[....] Starting enhanced syslogd: rsyslogd[ 10.810619] audit: type=1400 audit(1514590522.663:5): avc: denied { syslog } for pid=3031 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 file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 17.239962] audit: type=1400 audit(1514590529.092:6): avc: denied { map } for pid=3172 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 '10.128.15.201' (ECDSA) to the list of known hosts. executing program [ 23.405609] audit: type=1400 audit(1514590535.258:7): avc: denied { map } for pid=3186 comm="syzkaller745013" path="/root/syzkaller745013679" 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 [ 23.408678] IPv6: NLM_F_CREATE should be specified when creating new route [ 23.408736] IPv6: Can't replace route, no match found [ 23.408750] kasan: CONFIG_KASAN_INLINE enabled [ 23.408753] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 23.408759] general protection fault: 0000 [#1] SMP KASAN [ 23.408763] Dumping ftrace buffer: [ 23.408766] (ftrace buffer empty) [ 23.408767] Modules linked in: [ 23.408773] CPU: 0 PID: 3186 Comm: syzkaller745013 Not tainted 4.15.0-rc5+ #151 [ 23.408776] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.408786] RIP: 0010:fib6_add+0x736/0x15a0 [ 23.408788] RSP: 0018:ffff8801c7e5ea70 EFLAGS: 00010202 [ 23.408792] RAX: dffffc0000000000 RBX: 0000000000000020 RCX: ffffffff84794465 [ 23.408794] RDX: 0000000000000004 RSI: ffff8801c8c30330 RDI: 0000000000000282 [ 23.408797] RBP: ffff8801c7e5eda0 R08: 1ffff10038fcbc35 R09: 0000000000000000 [ 23.408799] R10: ffff8801c7e5ec68 R11: 0000000000000000 R12: 00000000fffffffe [ 23.408801] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000009 [ 23.408805] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:0000000008503840 [ 23.408807] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 23.408809] CR2: 00000000204db000 CR3: 00000001c8e0e002 CR4: 00000000001606f0 [ 23.408814] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.408816] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.408817] Call Trace: [ 23.408828] ? fib6_force_start_gc+0xf0/0xf0 [ 23.408833] ? save_stack+0xa3/0xd0 [ 23.408837] ? save_stack+0x43/0xd0 [ 23.408840] ? kasan_kmalloc+0xad/0xe0 [ 23.408846] ? kmem_cache_alloc_trace+0x136/0x750 [ 23.408850] ? ip6_route_multipath_add+0x98d/0x16c0 [ 23.408853] ? inet6_rtm_newroute+0xdc/0x160 [ 23.408859] ? netlink_rcv_skb+0x21e/0x460 [ 23.408865] ? rtnetlink_rcv+0x1c/0x20 [ 23.408868] ? netlink_unicast+0x4e8/0x6f0 [ 23.408871] ? netlink_sendmsg+0xa4a/0xe60 [ 23.408877] ? sock_sendmsg+0xca/0x110 [ 23.408880] ? sock_write_iter+0x31a/0x5d0 [ 23.408884] ? do_iter_readv_writev+0x525/0x7f0 [ 23.408887] ? do_iter_write+0x154/0x540 [ 23.408890] ? compat_writev+0x225/0x420 [ 23.408893] ? do_compat_writev+0x115/0x220 [ 23.408896] ? compat_SyS_writev+0x26/0x30 [ 23.408902] ? do_fast_syscall_32+0x3ee/0xf9d [ 23.408907] ? entry_SYSENTER_compat+0x54/0x63 [ 23.408914] ? check_noncircular+0x20/0x20 [ 23.408919] ? print_irqtrace_events+0x270/0x270 [ 23.408924] ? __lock_is_held+0xb6/0x140 [ 23.408930] ? lock_acquire+0x1d5/0x580 [ 23.408933] ? lock_acquire+0x1d5/0x580 [ 23.408937] ? __ip6_ins_rt+0x56/0x90 [ 23.408941] ? ip6_convert_metrics+0x546/0x700 [ 23.408947] ? lock_release+0xa40/0xa40 [ 23.408951] ? dst_discard+0x50/0x50 [ 23.408958] ? ip6_route_multipath_add+0x98d/0x16c0 [ 23.408962] ? __ip6_ins_rt+0x56/0x90 [ 23.408969] __ip6_ins_rt+0x6c/0x90 [ 23.408975] ip6_route_multipath_add+0xd14/0x16c0 [ 23.408987] ? ip6_route_mpath_notify+0xd0/0xd0 [ 23.408994] ? lwtunnel_valid_encap_type_attr+0x196/0x210 [ 23.409000] ? rtm_to_fib6_config+0xdf0/0x1210 [ 23.409009] ? ip6_dst_gc+0x520/0x520 [ 23.409033] inet6_rtm_newroute+0xdc/0x160 [ 23.409037] ? inet6_rtm_newroute+0xdc/0x160 [ 23.409042] ? ip6_route_multipath_add+0x16c0/0x16c0 [ 23.409058] ? ip6_route_multipath_add+0x16c0/0x16c0 [ 23.409063] rtnetlink_rcv_msg+0x733/0x1020 [ 23.409070] ? validate_linkmsg+0x8e0/0x8e0 [ 23.409076] ? check_noncircular+0x20/0x20 [ 23.409082] ? find_held_lock+0x35/0x1d0 [ 23.409090] ? netlink_lookup+0x5f7/0xa90 [ 23.409094] ? lock_downgrade+0x980/0x980 [ 23.409100] ? find_held_lock+0x35/0x1d0 [ 23.409107] ? ip6_route_multipath_add+0x16c0/0x16c0 [ 23.409110] ? netlink_deliver_tap+0x148/0xcf0 [ 23.409115] ? lock_downgrade+0x980/0x980 [ 23.409120] ? lock_release+0xa40/0xa40 [ 23.409124] ? netlink_lookup+0x620/0xa90 [ 23.409131] ? ip6_route_multipath_add+0x16c0/0x16c0 [ 23.409139] ? netlink_deliver_tap+0x171/0xcf0 [ 23.409149] ? sock_has_perm+0x2a4/0x420 [ 23.409155] netlink_rcv_skb+0x21e/0x460 [ 23.409160] ? validate_linkmsg+0x8e0/0x8e0 [ 23.409164] ? netlink_ack+0xa10/0xa10 [ 23.409170] ? netlink_skb_destructor+0x1d0/0x1d0 [ 23.409178] rtnetlink_rcv+0x1c/0x20 [ 23.409182] netlink_unicast+0x4e8/0x6f0 [ 23.409189] ? netlink_attachskb+0x8a0/0x8a0 [ 23.409196] ? security_netlink_send+0x81/0xb0 [ 23.409201] netlink_sendmsg+0xa4a/0xe60 [ 23.409209] ? netlink_unicast+0x6f0/0x6f0 [ 23.409215] ? security_socket_sendmsg+0x89/0xb0 [ 23.409219] ? netlink_unicast+0x6f0/0x6f0 [ 23.409224] sock_sendmsg+0xca/0x110 [ 23.409229] sock_write_iter+0x31a/0x5d0 [ 23.409234] ? sock_sendmsg+0x110/0x110 [ 23.409243] ? bpf_fd_pass+0x280/0x280 [ 23.409248] ? __might_sleep+0x4c/0x190 [ 23.409254] do_iter_readv_writev+0x525/0x7f0 [ 23.409260] ? vfs_dedupe_file_range+0x8f0/0x8f0 [ 23.409267] ? rw_verify_area+0xe5/0x2b0 [ 23.409273] do_iter_write+0x154/0x540 [ 23.409278] ? iov_iter_get_pages+0x1150/0x1150 [ 23.409286] compat_writev+0x225/0x420 [ 23.409291] ? __fget_light+0x297/0x380 [ 23.409295] ? do_pwritev+0x1a0/0x1a0 [ 23.409300] ? find_held_lock+0x35/0x1d0 [ 23.409310] ? __do_page_fault+0x5f7/0xc90 [ 23.409323] ? __fdget_pos+0x130/0x190 [ 23.409328] ? __fdget_raw+0x20/0x20 [ 23.409331] ? down_read_trylock+0xdb/0x170 [ 23.409335] ? __do_page_fault+0x32d/0xc90 [ 23.409341] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 23.409347] do_compat_writev+0x115/0x220 [ 23.409351] ? do_compat_writev+0x115/0x220 [ 23.409356] ? compat_writev+0x420/0x420 [ 23.409365] compat_SyS_writev+0x26/0x30 [ 23.409369] ? compat_SyS_preadv2+0x90/0x90 [ 23.409373] do_fast_syscall_32+0x3ee/0xf9d [ 23.409380] ? do_int80_syscall_32+0x9d0/0x9d0 [ 23.409384] ? kasan_check_read+0x11/0x20 [ 23.409389] ? syscall_return_slowpath+0x550/0x550 [ 23.409395] ? SyS_rt_sigaction+0x94/0x1b0 [ 23.409400] ? SyS_sigprocmask+0x4b0/0x4b0 [ 23.409403] ? SyS_read+0x184/0x220 [ 23.409406] ? retint_user+0x18/0x18 [ 23.409413] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 23.409420] entry_SYSENTER_compat+0x54/0x63 [ 23.409423] RIP: 0023:0xf7f13c79 [ 23.409425] RSP: 002b:00000000ffcaacbc EFLAGS: 00000203 ORIG_RAX: 0000000000000092 [ 23.409429] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000200c1000 [ 23.409431] RDX: 0000000000000001 RSI: 0000000000000167 RDI: 0000000000000010 [ 23.409433] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 23.409435] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 23.409437] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 23.409445] 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 [ 23.409513] RIP: fib6_add+0x736/0x15a0 RSP: ffff8801c7e5ea70 [ 23.409539] ---[ end trace 8cdac911242ada7b ]--- [ 23.409541] Kernel panic - not syncing: Fatal exception in interrupt [ 23.431500] Dumping ftrace buffer: [ 23.431503] (ftrace buffer empty) [ 23.431505] Kernel Offset: disabled [ 24.100998] Rebooting in 86400 seconds..