[....] Starting enhanced syslogd: rsyslogd[ 12.063776] audit: type=1400 audit(1515665587.077:5): avc: denied { syslog } for pid=3359 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: [ 18.633181] audit: type=1400 audit(1515665593.646:6): avc: denied { map } for pid=3498 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 '10.128.0.14' (ECDSA) to the list of known hosts. [ 27.543093] audit: type=1400 audit(1515665602.556:7): avc: denied { map } for pid=3513 comm="syzkaller901506" path="/root/syzkaller901506780" 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 executing program [ 27.569496] audit: type=1400 audit(1515665602.559:8): avc: denied { sys_admin } for pid=3513 comm="syzkaller901506" 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 [ 27.598520] audit: type=1400 audit(1515665602.612:9): avc: denied { sys_chroot } for pid=3514 comm="syzkaller901506" 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 [ 27.623065] audit: type=1400 audit(1515665602.613:10): avc: denied { map_create } for pid=3514 comm="syzkaller901506" 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 [ 27.645813] audit: type=1400 audit(1515665602.613:11): avc: denied { map_read map_write } for pid=3514 comm="syzkaller901506" 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 [ 27.672098] kasan: CONFIG_KASAN_INLINE enabled [ 27.676728] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 27.684267] general protection fault: 0000 [#1] SMP KASAN [ 27.689783] Dumping ftrace buffer: [ 27.693289] (ftrace buffer empty) [ 27.696967] Modules linked in: [ 27.700131] CPU: 0 PID: 3514 Comm: syzkaller901506 Not tainted 4.15.0-rc7-mm1+ #53 [ 27.707802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.717128] RIP: 0010:__bpf_prog_put+0x8d/0x640 [ 27.721759] RSP: 0018:ffff8801bf137718 EFLAGS: 00010a02 [ 27.727088] RAX: 19340036e00001ba RBX: 0000000000000001 RCX: ffffffff817e69de [ 27.734323] RDX: 0000000000000000 RSI: 0000000000000001 RDI: c9a001b700000dba [ 27.741559] RBP: ffff8801bf1377f8 R08: 0000000000000000 R09: 0000000000000000 [ 27.748794] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff10037e26ee6 [ 27.756031] R13: ffff8801bf1377d0 R14: c9a001b700000dba R15: dffffc0000000000 [ 27.763269] FS: 0000000001955880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 27.771471] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.778099] CR2: 00000000204f9fe4 CR3: 0000000006822006 CR4: 00000000001606f0 [ 27.785345] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.792583] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.799819] Call Trace: [ 27.802375] ? bpf_prog_free_id.part.21+0x1f0/0x1f0 [ 27.807362] ? locks_remove_file+0x3fa/0x5a0 [ 27.811736] ? fcntl_setlk+0x10c0/0x10c0 [ 27.815764] bpf_prog_put+0x1a/0x20 [ 27.819945] prog_fd_array_put_ptr+0x15/0x20 [ 27.824322] bpf_fd_array_map_clear+0xd2/0x140 [ 27.828871] ? __bpf_map_put+0x2e0/0x2e0 [ 27.832898] bpf_map_put_uref+0x54/0x70 [ 27.836836] bpf_map_release+0x91/0xc0 [ 27.840691] __fput+0x327/0x7e0 [ 27.843939] ? fput+0x140/0x140 [ 27.847183] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 27.853037] ____fput+0x15/0x20 [ 27.856283] task_work_run+0x199/0x270 [ 27.860135] ? task_work_cancel+0x210/0x210 [ 27.864422] ? free_nsproxy+0x185/0x1f0 [ 27.868361] ? switch_task_namespaces+0xa2/0xc0 [ 27.872999] do_exit+0x9bb/0x1ad0 [ 27.876418] ? __pmd_alloc+0x4e0/0x4e0 [ 27.880280] ? vma_link+0xe9/0x170 [ 27.883787] ? mm_update_next_owner+0x930/0x930 [ 27.888423] ? find_held_lock+0x35/0x1d0 [ 27.892453] ? handle_mm_fault+0x2a0/0x930 [ 27.896656] ? find_held_lock+0x35/0x1d0 [ 27.900685] ? __do_page_fault+0x5f7/0xc90 [ 27.904886] ? lock_downgrade+0x980/0x980 [ 27.909002] ? down_read_trylock+0xdb/0x170 [ 27.913300] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 27.917847] ? vmacache_find+0x5f/0x280 [ 27.921787] ? vmacache_update+0xfe/0x130 [ 27.925904] ? up_read+0x1a/0x40 [ 27.929234] ? __do_page_fault+0x3d6/0xc90 [ 27.933436] ? mm_fault_error+0x2c0/0x2c0 [ 27.937556] ? do_page_fault+0xee/0x720 [ 27.941495] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 27.946999] ? __do_page_fault+0xc90/0xc90 [ 27.952772] do_group_exit+0x149/0x400 [ 27.957147] ? SyS_exit+0x30/0x30 [ 27.960566] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 27.965553] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 27.970284] SyS_exit_group+0x1d/0x20 [ 27.974057] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 27.978778] RIP: 0033:0x440a69 [ 27.981932] RSP: 002b:00000000007dff48 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7 [ 27.989614] RAX: ffffffffffffffda RBX: 00007ffe224e9f90 RCX: 0000000000440a69 [ 27.996851] RDX: 0000000000440a69 RSI: 000000000000002c RDI: 0000000000000001 [ 28.004088] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 28.011324] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000402240 [ 28.018559] R13: 00000000004022d0 R14: 0000000000000000 R15: 0000000000000000 [ 28.027631] 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 [ 28.046694] RIP: __bpf_prog_put+0x8d/0x640 RSP: ffff8801bf137718 [ 28.052875] ---[ end trace c096b46993fb3a03 ]--- [ 28.057621] Kernel panic - not syncing: Fatal exception [ 28.062976] Dumping ftrace buffer: [ 28.066484] (ftrace buffer empty) [ 28.070167] Kernel Offset: disabled [ 28.073761] Rebooting in 86400 seconds..