INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[ 5.428399] audit: type=1400 audit(1513738374.976:5): avc: denied { syslog } for pid=2982 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. [ 6.519414] audit: type=1400 audit(1513738376.067:6): avc: denied { map } for pid=3116 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-next-kasan-gce-6,10.128.15.200' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 12.309952] audit: type=1400 audit(1513738381.857:7): avc: denied { map } for pid=3130 comm="syzkaller232984" path="/root/syzkaller232984343" 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 [ 12.314840] BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 [ 12.315993] IP: page_mapping+0x13/0x130 [ 12.316523] PGD 213665067 P4D 213665067 PUD 20be08067 PMD 0 [ 12.317291] Oops: 0000 [#1] SMP [ 12.317735] Dumping ftrace buffer: [ 12.318225] (ftrace buffer empty) [ 12.318719] Modules linked in: [ 12.319149] CPU: 1 PID: 3130 Comm: syzkaller232984 Not tainted 4.15.0-rc3-next-20171214+ #67 [ 12.320265] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 12.321504] RIP: 0010:page_mapping+0x13/0x130 [ 12.322098] RSP: 0018:ffffc90001883b98 EFLAGS: 00010293 [ 12.322805] RAX: ffff88021362a5c0 RBX: 0000000000000000 RCX: ffffffff81378423 [ 12.323754] RDX: 0000000000000000 RSI: ffff880214d67800 RDI: 0000000000000000 [ 12.324718] RBP: ffffc90001883bb8 R08: 0000000000000000 R09: ffff880214d67a30 [ 12.325700] R10: 0000000000000000 R11: 0000000000000000 R12: ffff880214d67980 [ 12.326650] R13: ffff880214d67800 R14: ffff88020bda4c40 R15: ffff88021410ac30 [ 12.327601] FS: 0000000001b9c880(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 [ 12.328674] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 12.329447] CR2: 0000000000000020 CR3: 00000002137be002 CR4: 00000000001606e0 [ 12.330399] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 12.331393] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 12.332354] Call Trace: [ 12.332710] set_page_dirty+0x1b/0x150 [ 12.333231] rds_atomic_free_op+0x25/0x80 [ 12.333785] rds_message_put+0x174/0x1b0 [ 12.334338] rds_sendmsg+0x7ac/0xcb0 [ 12.334838] ? selinux_socket_sendmsg+0x1b/0x20 [ 12.335458] ? security_socket_sendmsg+0x5d/0x80 [ 12.336091] sock_sendmsg+0x51/0x70 [ 12.336576] ___sys_sendmsg+0x35e/0x3b0 [ 12.337125] ? __lru_cache_add+0x7c/0xb0 [ 12.337666] ? _raw_spin_unlock+0x22/0x30 [ 12.338308] ? __handle_mm_fault+0x2ec/0x1930 [ 12.338927] ? find_held_lock+0x35/0xa0 [ 12.339458] ? __fget_light+0x64/0xa0 [ 12.339975] ? __fdget+0x18/0x20 [ 12.340448] __sys_sendmsg+0x50/0x90 [ 12.340944] ? __sys_sendmsg+0x50/0x90 [ 12.341466] SyS_sendmsg+0x2d/0x50 [ 12.341942] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 12.342570] RIP: 0033:0x43fea9 [ 12.342998] RSP: 002b:00007ffc39499388 EFLAGS: 00000217 ORIG_RAX: 000000000000002e [ 12.344132] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fea9 [ 12.345111] RDX: 0000000000000000 RSI: 0000000020002000 RDI: 0000000000000003 [ 12.346062] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 12.347051] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401810 [ 12.347999] R13: 00000000004018a0 R14: 0000000000000000 R15: 0000000000000000 [ 12.348958] Code: 44 1f f4 ff 48 c7 c7 c8 58 a4 82 e8 b6 20 24 01 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 41 55 41 54 53 48 89 fb e8 1d 1f f4 ff <4c> 8b 63 20 41 f6 c4 01 0f 85 c8 00 00 00 e8 0a 1f f4 ff 4c 8b [ 12.351541] RIP: page_mapping+0x13/0x130 RSP: ffffc90001883b98 [ 12.352325] CR2: 0000000000000020 [ 12.352817] ---[ end trace c882cb8995009466 ]--- [ 12.353586] Kernel panic - not syncing: Fatal exception [ 12.354983] Dumping ftrace buffer: [ 12.355459] (ftrace buffer empty) [ 12.355954] Kernel Offset: disabled [ 12.356456] Rebooting in 86400 seconds..