0
[ 321.308409][ C0]
[ 321.311707][ C1] ___slab_alloc+0x1dbc/0x1fb0
[ 321.316725][ C0] dump_stack+0x191/0x1f0
[ 321.319583][ C1] kmem_cache_alloc+0xade/0xd10
[ 321.324397][ C0] panic+0x3c9/0xc1e
[ 321.328664][ C1] skb_clone+0x326/0x5d0
[ 321.333552][ C0] kmsan_report+0x2ca/0x2d0
[ 321.337404][ C1] packet_rcv_spkt+0x245/0x840
[ 321.341651][ C0] __msan_warning+0x75/0xe0
[ 321.346143][ C1] __netif_receive_skb_core+0x3aed/0x51a0
[ 321.350904][ C0] kmem_cache_alloc_node+0x5d0/0xe70
[ 321.355393][ C1] netif_receive_skb_internal+0x3cc/0xc20
[ 321.361115][ C0] ? __alloc_skb+0x215/0xa10
[ 321.366394][ C1] napi_gro_receive+0x682/0xb90
[ 321.372128][ C0] __alloc_skb+0x215/0xa10
[ 321.376697][ C1] receive_buf+0x653b/0x8810
[ 321.381696][ C0] aoecmd_cfg+0x205/0xa80
[ 321.386112][ C1] virtnet_poll+0x666/0x19d0
[ 321.390724][ C0] discover_timer+0x86/0xa0
[ 321.395042][ C1] net_rx_action+0x74b/0x1950
[ 321.399633][ C0] call_timer_fn+0x232/0x530
[ 321.404125][ C1] __do_softirq+0x4a1/0x83a
[ 321.408798][ C0] ? skbfree+0x4a0/0x4a0
[ 321.413385][ C1] run_ksoftirqd+0x25/0x40
[ 321.417890][ C0] __run_timers+0xcdc/0x11a0
[ 321.422177][ C1] smpboot_thread_fn+0x4a3/0x990
[ 321.426544][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20
[ 321.431124][ C1] kthread+0x4b5/0x4f0
[ 321.436092][ C0] ? skbfree+0x4a0/0x4a0
[ 321.442155][ C1] ret_from_fork+0x35/0x40
[ 321.446235][ C0] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 321.450450][ C1] kmsan_internal_poison_shadow+0x53/0xa0
[ 321.454856][ C0] run_timer_softirq+0x2d/0x50
[ 321.460921][ C1] kmsan_slab_free+0x8d/0x100
[ 321.466635][ C0] ? timers_dead_cpu+0x9d0/0x9d0
[ 321.471402][ C1] kmem_cache_free_bulk+0x3ad9/0x3f50
[ 321.476076][ C0] __do_softirq+0x4a1/0x83a
[ 321.481017][ C1] __kfree_skb_flush+0xb0/0x100
[ 321.486392][ C0] do_softirq_own_stack+0x49/0x80
[ 321.490867][ C1] net_rx_action+0x1908/0x1950
[ 321.495695][ C0]
[ 321.500738][ C1] __do_softirq+0x4a1/0x83a
[ 321.505494][ C0] __local_bh_enable_ip+0x184/0x1d0
[ 321.508420][ C1] irq_exit+0x230/0x280
[ 321.512921][ C0] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 321.518111][ C1] do_IRQ+0x20d/0x3a0
[ 321.522263][ C0] _raw_spin_unlock_bh+0x4b/0x60
[ 321.528240][ C1] ret_from_intr+0x0/0x33
[ 321.532212][ C0] nf_conntrack_tcp_packet+0x54a0/0x7650
[ 321.537142][ C1] default_idle+0x53/0x90
[ 321.541551][ C0] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 321.547103][ C1] arch_cpu_idle+0x25/0x30
[ 321.551429][ C0] nf_conntrack_in+0x1064/0x2664
[ 321.557412][ C1] do_idle+0x1d7/0x790
[ 321.561871][ C0] ipv4_conntrack_local+0x1b7/0x300
[ 321.566761][ C1] cpu_startup_entry+0x45/0x50
[ 321.570859][ C0] ? ipv4_conntrack_in+0x80/0x80
[ 321.576040][ C1] rest_init+0x1be/0x1f0
[ 321.580802][ C0] nf_hook_slow+0x18b/0x3f0
[ 321.585733][ C1] arch_call_rest_init+0x13/0x15
[ 321.589993][ C0] __ip_local_out+0x69b/0x800
[ 321.594510][ C1] start_kernel+0x991/0xb61
[ 321.599644][ C0] ? __ip_local_out+0x800/0x800
[ 321.604300][ C1] x86_64_start_reservations+0x18/0x2e
[ 321.608800][ C0] __ip_queue_xmit+0x1bdc/0x21f0
[ 321.613641][ C1] x86_64_start_kernel+0x81/0x84
[ 321.619108][ C0] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 321.624030][ C1] secondary_startup_64+0xa4/0xb0
[ 321.628972][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20
[ 321.646335][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20
[ 321.652478][ C0] ip_queue_xmit+0xcc/0xf0
[ 321.656962][ C0] ? tcp_v4_inbound_md5_hash+0xd10/0xd10
[ 321.662647][ C0] __tcp_transmit_skb+0x409e/0x5c60
[ 321.667972][ C0] __tcp_send_ack+0x701/0x840
[ 321.672723][ C0] tcp_send_ack+0x68/0x90
[ 321.677101][ C0] tcp_cleanup_rbuf+0x764/0x800
[ 321.682030][ C0] tcp_recvmsg+0x334d/0x4ff0
[ 321.686737][ C0] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 321.692756][ C0] ? tcp_mmap+0x150/0x150
[ 321.697123][ C0] ? tcp_mmap+0x150/0x150
[ 321.701503][ C0] inet_recvmsg+0x237/0x7d0
[ 321.706054][ C0] ? inet_sendpage+0x2c0/0x2c0
[ 321.710851][ C0] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0
[ 321.716871][ C0] ? inet_sendpage+0x2c0/0x2c0
[ 321.721663][ C0] ? inet_sendpage+0x2c0/0x2c0
[ 321.726460][ C0] sock_read_iter+0x5be/0x660
[ 321.731223][ C0] ? kernel_sock_ip_overhead+0x340/0x340
[ 321.736889][ C0] __vfs_read+0xa67/0xc90
[ 321.741293][ C0] vfs_read+0x359/0x6f0
[ 321.745528][ C0] ksys_read+0x265/0x430
[ 321.749829][ C0] __se_sys_read+0x92/0xb0
[ 321.754294][ C0] __x64_sys_read+0x4a/0x70
[ 321.758827][ C0] do_syscall_64+0xbc/0xf0
[ 321.763281][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xe7
[ 321.769193][ C0] RIP: 0033:0x47fcb4
[ 321.773109][ C0] Code: ff ff cc cc cc cc e8 2b 41 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 45 31 d2 45 31 c0 45 31 c9 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
[ 321.792734][ C0] RSP: 002b:000000c420065710 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 321.801172][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047fcb4
[ 321.809165][ C0] RDX: 0000000000001000 RSI: 000000c420368000 RDI: 0000000000000003
[ 321.817157][ C0] RBP: 000000c420065760 R08: 0000000000000000 R09: 0000000000000000
[ 321.825196][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008
[ 321.833196][ C0] R13: 0000000000000008 R14: 0000000000000002 R15: ffffffffffffffff
[ 323.295415][ C0] Shutting down cpus with NMI
[ 323.316232][ C0] Kernel Offset: disabled
[ 323.320658][ C0] Rebooting in 86400 seconds..