[....] Starting enhanced syslogd: rsyslogd[ 10.203387] audit: type=1400 audit(1514659254.577:5): avc: denied { syslog } for pid=2996 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 15.892050] audit: type=1400 audit(1514659260.265:6): avc: denied { map } for pid=3136 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 '10.128.15.232' (ECDSA) to the list of known hosts. [ 36.638384] audit: type=1400 audit(1514659281.012:7): avc: denied { map } for pid=3154 comm="syzkaller704210" path="/root/syzkaller704210676" 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 [ 36.640675] WARNING: CPU: 0 PID: 3154 at kernel/bpf/verifier.c:2359 adjust_ptr_min_max_vals+0x977/0x20a0 [ 36.640685] Kernel panic - not syncing: panic_on_warn set ... [ 36.640685] [ 36.640691] CPU: 0 PID: 3154 Comm: syzkaller704210 Not tainted 4.15.0-rc4-mm1+ #49 [ 36.640694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.640696] Call Trace: [ 36.640704] dump_stack+0x194/0x257 [ 36.640712] ? arch_local_irq_restore+0x53/0x53 [ 36.640722] ? vsnprintf+0x1ed/0x1900 [ 36.640732] panic+0x1e4/0x41c [ 36.640738] ? refcount_error_report+0x214/0x214 [ 36.640744] ? show_regs_print_info+0x18/0x18 [ 36.640755] ? __warn+0x1c1/0x200 [ 36.640763] ? adjust_ptr_min_max_vals+0x977/0x20a0 [ 36.640767] __warn+0x1dc/0x200 [ 36.640771] ? copy_verifier_state+0x3f0/0x590 [ 36.640776] ? adjust_ptr_min_max_vals+0x977/0x20a0 [ 36.640783] report_bug+0x211/0x2d0 [ 36.640795] fixup_bug.part.11+0x37/0x80 [ 36.640801] do_error_trap+0x2d7/0x3e0 [ 36.640808] ? print_irqtrace_events+0x270/0x270 [ 36.640815] ? math_error+0x400/0x400 [ 36.640824] ? verbose+0x1ab/0x590 [ 36.640836] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.640845] do_invalid_op+0x1b/0x20 [ 36.640851] invalid_op+0x22/0x40 [ 36.640855] RIP: 0010:adjust_ptr_min_max_vals+0x977/0x20a0 [ 36.640858] RSP: 0018:ffff8801c8c9f198 EFLAGS: 00010293 [ 36.640862] RAX: ffff8801c9854200 RBX: ffff8801c86b87c0 RCX: ffffffff817eec77 [ 36.640865] RDX: 0000000000000000 RSI: ffffc900016dc048 RDI: ffffc900016dc049 [ 36.640868] RBP: ffff8801c8c9f228 R08: 0000000000000000 R09: ffffffff858fa920 [ 36.640871] R10: 0000000000000071 R11: ffffffff858f9d00 R12: 0000000000000000 [ 36.640873] R13: 0000000000000001 R14: ffffc900016dc048 R15: ffff8801c8de4480 [ 36.640885] ? adjust_ptr_min_max_vals+0x977/0x20a0 [ 36.640895] ? adjust_ptr_min_max_vals+0x977/0x20a0 [ 36.640899] ? mark_reg_read+0x36e/0x530 [ 36.640915] do_check+0x67e0/0xae20 [ 36.640932] ? kfree+0xd6/0x260 [ 36.640936] ? bpf_prog_load+0x9a0/0x1b00 [ 36.640947] ? check_mem_access+0x28c0/0x28c0 [ 36.640953] ? check_noncircular+0x20/0x20 [ 36.640959] ? print_irqtrace_events+0x270/0x270 [ 36.640971] ? free_obj_work+0x690/0x690 [ 36.640980] ? __lock_is_held+0xb6/0x140 [ 36.640995] ? mark_held_locks+0xaf/0x100 [ 36.641000] ? kfree+0xf0/0x260 [ 36.641007] ? bpf_check+0x2b0e/0x49f0 [ 36.641013] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.641024] bpf_check+0x2b1b/0x49f0 [ 36.641030] ? ktime_get_with_offset+0x2c1/0x420 [ 36.641044] ? do_check+0xae20/0xae20 [ 36.641048] ? memset+0x31/0x40 [ 36.641055] ? bpf_obj_name_cpy+0x199/0x1f0 [ 36.641058] ? kasan_check_write+0x14/0x20 [ 36.641067] bpf_prog_load+0xa2a/0x1b00 [ 36.641076] ? bpf_prog_new_fd+0x50/0x50 [ 36.641084] ? avc_has_perm+0x4fb/0x680 [ 36.641088] ? avc_has_perm+0x43e/0x680 [ 36.641097] ? avc_has_perm_noaudit+0x520/0x520 [ 36.641106] ? __might_fault+0x110/0x1d0 [ 36.641112] ? lock_downgrade+0x980/0x980 [ 36.641122] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 36.641128] ? __check_object_size+0x25d/0x4f0 [ 36.641131] ? lru_cache_add_file+0x20/0x20 [ 36.641142] ? __might_sleep+0x95/0x190 [ 36.641150] ? selinux_bpf+0xc3/0x110 [ 36.641156] ? security_bpf+0x89/0xb0 [ 36.641164] SyS_bpf+0x1044/0x4420 [ 36.641174] ? bpf_prog_get+0x20/0x20 [ 36.641182] ? lock_release+0xa40/0xa40 [ 36.641192] ? do_raw_spin_trylock+0x190/0x190 [ 36.641207] ? _raw_spin_unlock+0x22/0x30 [ 36.641212] ? __handle_mm_fault+0x80e/0x3ce0 [ 36.641221] ? check_noncircular+0x20/0x20 [ 36.641225] ? __pmd_alloc+0x4e0/0x4e0 [ 36.641228] ? vma_link+0xe9/0x170 [ 36.641239] ? find_held_lock+0x35/0x1d0 [ 36.641251] ? handle_mm_fault+0x2a0/0x930 [ 36.641259] ? find_held_lock+0x35/0x1d0 [ 36.641273] ? __do_page_fault+0x5f7/0xc90 [ 36.641278] ? lock_downgrade+0x980/0x980 [ 36.641290] ? handle_mm_fault+0x476/0x930 [ 36.641294] ? down_read_trylock+0xdb/0x170 [ 36.641301] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 36.641304] ? vmacache_find+0x5f/0x280 [ 36.641315] ? up_read+0x1a/0x40 [ 36.641320] ? __do_page_fault+0x3d6/0xc90 [ 36.641332] ? mm_fault_error+0x2c0/0x2c0 [ 36.641347] ? do_page_fault+0xee/0x720 [ 36.641352] ? fget_raw+0x20/0x20 [ 36.641357] ? __do_page_fault+0xc90/0xc90 [ 36.641370] ? SyS_mmap_pgoff+0x243/0x5f0 [ 36.641384] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 36.641395] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 36.641399] RIP: 0033:0x43fe29 [ 36.641402] RSP: 002b:00007ffe02325ae8 EFLAGS: 00000286 ORIG_RAX: 0000000000000141 [ 36.641406] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fe29 [ 36.641409] RDX: 0000000000000048 RSI: 0000000020000000 RDI: 0000000000000005 [ 36.641411] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 36.641414] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000401790 [ 36.641416] R13: 0000000000401820 R14: 0000000000000000 R15: 0000000000000000 [ 36.664276] Dumping ftrace buffer: [ 36.664347] (ftrace buffer empty) [ 36.664350] Kernel Offset: disabled [ 37.139238] Rebooting in 86400 seconds..