[....] Starting enhanced syslogd: rsyslogd[ 11.807331] audit: type=1400 audit(1514594833.895:5): avc: denied { syslog } for pid=3046 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: [ 18.275769] audit: type=1400 audit(1514594840.363:6): avc: denied { map } for pid=3187 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 '10.128.0.4' (ECDSA) to the list of known hosts. executing program [ 24.408838] audit: type=1400 audit(1514594846.496:7): avc: denied { map } for pid=3201 comm="syzkaller001778" path="/root/syzkaller001778299" 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 [ 24.412482] IPv6: Can't replace route, no match found [ 24.412502] kasan: CONFIG_KASAN_INLINE enabled [ 24.412508] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.412515] general protection fault: 0000 [#1] SMP KASAN [ 24.412520] Dumping ftrace buffer: [ 24.412523] (ftrace buffer empty) [ 24.412525] Modules linked in: [ 24.412533] CPU: 0 PID: 3201 Comm: syzkaller001778 Not tainted 4.15.0-rc5+ #151 [ 24.412536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.412548] RIP: 0010:fib6_add+0x736/0x15a0 [ 24.412551] RSP: 0018:ffff8801c7626a70 EFLAGS: 00010202 [ 24.412557] RAX: dffffc0000000000 RBX: 0000000000000020 RCX: ffffffff84794465 [ 24.412561] RDX: 0000000000000004 RSI: ffff8801d38935f0 RDI: 0000000000000282 [ 24.412565] RBP: ffff8801c7626da0 R08: 1ffff10038ec4c35 R09: 0000000000000000 [ 24.412569] R10: ffff8801c7626c68 R11: 0000000000000000 R12: 00000000fffffffe [ 24.412572] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000009 [ 24.412577] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:0000000009b70840 [ 24.412581] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 24.412585] CR2: 0000000020be1000 CR3: 00000001d585a006 CR4: 00000000001606f0 [ 24.412591] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.412594] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.412596] Call Trace: [ 24.412612] ? fib6_force_start_gc+0xf0/0xf0 [ 24.412619] ? save_stack+0xa3/0xd0 [ 24.412626] ? save_stack+0x43/0xd0 [ 24.412630] ? kasan_kmalloc+0xad/0xe0 [ 24.412638] ? kmem_cache_alloc_trace+0x136/0x750 [ 24.412644] ? ip6_route_multipath_add+0x98d/0x16c0 [ 24.412649] ? inet6_rtm_newroute+0xdc/0x160 [ 24.412657] ? netlink_rcv_skb+0x21e/0x460 [ 24.412665] ? rtnetlink_rcv+0x1c/0x20 [ 24.412670] ? netlink_unicast+0x4e8/0x6f0 [ 24.412675] ? netlink_sendmsg+0xa4a/0xe60 [ 24.412682] ? sock_sendmsg+0xca/0x110 [ 24.412687] ? sock_write_iter+0x31a/0x5d0 [ 24.412693] ? do_iter_readv_writev+0x525/0x7f0 [ 24.412698] ? do_iter_write+0x154/0x540 [ 24.412702] ? compat_writev+0x225/0x420 [ 24.412707] ? do_compat_writev+0x115/0x220 [ 24.412712] ? compat_SyS_writev+0x26/0x30 [ 24.412720] ? do_fast_syscall_32+0x3ee/0xf9d [ 24.412726] ? entry_SYSENTER_compat+0x54/0x63 [ 24.412734] ? check_noncircular+0x20/0x20 [ 24.412742] ? print_irqtrace_events+0x270/0x270 [ 24.412749] ? __lock_is_held+0xb6/0x140 [ 24.412759] ? lock_acquire+0x1d5/0x580 [ 24.412764] ? lock_acquire+0x1d5/0x580 [ 24.412770] ? __ip6_ins_rt+0x56/0x90 [ 24.412777] ? ip6_convert_metrics+0x546/0x700 [ 24.412786] ? lock_release+0xa40/0xa40 [ 24.412793] ? dst_discard+0x50/0x50 [ 24.412804] ? ip6_route_multipath_add+0x98d/0x16c0 [ 24.412810] ? __ip6_ins_rt+0x56/0x90 [ 24.412821] __ip6_ins_rt+0x6c/0x90 [ 24.412831] ip6_route_multipath_add+0xd14/0x16c0 [ 24.412849] ? ip6_route_mpath_notify+0xd0/0xd0 [ 24.412862] ? lwtunnel_valid_encap_type_attr+0x196/0x210 [ 24.412871] ? rtm_to_fib6_config+0xdf0/0x1210 [ 24.412881] ? ip6_dst_gc+0x520/0x520 [ 24.412919] inet6_rtm_newroute+0xdc/0x160 [ 24.412926] ? inet6_rtm_newroute+0xdc/0x160 [ 24.412934] ? ip6_route_multipath_add+0x16c0/0x16c0 [ 24.412958] ? ip6_route_multipath_add+0x16c0/0x16c0 [ 24.412966] rtnetlink_rcv_msg+0x733/0x1020 [ 24.412978] ? validate_linkmsg+0x8e0/0x8e0 [ 24.412987] ? check_noncircular+0x20/0x20 [ 24.412996] ? find_held_lock+0x35/0x1d0 [ 24.413012] ? netlink_lookup+0x5f7/0xa90 [ 24.413019] ? lock_downgrade+0x980/0x980 [ 24.413027] ? find_held_lock+0x35/0x1d0 [ 24.413040] ? ip6_route_multipath_add+0x16c0/0x16c0 [ 24.413045] ? netlink_deliver_tap+0x148/0xcf0 [ 24.413052] ? lock_downgrade+0x980/0x980 [ 24.413061] ? lock_release+0xa40/0xa40 [ 24.413067] ? netlink_lookup+0x620/0xa90 [ 24.413078] ? ip6_route_multipath_add+0x16c0/0x16c0 [ 24.413091] ? netlink_deliver_tap+0x171/0xcf0 [ 24.413102] ? sock_has_perm+0x2a4/0x420 [ 24.413111] netlink_rcv_skb+0x21e/0x460 [ 24.413118] ? validate_linkmsg+0x8e0/0x8e0 [ 24.413125] ? netlink_ack+0xa10/0xa10 [ 24.413135] ? netlink_skb_destructor+0x1d0/0x1d0 [ 24.413147] rtnetlink_rcv+0x1c/0x20 [ 24.413154] netlink_unicast+0x4e8/0x6f0 [ 24.413165] ? netlink_attachskb+0x8a0/0x8a0 [ 24.413176] ? security_netlink_send+0x81/0xb0 [ 24.413185] netlink_sendmsg+0xa4a/0xe60 [ 24.413197] ? netlink_unicast+0x6f0/0x6f0 [ 24.413206] ? security_socket_sendmsg+0x89/0xb0 [ 24.413213] ? netlink_unicast+0x6f0/0x6f0 [ 24.413220] sock_sendmsg+0xca/0x110 [ 24.413229] sock_write_iter+0x31a/0x5d0 [ 24.413237] ? sock_sendmsg+0x110/0x110 [ 24.413251] ? bpf_fd_pass+0x280/0x280 [ 24.413258] ? __might_sleep+0x4c/0x190 [ 24.413267] do_iter_readv_writev+0x525/0x7f0 [ 24.413277] ? vfs_dedupe_file_range+0x8f0/0x8f0 [ 24.413288] ? rw_verify_area+0xe5/0x2b0 [ 24.413297] do_iter_write+0x154/0x540 [ 24.413304] ? iov_iter_get_pages+0x1150/0x1150 [ 24.413318] compat_writev+0x225/0x420 [ 24.413325] ? __fget_light+0x297/0x380 [ 24.413333] ? do_pwritev+0x1a0/0x1a0 [ 24.413341] ? find_held_lock+0x35/0x1d0 [ 24.413355] ? __do_page_fault+0x5f7/0xc90 [ 24.413369] ? __fdget_pos+0x130/0x190 [ 24.413376] ? __fdget_raw+0x20/0x20 [ 24.413381] ? down_read_trylock+0xdb/0x170 [ 24.413387] ? __do_page_fault+0x32d/0xc90 [ 24.413395] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 24.413404] do_compat_writev+0x115/0x220 [ 24.413409] ? do_compat_writev+0x115/0x220 [ 24.413417] ? compat_writev+0x420/0x420 [ 24.413432] compat_SyS_writev+0x26/0x30 [ 24.413438] ? compat_SyS_preadv2+0x90/0x90 [ 24.413445] do_fast_syscall_32+0x3ee/0xf9d [ 24.413456] ? do_int80_syscall_32+0x9d0/0x9d0 [ 24.413463] ? kasan_check_read+0x11/0x20 [ 24.413471] ? syscall_return_slowpath+0x550/0x550 [ 24.413479] ? SyS_rt_sigaction+0x94/0x1b0 [ 24.413487] ? SyS_sigprocmask+0x4b0/0x4b0 [ 24.413491] ? SyS_read+0x184/0x220 [ 24.413497] ? retint_user+0x18/0x18 [ 24.413508] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.413520] entry_SYSENTER_compat+0x54/0x63 [ 24.413524] RIP: 0023:0xf7f1fc79 [ 24.413527] RSP: 002b:00000000ffb61bfc EFLAGS: 00000203 ORIG_RAX: 0000000000000092 [ 24.413533] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000204aaff0 [ 24.413537] RDX: 0000000000000001 RSI: 0000000000000167 RDI: 0000000000000010 [ 24.413540] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 24.413543] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 24.413547] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 24.413560] Code: f1 a9 f6 fc e8 2c f2 e2 fc 85 c0 0f 85 d5 03 00 00 49 8d 5e 20 e8 db a9 f6 fc 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 5a 0c 00 00 4d 39 ee 4d 8b 7e 20 0f 95 c0 4c [ 24.413673] RIP: fib6_add+0x736/0x15a0 RSP: ffff8801c7626a70 [ 24.413701] ---[ end trace 956c65133fcfff88 ]--- [ 24.413704] Kernel panic - not syncing: Fatal exception in interrupt [ 24.435190] Dumping ftrace buffer: [ 24.435193] (ftrace buffer empty) [ 24.435195] Kernel Offset: disabled [ 25.097895] Rebooting in 86400 seconds..