[ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.89' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.448532] FAULT_INJECTION: forcing a failure. [ 27.448532] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 27.460456] CPU: 0 PID: 7971 Comm: syz-executor307 Not tainted 4.14.279-syzkaller #0 [ 27.468318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.477653] Call Trace: [ 27.480226] dump_stack+0x1b2/0x281 [ 27.483832] should_fail.cold+0x10a/0x149 [ 27.487956] __alloc_pages_nodemask+0x22c/0x2720 [ 27.492692] ? register_lock_class+0x1d0/0x1180 [ 27.497339] ? lock_downgrade+0x660/0x740 [ 27.501464] ? trace_hardirqs_on+0x10/0x10 [ 27.505680] ? static_obj+0x50/0x50 [ 27.509280] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 27.514096] ? kernel_text_address+0xbd/0xf0 [ 27.518515] ? __change_page_attr_set_clr+0x316/0x2280 [ 27.523770] ? lock_acquire+0x170/0x3f0 [ 27.527721] ? lock_downgrade+0x740/0x740 [ 27.531845] alloc_pages_current+0x155/0x260 [ 27.536230] ? do_raw_spin_unlock+0x164/0x220 [ 27.540710] __change_page_attr_set_clr+0x322/0x2280 [ 27.545805] ? slow_virt_to_phys+0x300/0x300 [ 27.550190] ? mark_held_locks+0xa6/0xf0 [ 27.554228] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 27.559305] ? __change_page_attr_set_clr+0x1952/0x2280 [ 27.564654] ? lock_acquire+0x170/0x3f0 [ 27.568612] ? lock_downgrade+0x740/0x740 [ 27.572753] __change_page_attr_set_clr+0x1a45/0x2280 [ 27.577930] ? slow_virt_to_phys+0x300/0x300 [ 27.582321] ? __mutex_unlock_slowpath+0x75/0x770 [ 27.587293] ? wait_for_completion_io+0x10/0x10 [ 27.591946] ? vm_unmap_aliases+0x3a5/0x460 [ 27.596246] change_page_attr_set_clr+0x2a2/0xa30 [ 27.601071] ? __change_page_attr_set_clr+0x2280/0x2280 [ 27.606414] ? debug_object_activate+0x490/0x490 [ 27.611150] ? kfree+0x14a/0x250 [ 27.614500] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 27.619499] set_memory_ro+0x68/0x80 [ 27.623190] ? _set_memory_wb+0x80/0x80 [ 27.627144] ? __bpf_prog_run64+0xb0/0xb0 [ 27.631278] bpf_prog_select_runtime+0x143/0x4e0 [ 27.636040] bpf_migrate_filter+0x242/0x2d0 [ 27.640433] ? __sk_attach_prog+0x360/0x360 [ 27.644735] ? seccomp_check_filter+0xba/0x170 [ 27.649298] ? hardlockup_detector_perf_cleanup+0x180/0x180 [ 27.654990] bpf_prepare_filter+0x14c/0x320 [ 27.659292] bpf_prog_create_from_user+0x1a7/0x290 [ 27.664201] ? hardlockup_detector_perf_cleanup+0x180/0x180 [ 27.669888] do_seccomp+0x31b/0x19c0 [ 27.673581] ? vfs_write+0x319/0x4d0 [ 27.677273] ? __seccomp_filter+0xdd0/0xdd0 [ 27.681573] ? SyS_write+0x14d/0x210 [ 27.685738] ? SyS_read+0x210/0x210 [ 27.689342] ? __do_page_fault+0x159/0xad0 [ 27.693551] ? do_syscall_64+0x4c/0x640 [ 27.697501] ? prctl_get_seccomp+0x50/0x50 [ 27.701710] do_syscall_64+0x1d5/0x640 [ 27.705582] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.710753] RIP: 0033:0x7ff59f9c2059 [ 27.714443] RSP: 002b:00007ffe93cddaa8 EFLAGS: 00000246 ORIG_RAX: 000000000000013d [ 27.722133] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff59f9c2059 [ 27.729377] RDX: 0000000020000ac0 RSI: 0000000000000000 RDI: 0000000000000001 [ 27.736624] RBP: 00007ffe93cddac0 R08: 0000000000000002 