[....] Starting enhanced syslogd: rsyslogd[ 11.277748] audit: type=1400 audit(1515653031.925:5): avc: denied { syslog } for pid=3334 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: [ 18.371681] audit: type=1400 audit(1515653039.019:6): avc: denied { map } for pid=3474 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 '10.128.0.5' (ECDSA) to the list of known hosts. [ 46.449113] audit: type=1400 audit(1515653067.096:7): avc: denied { map } for pid=3491 comm="syzkaller498668" path="/root/syzkaller498668011" 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 [ 46.475096] audit: type=1400 audit(1515653067.099:8): avc: denied { sys_admin } for pid=3491 comm="syzkaller498668" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 executing program [ 46.504500] audit: type=1400 audit(1515653067.152:9): avc: denied { sys_chroot } for pid=3492 comm="syzkaller498668" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 46.529040] audit: type=1400 audit(1515653067.153:10): avc: denied { map_create } for pid=3492 comm="syzkaller498668" 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 [ 46.551787] audit: type=1400 audit(1515653067.153:11): avc: denied { map_read map_write } for pid=3492 comm="syzkaller498668" 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 [ 46.578160] kasan: CONFIG_KASAN_INLINE enabled [ 46.582775] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 46.590304] general protection fault: 0000 [#1] SMP KASAN [ 46.595809] Dumping ftrace buffer: [ 46.599315] (ftrace buffer empty) [ 46.602994] Modules linked in: [ 46.606503] CPU: 0 PID: 3492 Comm: syzkaller498668 Not tainted 4.15.0-rc7-mm1+ #53 [ 46.614174] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.623502] RIP: 0010:__bpf_prog_put+0x8d/0x640 [ 46.628134] RSP: 0018:ffff8801c0167718 EFLAGS: 00010a07 [ 46.633462] RAX: 11240037000001b7 RBX: 0000000000000001 RCX: ffffffff817e69de [ 46.640698] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 892001b800000da4 [ 46.647933] RBP: ffff8801c01677f8 R08: 0000000000000000 R09: 0000000000000000 [ 46.655169] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003802cee6 [ 46.662924] R13: ffff8801c01677d0 R14: 892001b800000da4 R15: dffffc0000000000 [ 46.670159] FS: 0000000001d1d880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 46.678347] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.684194] CR2: 0000000020000000 CR3: 0000000006822004 CR4: 00000000001606f0 [ 46.691429] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 46.698664] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 46.705899] Call Trace: [ 46.708454] ? bpf_prog_free_id.part.21+0x1f0/0x1f0 [ 46.713443] ? locks_remove_file+0x3fa/0x5a0 [ 46.719120] ? fcntl_setlk+0x10c0/0x10c0 [ 46.723147] bpf_prog_put+0x1a/0x20 [ 46.726742] prog_fd_array_put_ptr+0x15/0x20 [ 46.731113] bpf_fd_array_map_clear+0xd2/0x140 [ 46.735658] ? __bpf_map_put+0x2e0/0x2e0 [ 46.739682] bpf_map_put_uref+0x54/0x70 [ 46.743620] bpf_map_release+0x91/0xc0 [ 46.747472] __fput+0x327/0x7e0 [ 46.750718] ? fput+0x140/0x140 [ 46.753970] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 46.759821] ____fput+0x15/0x20 [ 46.763063] task_work_run+0x199/0x270 [ 46.766917] ? task_work_cancel+0x210/0x210 [ 46.771204] ? free_nsproxy+0x185/0x1f0 [ 46.775141] ? switch_task_namespaces+0xa2/0xc0 [ 46.779778] do_exit+0x9bb/0x1ad0 [ 46.783455] ? __pmd_alloc+0x4e0/0x4e0 [ 46.787308] ? vma_link+0xe9/0x170 [ 46.790816] ? mm_update_next_owner+0x930/0x930 [ 46.795450] ? find_held_lock+0x35/0x1d0 [ 46.799478] ? handle_mm_fault+0x2a0/0x930 [ 46.803681] ? find_held_lock+0x35/0x1d0 [ 46.808059] ? __do_page_fault+0x5f7/0xc90 [ 46.812258] ? lock_downgrade+0x980/0x980 [ 46.816374] ? down_read_trylock+0xdb/0x170 [ 46.820660] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 46.825204] ? vmacache_find+0x5f/0x280 [ 46.829142] ? vmacache_update+0xfe/0x130 [ 46.833261] ? up_read+0x1a/0x40 [ 46.836593] ? __do_page_fault+0x3d6/0xc90 [ 46.840797] ? mm_fault_error+0x2c0/0x2c0 [ 46.844915] ? do_page_fault+0xee/0x720 [ 46.848854] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 46.854356] ? __do_page_fault+0xc90/0xc90 [ 46.858559] do_group_exit+0x149/0x400 [ 46.862411] ? SyS_exit+0x30/0x30 [ 46.865830] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 46.870812] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 46.875534] SyS_exit_group+0x1d/0x20 [ 46.879307] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 46.884025] RIP: 0033:0x440a69 [ 46.887179] RSP: 002b:00000000007dff48 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7 [ 46.894851] RAX: ffffffffffffffda RBX: 00007ffea1a82f30 RCX: 0000000000440a69 [ 46.902084] RDX: 0000000000440a69 RSI: 000000000000002c RDI: 0000000000000001 [ 46.909316] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 46.916551] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000402240 [ 46.923786] R13: 00000000004022d0 R14: 0000000000000000 R15: 0000000000000000 [ 46.931028] Code: f2 f2 c7 40 08 f2 f2 f2 f2 c7 40 0c 00 f2 f2 f2 c7 40 10 f3 f3 f3 f3 e8 72 f9 f1 ff 49 8d 46 18 48 89 85 28 ff ff ff 48 c1 e8 03 <42> 80 3c 38 00 0f 85 44 05 00 00 49 8b 46 18 f0 ff 08 74 3b e8 [ 46.950089] RIP: __bpf_prog_put+0x8d/0x640 RSP: ffff8801c0167718 [ 46.956285] ---[ end trace 9956ba98b7d3a4d2 ]--- [ 46.961227] Kernel panic - not syncing: Fatal exception [ 46.966616] Dumping ftrace buffer: [ 46.970123] (ftrace buffer empty) [ 46.973801] Kernel Offset: disabled [ 46.977398] Rebooting in 86400 seconds..