[....] Starting enhanced syslogd: rsyslogd[ 5.028946] audit: type=1400 audit(1513743920.460:5): avc: denied { syslog } for pid=2977 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: [ 29.441459] audit: type=1400 audit(1513743944.873:6): avc: denied { map } for pid=3119 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 'ci-upstream-next-kasan-gce-8,10.128.0.31' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 35.236566] audit: type=1400 audit(1513743950.668:7): avc: denied { map } for pid=3132 comm="syzkaller267223" path="/root/syzkaller267223516" 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 [ 35.299179] BUG: unable to handle kernel NULL pointer dereference at (null) [ 35.307180] IP: irq_may_run+0x19/0x70 [ 35.310943] PGD 0 P4D 0 [ 35.313584] Oops: 0000 [#1] SMP [ 35.316830] Dumping ftrace buffer: [ 35.320335] (ftrace buffer empty) [ 35.324010] Modules linked in: [ 35.327168] CPU: 0 PID: 3177 Comm: kworker/u4:2 Not tainted 4.15.0-rc3-next-20171214+ #67 [ 35.335443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.344771] RIP: 0010:irq_may_run+0x19/0x70 [ 35.349056] RSP: 0018:ffff88021fc03f58 EFLAGS: 00010006 [ 35.354381] RAX: 0000000000000000 RBX: ffff8802151fa400 RCX: ffffffff81243385 [ 35.361616] RDX: 0000000000010000 RSI: 0000000000000000 RDI: ffff8802151fa400 [ 35.368860] RBP: ffff88021fc03f68 R08: 0000000000000001 R09: 000000000000000c [ 35.376093] R10: ffff88021fc03ee8 R11: 000000000000000c R12: 0000000000000001 [ 35.383326] R13: ffff8802151fa400 R14: 0000000000000027 R15: 0000000000000000 [ 35.390562] FS: 0000000000000000(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 [ 35.398750] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.404598] CR2: 0000000000000000 CR3: 000000000301e003 CR4: 00000000001606f0 [ 35.411834] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.419067] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.426300] Call Trace: [ 35.428846] [ 35.430964] handle_edge_irq+0x33/0x220 [ 35.434901] handle_irq+0x15/0x20 [ 35.438320] do_IRQ+0x53/0x100 [ 35.441476] common_interrupt+0xa9/0xa9 [ 35.445409] [ 35.447613] RIP: 0010:do_raw_read_lock+0x1a/0x50 [ 35.452329] RSP: 0018:ffffc900018ebe28 EFLAGS: 00000206 ORIG_RAX: ffffffffffffffd8 [ 35.459997] RAX: 0000000000000000 RBX: ffffffff830a5100 RCX: 0000000051c3f387 [ 35.467239] RDX: 0000000000001c96 RSI: 000000004477e779 RDI: ffffffff830a5100 [ 35.474471] RBP: ffffc900018ebe30 R08: 0000000000000001 R09: 0000000000000001 [ 35.481704] R10: ffffc900018ebdd0 R11: 0000000000000000 R12: ffff880213744900 [ 35.488937] R13: 00000000fffffff8 R14: ffffffff830a5100 R15: ffff880213744900 [ 35.496175] _raw_read_lock+0x35/0x40 [ 35.499938] ? search_binary_handler+0xa9/0x2d0 [ 35.504567] search_binary_handler+0xa9/0x2d0 [ 35.509026] do_execveat_common.isra.30+0x861/0xb90 [ 35.514007] ? kthread_delayed_work_timer_fn+0xe0/0xe0 [ 35.519247] do_execve+0x31/0x40 [ 35.522575] call_usermodehelper_exec_async+0x104/0x190 [ 35.527899] ? umh_complete+0x70/0x70 [ 35.531662] ret_from_fork+0x24/0x30 [ 35.535339] Code: 07 00 31 c0 5b 5d c3 90 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 54 53 48 89 fb 41 bc 01 00 00 00 e8 bb 6f 07 00 48 8b 43 38 00 00 00 0c 00 75 0d e8 aa 6f 07 00 44 89 e0 5b 41 5c 5d c3 [ 35.554374] RIP: irq_may_run+0x19/0x70 RSP: ffff88021fc03f58 [ 35.560134] CR2: 0000000000000000 [ 35.563555] ---[ end trace 733d3f531bf70369 ]--- [ 35.568276] Kernel panic - not syncing: Fatal exception in interrupt [ 35.575115] Dumping ftrace buffer: [ 35.578623] (ftrace buffer empty) [ 35.582298] Kernel Offset: disabled [ 35.585900] Rebooting in 86400 seconds..