[....] Starting enhanced syslogd: rsyslogd[ 13.032431] audit: type=1400 audit(1515802423.679:5): avc: denied { syslog } for pid=3341 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: [ 18.589268] audit: type=1400 audit(1515802429.235:6): avc: denied { map } for pid=3482 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 '10.128.15.193' (ECDSA) to the list of known hosts. executing program [ 24.776402] audit: type=1400 audit(1515802435.423:7): avc: denied { map } for pid=3496 comm="syzkaller152149" path="/root/syzkaller152149050" 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 [ 24.802404] audit: type=1400 audit(1515802435.423:8): avc: denied { prog_load } for pid=3496 comm="syzkaller152149" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 [ 24.825796] divide error: 0000 [#1] SMP KASAN [ 24.825800] Dumping ftrace buffer: [ 24.825803] (ftrace buffer empty) [ 24.825805] Modules linked in: [ 24.825811] CPU: 0 PID: 3496 Comm: syzkaller152149 Not tainted 4.15.0-rc7+ #169 [ 24.825814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.825825] RIP: 0010:___bpf_prog_run+0x3b6a/0x5ec0 [ 24.825827] RSP: 0018:ffff8801bf836dd0 EFLAGS: 00010246 [ 24.825831] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 24.825834] RDX: 0000000000000000 RSI: ffffc90000002030 RDI: ffffc90000002049 [ 24.825836] RBP: ffff8801bf836ed0 R08: 1ffff10037f06d51 R09: 0000000000000002 [ 24.825838] R10: ffff8801bf836f50 R11: 0000000000000000 R12: ffff8801bf836f08 [ 24.825841] R13: ffffc90000002048 R14: ffff8801bf836f08 R15: 00000000fffffffc [ 24.825845] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:0000000008174840 [ 24.825847] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 24.825850] CR2: 0000000020fd3000 CR3: 00000001bf568002 CR4: 00000000001606f0 [ 24.825854] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.825857] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.825858] Call Trace: [ 24.825866] ? bpf_jit_compile+0x30/0x30 [ 24.825875] ? netlink_lookup+0x5f7/0xa90 [ 24.825881] ? lock_downgrade+0x980/0x980 [ 24.825887] ? sock_sendmsg+0xca/0x110 [ 24.825895] ? selinux_socket_sock_rcv_skb+0x24e/0x850 [ 24.825902] __bpf_prog_run160+0xde/0x150 [ 24.825907] ? __bpf_prog_run192+0x150/0x150 [ 24.825913] ? lock_acquire+0x1d5/0x580 [ 24.825917] ? lock_acquire+0x1d5/0x580 [ 24.825925] ? lock_release+0xa40/0xa40 [ 24.825931] ? __lock_is_held+0xb6/0x140 [ 24.825942] sk_filter_trim_cap+0x33c/0x9c0 [ 24.825948] ? sk_skb_is_valid_access+0x140/0x140 [ 24.825954] ? netlink_skb_destructor+0x1d0/0x1d0 [ 24.825962] ? rtnl_fill_vf+0x480/0x480 [ 24.825968] netlink_unicast+0x1b9/0x700 [ 24.825972] ? lock_release+0xa40/0xa40 [ 24.825978] ? netlink_attachskb+0x8a0/0x8a0 [ 24.825988] rtnl_stats_get+0x7bb/0xa10 [ 24.826024] ? rtnl_fill_statsinfo.isra.22.constprop.29+0x1ca0/0x1ca0 [ 24.826029] ? rtnetlink_rcv_msg+0x625/0x1020 [ 24.826034] ? lock_downgrade+0x980/0x980 [ 24.826040] ? lock_release+0xa40/0xa40 [ 24.826046] ? __lock_is_held+0xb6/0x140 [ 24.826055] ? rtnl_fill_statsinfo.isra.22.constprop.29+0x1ca0/0x1ca0 [ 24.826060] rtnetlink_rcv_msg+0x733/0x1020 [ 24.826068] ? validate_linkmsg+0x8e0/0x8e0 [ 24.826073] ? check_noncircular+0x20/0x20 [ 