[....] Starting enhanced syslogd: rsyslogd[ 13.588965] audit: type=1400 audit(1516306426.167:5): avc: denied { syslog } for pid=3512 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[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 19.911765] audit: type=1400 audit(1516306432.490:6): avc: denied { map } for pid=3651 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.41' (ECDSA) to the list of known hosts. executing program [ 26.145915] audit: type=1400 audit(1516306438.724:7): avc: denied { map } for pid=3665 comm="syzkaller396868" path="/root/syzkaller396868729" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 26.147846] kasan: CONFIG_KASAN_INLINE enabled [ 26.171908] audit: type=1400 audit(1516306438.726:8): avc: denied { create } for pid=3665 comm="syzkaller396868" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 26.171919] audit: type=1400 audit(1516306438.726:9): avc: denied { setopt } for pid=3665 comm="syzkaller396868" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 26.171929] audit: type=1400 audit(1516306438.726:10): avc: denied { write } for pid=3665 comm="syzkaller396868" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 26.248271] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.255648] general protection fault: 0000 [#1] SMP KASAN [ 26.261162] Dumping ftrace buffer: [ 26.264675] (ftrace buffer empty) [ 26.268357] Modules linked in: [ 26.271534] CPU: 1 PID: 3665 Comm: syzkaller396868 Not tainted 4.15.0-rc8-next-20180118+ #100 [ 26.280174] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.289510] RIP: 0010:strlen+0x1f/0xa0 [ 26.293365] RSP: 0018:ffff8801c3087768 EFLAGS: 00010292 [ 26.298699] RAX: 0000000041b58ab3 RBX: ffff8801bd253500 RCX: 000000000836b156 [ 26.305962] RDX: dffffc0000000000 RSI: ffff8801bc004a40 RDI: 0000000041b58ab3 [ 26.313217] RBP: ffff8801c3087780 R08: 1ffff10038610e55 R09: 0000000000000000 [ 26.320460] R10: ffff8801c3087770 R11: ffffed0038610e40 R12: ffff8801c30878a0 [ 26.327708] R13: 0000000041b58ab3 R14: 0000000000000040 R15: 1ffff10038610ef8 [ 26.334956] FS: 0000000002090880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 26.343161] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.349020] CR2: 0000000020007000 CR3: 00000001bc7e7006 CR4: 00000000001606e0 [ 26.356266] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.363508] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.370760] Call Trace: [ 26.373322] ? lock_acquire+0x1d5/0x580 [ 26.377273] netlink_ack+0x120/0xa10 [ 26.380963] ? netlink_sendmsg+0xe60/0xe60 [ 26.385174] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 26.391046] ? rcu_note_context_switch+0x710/0x710 [ 26.395950] netlink_rcv_skb+0x2d1/0x400 [ 26.399983] ? genl_family_rcv_msg+0xfb0/0xfb0 [ 26.404553] ? netlink_ack+0xa10/0xa10 [ 26.408414] ? genl_rcv+0x19/0x40 [ 26.411861] ? __down_interruptible+0x6b0/0x6b0 [ 26.416523] ? netlink_skb_destructor+0x1d0/0x1d0 [ 26.421344] ? selinux_nlmsg_lookup+0x32b/0x430 [ 26.425991] genl_rcv+0x28/0x40 [ 26.429243] netlink_unicast+0x4c4/0x6b0 [ 26.433278] ? netlink_attachskb+0x8a0/0x8a0 [ 26.437668] ? security_netlink_send+0x81/0xb0 [ 26.442229] netlink_sendmsg+0xa4a/0xe60 [ 26.446267] ? netlink_unicast+0x6b0/0x6b0 [ 26.450477] ? security_socket_sendmsg+0x89/0xb0 [ 26.455207] ? netlink_unicast+0x6b0/0x6b0 [ 26.459417] sock_sendmsg+0xca/0x110 [ 26.463105] ___sys_sendmsg+0x767/0x8b0 [ 26.467056] ? copy_msghdr_from_user+0x590/0x590 [ 26.471792] ? __do_page_fault+0x5f7/0xc90 [ 26.476015] ? lock_downgrade+0x980/0x980 [ 26.480142] ? __fget_light+0x297/0x380 [ 26.484092] ? fget_raw+0x20/0x20 [ 26.487525] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 26.492081] ? vmacache_find+0x5f/0x280 [ 26.496031] ? up_read+0x1a/0x40 [ 26.499376] ? __do_page_fault+0x3d6/0xc90 [ 26.503584] ? lock_release+0xa40/0xa40 [ 26.507543] ? __fdget+0x18/0x20 [ 26.510886] __sys_sendmsg+0xe5/0x210 [ 26.514658] ? __sys_sendmsg+0xe5/0x210 [ 26.518614] ? SyS_shutdown+0x290/0x290 [ 26.522564] ? __do_page_fault+0xc90/0xc90 [ 26.526775] ? SyS_setsockopt+0x215/0x360 [ 26.530904] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.535897] SyS_sendmsg+0x2d/0x50 [ 26.539428] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 26.544159] RIP: 0033:0x43fdc9 [ 26.547334] RSP: 002b:00007ffc5e698268 EFLAGS: 00000217 ORIG_RAX: 000000000000002e [ 26.555015] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fdc9 [ 26.562258] RDX: 0000000000000000 RSI: 0000000020008000 RDI: 0000000000000003 [ 26.569501] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 26.576745] R10: 0000000000000004 R11: 0000000000000217 R12: 00000000004016f0 [ 26.583987] R13: 0000000000401780 R14: 0000000000000000 R15: 0000000000000000 [ 26.591237] Code: 37 ff ff ff 0f 1f 84 00 00 00 00 00 55 48 89 f9 48 ba 00 00 00 00 00 fc ff df 48 c1 e9 03 48 89 f8 48 89 e5 41 54 53 48 83 ec 08 <0f> b6 14 11 48 89 f9 83 e1 07 38 ca 7f 04 84 d2 75 4b 80 38 00 [ 26.610314] RIP: strlen+0x1f/0xa0 RSP: ffff8801c3087768 [ 26.615700] ---[ end trace dbfc8fde0863de53 ]--- [ 26.620456] Kernel panic - not syncing: Fatal exception [ 26.626195] Dumping ftrace buffer: [ 26.629709] (ftrace buffer empty) [ 26.633401] Kernel Offset: disabled [ 26.637000] Rebooting in 86400 seconds..