[....] Starting enhanced syslogd: rsyslogd[ 13.581808] audit: type=1400 audit(1520799974.845:4): avc: denied { syslog } for pid=3650 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1
[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Starting mcstransd:
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Debian GNU/Linux 7 syzkaller ttyS0
Warning: Permanently added '10.128.0.5' (ECDSA) to the list of known hosts.
net.ipv6.conf.syz_tun.accept_dad = 0
net.ipv6.conf.syz_tun.router_solicitations = 0
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: File exists
RTNETLINK answers: File exists
RTNETLINK answers: Operation not supported
Cannot find device "bridge0"
Cannot find device "bridge0"
Cannot find device "bridge0"
Cannot find device "bridge0"
Cannot find device "vcan0"
Cannot find device "vcan0"
Cannot find device "vcan0"
Cannot find device "vcan0"
RTNETLINK answers: Operation not supported
Cannot find device "gre0"
Cannot find device "gre0"
Cannot find device "gre0"
Cannot find device "gre0"
Cannot find device "gretap0"
Cannot find device "gretap0"
Cannot find device "gretap0"
Cannot find device "gretap0"
Cannot find device "ip_vti0"
Cannot find device "ip_vti0"
Cannot find device "ip_vti0"
Cannot find device "ip_vti0"
Cannot find device "ip6_vti0"
Cannot find device "ip6_vti0"
Cannot find device "ip6_vti0"
Cannot find device "ip6_vti0"
Cannot find device "ip6tnl0"
Cannot find device "ip6tnl0"
Cannot find device "ip6tnl0"
Cannot find device "ip6tnl0"
Cannot find device "ip6gre0"
Cannot find device "ip6gre0"
Cannot find device "ip6gre0"
Cannot find device "ip6gre0"
Cannot find device "ip6gretap0"
Cannot find device "ip6gretap0"
Cannot find device "ip6gretap0"
Cannot find device "ip6gretap0"
Cannot find device "erspan0"
Cannot find device "erspan0"
Cannot find device "erspan0"
Cannot find device "erspan0"
Cannot find device "bond0"
Cannot find device "bond0"
Cannot find device "bond0"
Cannot find device "bond0"
Cannot find device "veth0"
Cannot find device "veth0"
Cannot find device "veth0"
Cannot find device "veth0"
Cannot find device "veth1"
Cannot find device "veth1"
Cannot find device "veth1"
Cannot find device "veth1"
executing program
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syzkaller login: [ 25.836590] kasan: CONFIG_KASAN_INLINE enabled
[ 25.841421] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 25.848769] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[ 25.854978] Dumping ftrace buffer:
[ 25.858501] (ftrace buffer empty)
[ 25.862199] Modules linked in:
[ 25.865481] CPU: 1 PID: 4101 Comm: syzkaller671152 Not tainted 4.9.87-ga290494 #53
[ 25.873159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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[ 25.883875] task: ffff8801d416e000 task.stack: ffff8801d0678000
[ 25.889899] RIP: 0010:[<ffffffff8266928b>] [<ffffffff8266928b>] sg_remove_scat.isra.19+0x17b/0x2d0
[ 25.899182] RSP: 0018:ffff8801d067fad0 EFLAGS: 00010206
[ 25.904602] RAX: 1ffff1003a1fe86d RBX: ffff8801d0ff4358 RCX: 0000000000000003
[ 25.911845] RDX: 0000000000000018 RSI: 0000000000000000 RDI: ffff8801cfd81b9c
[ 25.919088] RBP: ffff8801d067fb20 R08: 0000000000000000 R09: ffffed0036971719
[ 25.926430] R10: 0000000000000005 R11: ffffed0036971718 R12: 0000000000000003
executing program
executing program
[ 25.933672] R13: 0000000000000018 R14: 0000000000000000 R15: dffffc0000000000
[ 25.941537] FS: 00007f99899ab700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
[ 25.949743] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 25.955598] CR2: 0000000020c2bff8 CR3: 00000001d9866000 CR4: 0000000000160670
[ 25.962849] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 25.970092] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 25.977332] Stack:
[ 25.979455] ffff8801d0ff4370 ffffed003a1fe86b ffffed003a1fe86e ffff8801d0ff4368
executing program
executing program
[ 25.987436] ffff8801cfd81b80 ffff8801d0ff4340 0000000000000000 0000000000000000
[ 25.995435] 0000000000000000 ffff8801d0ff4438 ffff8801d067fb60 ffffffff82669695
[ 26.003501] Call Trace:
[ 26.006080] [<ffffffff82669695>] sg_finish_rem_req+0x2b5/0x340
[ 26.012110] [<ffffffff8266b526>] sg_read+0xa16/0x1440
[ 26.017360] [<ffffffff8266ab10>] ? sg_proc_seq_show_debug+0xd90/0xd90
[ 26.024005] [<ffffffff8123c1a0>] ? debug_check_no_locks_freed+0x2c0/0x2c0
[ 26.030992] [<ffffffff8266ab10>] ? sg_proc_seq_show_debug+0xd90/0xd90
executing program
executing program
[ 26.037649] [<ffffffff8156c2e3>] __vfs_read+0x103/0x670
[ 26.043075] [<ffffffff8156c1e0>] ? default_llseek+0x290/0x290
[ 26.049020] [<ffffffff81643c86>] ? fsnotify+0x86/0xf30
[ 26.054372] [<ffffffff81644b30>] ? fsnotify+0xf30/0xf30
[ 26.059794] [<ffffffff81bdc9a9>] ? avc_policy_seqno+0x9/0x20
[ 26.065651] [<ffffffff81bed2f2>] ? selinux_file_permission+0x82/0x460
[ 26.072294] [<ffffffff81bd3a69>] ? security_file_permission+0x89/0x1e0
[ 26.079021] [<ffffffff8156ff15>] ? rw_verify_area+0xe5/0x2b0
executing program
executing program
executing program
[ 26.084878] [<ffffffff815701fe>] vfs_read+0x11e/0x380
[ 26.090134] [<ffffffff81573ef9>] SyS_read+0xd9/0x1b0
[ 26.095306] [<ffffffff81573e20>] ? vfs_copy_file_range+0x740/0x740
[ 26.101687] [<ffffffff810063a8>] ? do_syscall_64+0x48/0x490
[ 26.107469] [<ffffffff81573e20>] ? vfs_copy_file_range+0x740/0x740
[ 26.113848] [<ffffffff81006504>] do_syscall_64+0x1a4/0x490
[ 26.119534] [<ffffffff838b6b53>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
executing program
[ 26.126437] Code: 45 b8 eb 3e e8 27 24 d0 fe 48 8b 45 c8 48 c1 e8 03 42 80 3c 38 00 0f 85 3a 01 00 00 4c 8b 73 10 4b 8d 14 2e 48 89 d1 48 c1 e9 03 <42> 80 3c 39 00 0f 85 0b 01 00 00 48 8b 12 49 83 c5 08 48 85 d2
[ 26.153232] RIP [<ffffffff8266928b>] sg_remove_scat.isra.19+0x17b/0x2d0
[ 26.160165] RSP <ffff8801d067fad0>
[ 26.164011] ---[ end trace 4dd5b24e1fe0bd02 ]---
[ 26.168746] Kernel panic - not syncing: Fatal exception
[ 26.174459] Dumping ftrace buffer:
[ 26.177982] (ftrace buffer empty)
[ 26.181666] Kernel Offset: disabled
[ 26.185264] Rebooting in 86400 seconds..