24.826080] ? find_held_lock+0x35/0x1d0 [ 24.826091] ? netlink_lookup+0x5f7/0xa90 [ 24.826096] ? lock_downgrade+0x980/0x980 [ 24.826105] ? find_held_lock+0x35/0x1d0 [ 24.826113] ? rtnl_fill_statsinfo.isra.22.constprop.29+0x1ca0/0x1ca0 [ 24.826117] ? netlink_deliver_tap+0x148/0xcf0 [ 24.826121] ? lock_downgrade+0x980/0x980 [ 24.826127] ? lock_release+0xa40/0xa40 [ 24.826131] ? netlink_lookup+0x620/0xa90 [ 24.826139] ? rtnl_fill_statsinfo.isra.22.constprop.29+0x1ca0/0x1ca0 [ 24.826147] ? netlink_deliver_tap+0x171/0xcf0 [ 24.826153] ? sock_has_perm+0x2a4/0x420 [ 24.826159] netlink_rcv_skb+0x224/0x470 [ 24.826164] ? validate_linkmsg+0x8e0/0x8e0 [ 24.826172] ? netlink_ack+0xa10/0xa10 [ 24.826178] ? netlink_skb_destructor+0x1d0/0x1d0 [ 24.826186] rtnetlink_rcv+0x1c/0x20 [ 24.826191] netlink_unicast+0x4ee/0x700 [ 24.826198] ? netlink_attachskb+0x8a0/0x8a0 [ 24.826204] ? security_netlink_send+0x81/0xb0 [ 24.826210] netlink_sendmsg+0xa4a/0xe60 [ 24.826218] ? netlink_unicast+0x700/0x700 [ 24.826224] ? security_socket_sendmsg+0x89/0xb0 [ 24.826228] ? netlink_unicast+0x700/0x700 [ 24.826233] sock_sendmsg+0xca/0x110 [ 24.826241] sock_write_iter+0x31a/0x5d0 [ 24.826246] ? sock_sendmsg+0x110/0x110 [ 24.826260] ? iov_iter_init+0xaf/0x1d0 [ 24.826267] __vfs_write+0x684/0x970 [ 24.826274] ? kernel_read+0x120/0x120 [ 24.826278] ? bpf_fd_pass+0x280/0x280 [ 24.826285] ? _cond_resched+0x14/0x30 [ 24.826292] ? selinux_file_permission+0x82/0x460 [ 24.826302] ? rw_verify_area+0xe5/0x2b0 [ 24.826306] ? __fdget_raw+0x20/0x20 [ 24.826312] vfs_write+0x189/0x510 [ 24.826319] SyS_write+0xef/0x220 [ 24.826324] ? __do_page_fault+0x3d6/0xc90 [ 24.826330] ? SyS_read+0x220/0x220 [ 24.826337] ? do_fast_syscall_32+0x156/0xf9d [ 24.826342] ? SyS_read+0x220/0x220 [ 24.826347] do_fast_syscall_32+0x3ee/0xf9d [ 24.826355] ? do_int80_syscall_32+0x9d0/0x9d0 [ 24.826360] ? kasan_check_read+0x11/0x20 [ 24.826368] ? syscall_return_slowpath+0x550/0x550 [ 24.826375] ? SyS_rt_sigaction+0x94/0x1b0 [ 24.826380] ? SyS_sigprocmask+0x4b0/0x4b0 [ 24.826386] ? retint_user+0x18/0x18 [ 24.826393] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.826401] entry_SYSENTER_compat+0x54/0x63 [ 24.826404] RIP: 0023:0xf7ff6c79 [ 24.826406] RSP: 002b:00000000ffe1d74c EFLAGS: 00000282 ORIG_RAX: 0000000000000004 [ 24.826410] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020fd3000 [ 24.826412] RDX: 0000000000000026 RSI: 00000000080ea00c RDI: 000000000000003f [ 24.826414] RBP: 0000000000001000 R08: 0000000000000000 R09: 0000000000000000 [ 24.826416] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 24.826418] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 24.826427] Code: 89 85 58 ff ff ff 41 0f b6 55 01 c0 ea 04 0f b6 d2 4d 8d 34 d4 4c 89 f2 48 c1 ea 03 80 3c 1a 00 0f 85 8a 1c 00 00 41 8b 0e 31 d2 <48> f7 f1 48 89 85 58 ff ff ff 41 0f b6 45 01 83 e0 0f 4d 8d 34 [ 24.826497] RIP: ___bpf_prog_run+0x3b6a/0x5ec0 RSP: ffff8801bf836dd0 [ 24.826535] ---[ end trace 9c9e68e717191185 ]--- [ 24.826538] Kernel panic - not syncing: Fatal exception [ 24.830738] Dumping ftrace buffer: [ 24.830741] (ftrace buffer empty) [ 24.830746] Kernel Offset: disabled [ 25.370023] Rebooting in 86400 seconds..