R09: 0000000000000001 [ 27.743872] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 27.751116] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 27.759074] ------------[ cut here ]------------ [ 27.763833] WARNING: CPU: 0 PID: 7971 at include/linux/filter.h:612 bpf_prog_select_runtime+0x3f1/0x4e0 [ 27.773358] Kernel panic - not syncing: panic_on_warn set ... [ 27.773358] [ 27.780711] CPU: 0 PID: 7971 Comm: syz-executor307 Not tainted 4.14.279-syzkaller #0 [ 27.788572] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.797906] Call Trace: [ 27.800479] dump_stack+0x1b2/0x281 [ 27.804083] panic+0x1f9/0x42d [ 27.807250] ? add_taint.cold+0x16/0x16 [ 27.811208] ? bpf_prog_select_runtime+0x3f1/0x4e0 [ 27.816125] ? bpf_prog_select_runtime+0x3f1/0x4e0 [ 27.821042] __warn.cold+0x20/0x44 [ 27.824565] ? ist_end_non_atomic+0x10/0x10 [ 27.828873] ? bpf_prog_select_runtime+0x3f1/0x4e0 [ 27.833787] report_bug+0x208/0x250 [ 27.837396] do_error_trap+0x195/0x2d0 [ 27.841261] ? math_error+0x2d0/0x2d0 [ 27.845041] ? __change_page_attr_set_clr+0x2280/0x2280 [ 27.850384] ? debug_object_activate+0x490/0x490 [ 27.855121] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.859944] invalid_op+0x1b/0x40 [ 27.863377] RIP: 0010:bpf_prog_select_runtime+0x3f1/0x4e0 [ 27.868886] RSP: 0018:ffff88809e2e7c88 EFLAGS: 00010297 [ 27.874228] RAX: ffff888093dc64c0 RBX: ffffffff815eb880 RCX: 0000000000000000 [ 27.881471] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 [ 27.888727] RBP: ffffc90001ab4000 R08: ffffffff8b9d64d0 R09: 0000000000000000 [ 27.895982] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b044dbc0 [ 27.903230] R13: ffffc90001ab4000 R14: ffff88809e2e7d38 R15: ffffc90001ab4000 [ 27.910492] ? __bpf_prog_run64+0xb0/0xb0 [ 27.914622] ? bpf_prog_select_runtime+0x3f1/0x4e0 [ 27.919532] bpf_migrate_filter+0x242/0x2d0 [ 27.923832] ? __sk_attach_prog+0x360/0x360 [ 27.928127] ? seccomp_check_filter+0xba/0x170 [ 27.932702] ? hardlockup_detector_perf_cleanup+0x180/0x180 [ 27.938388] bpf_prepare_filter+0x14c/0x320 [ 27.942683] bpf_prog_create_from_user+0x1a7/0x290 [ 27.947586] ? hardlockup_detector_perf_cleanup+0x180/0x180 [ 27.953273] do_seccomp+0x31b/0x19c0 [ 27.956963] ? vfs_write+0x319/0x4d0 [ 27.960660] ? __seccomp_filter+0xdd0/0xdd0 [ 27.964959] ? SyS_write+0x14d/0x210 [ 27.968649] ? SyS_read+0x210/0x210 [ 27.972250] ? __do_page_fault+0x159/0xad0 [ 27.976459] ? do_syscall_64+0x4c/0x640 [ 27.980494] ? prctl_get_seccomp+0x50/0x50 [ 27.984789] do_syscall_64+0x1d5/0x640 [ 27.988653] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.993818] RIP: 0033:0x7ff59f9c2059 [ 27.997509] RSP: 002b:00007ffe93cddaa8 EFLAGS: 00000246 ORIG_RAX: 000000000000013d [ 28.005199] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff59f9c2059 [ 28.012443] RDX: 0000000020000ac0 RSI: 0000000000000000 RDI: 0000000000000001 [ 28.019687] RBP: 00007ffe93cddac0 R08: 0000000000000002 R09: 0000000000000001 [ 28.026933] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 28.034176] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 28.041707] Kernel Offset: disabled [ 28.045356] Rebooting in 86400 seconds..