[ 40.611657][ T26] audit: type=1800 audit(1546822489.983:25): pid=7840 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 40.641012][ T26] audit: type=1800 audit(1546822489.983:26): pid=7840 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 40.674931][ T26] audit: type=1800 audit(1546822489.983:27): pid=7840 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] startpar: service(s) returned failure: rsyslog ...[?25l[?1c7[FAIL8[?25h[?0c failed! Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.37' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 53.340049][ T8014] INFO: trying to register non-static key. [ 53.345855][ T8014] the code is fine but needs lockdep annotation. [ 53.352149][ T8014] turning off the locking correctness validator. [ 53.358452][ T8014] CPU: 1 PID: 8014 Comm: syz-executor399 Not tainted 4.20.0-next-20190103 #5 [ 53.367175][ T8014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.377215][ T8014] Call Trace: [ 53.380481][ T8014] dump_stack+0x1db/0x2d0 [ 53.384818][ T8014] ? dump_stack_print_info.cold+0x20/0x20 [ 53.390515][ T8014] ? vprintk_func+0x86/0x189 [ 53.395079][ T8014] register_lock_class+0x19dc/0x1e60 [ 53.400336][ T8014] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 53.406032][ T8014] ? bpf_prog_kallsyms_find+0xca/0x4b0 [ 53.411476][ T8014] ? check_noncircular+0x20/0x20 [ 53.416390][ T8014] ? module_enable_ro.part.0+0xe0/0xe0 [ 53.421823][ T8014] ? __bpf_trace_xdp_cpumap_enqueue+0x40/0x40 [ 53.427992][ T8014] ? check_preemption_disabled+0x48/0x290 [ 53.433684][ T8014] ? lock_downgrade+0x910/0x910 [ 53.438508][ T8014] ? check_noncircular+0x20/0x20 [ 53.443421][ T8014] ? rcu_read_unlock_special+0x380/0x380 [ 53.449040][ T8014] ? check_noncircular+0x20/0x20 [ 53.453953][ T8014] ? print_usage_bug+0xd0/0xd0 [ 53.458691][ T8014] ? is_bpf_text_address+0xd3/0x170 [ 53.463862][ T8014] ? kernel_text_address+0x73/0xf0 [ 53.468960][ T8014] ? __kernel_text_address+0xd/0x40 [ 53.474133][ T8014] __lock_acquire+0x149/0x4a10 [ 53.478869][ T8014] ? print_usage_bug+0xd0/0xd0 [ 53.483610][ T8014] ? print_usage_bug+0xd0/0xd0 [ 53.488347][ T8014] ? add_lock_to_list.isra.0+0x1c9/0x450 [ 53.493956][ T8014] ? mark_held_locks+0x100/0x100 [ 53.498865][ T8014] ? __lock_acquire+0x572/0x4a10 [ 53.503771][ T8014] ? __lock_acquire+0x24ed/0x4a10 [ 53.508768][ T8014] ? trace_hardirqs_off_caller+0x300/0x300 [ 53.514546][ T8014] ? mark_held_locks+0x100/0x100 [ 53.519456][ T8014] ? mark_held_locks+0x100/0x100 [ 53.524383][ T8014] ? mark_held_locks+0x100/0x100 [ 53.529291][ T8014] ? mark_held_locks+0x100/0x100 [ 53.534208][ T8014] ? add_lock_to_list.isra.0+0x450/0x450 [ 53.539810][ T8014] ? add_lock_to_list.isra.0+0x450/0x450 [ 53.545435][ T8014] ? print_usage_bug+0xd0/0xd0 [ 53.550174][ T8014] ? try_wait_for_completion+0x146/0x190 [ 53.555777][ T8014] lock_acquire+0x1db/0x570 [ 53.560254][ T8014] ? __flush_work+0x762/0xa20 [ 53.564918][ T8014] ? lock_release+0xc40/0xc40 [ 53.569566][ T8014] ? try_wait_for_completion+0x146/0x190 [ 53.575173][ T8014] ? trace_hardirqs_off_caller+0x300/0x300 [ 53.580966][ T8014] ? lockdep_hardirqs_on+0x415/0x5d0 [ 53.586223][ T8014] __flush_work+0x787/0xa20 [ 53.590715][ T8014] ? __flush_work+0x762/0xa20 [ 53.595370][ T8014] ? insert_work+0x620/0x620 [ 53.599933][ T8014] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.606146][ T8014] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.612363][ T8014] ? check_preemption_disabled+0x48/0x290 [ 53.618056][ T8014] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.624267][ T8014] ? refcount_sub_and_test_checked+0x1f4/0x2e0 [ 53.630422][ T8014] ? refcount_dec_if_one+0x180/0x180 [ 53.635686][ T8014] ? __drm_atomic_helper_crtc_destroy_state+0xf3/0x340 [ 53.642508][ T8014] flush_work+0x18/0x20 [ 53.646638][ T8014] vkms_atomic_crtc_destroy_state+0x2d/0x40 [ 53.652506][ T8014] drm_atomic_state_default_clear+0x37c/0xd60 [ 53.658549][ T8014] drm_atomic_state_clear+0x9d/0xc0 [ 53.663721][ T8014] __drm_atomic_state_free+0x3c/0xf0 [ 53.668978][ T8014] drm_atomic_helper_set_config+0xe5/0x160 [ 53.674760][ T8014] drm_mode_setcrtc+0x73c/0x1870 [ 53.679677][ T8014] ? drm_mode_getcrtc+0x870/0x870 [ 53.684674][ T8014] ? drm_unbind_agp+0x20/0x20 [ 53.689327][ T8014] ? drm_unbind_agp+0x20/0x20 [ 53.693982][ T8014] ? drm_dev_unregister+0x480/0x480 [ 53.699159][ T8014] ? drm_lease_owner+0x45/0x60 [ 53.703897][ T8014] ? drm_is_current_master+0x5c/0x140 [ 53.709243][ T8014] drm_ioctl_kernel+0x278/0x340 [ 53.714071][ T8014] ? drm_mode_getcrtc+0x870/0x870 [ 53.719070][ T8014] ? drm_setversion+0x8c0/0x8c0 [ 53.723896][ T8014] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.730108][ T8014] ? _copy_from_user+0xdd/0x150 [ 53.734934][ T8014] drm_ioctl+0x592/0xb50 [ 53.739164][ T8014] ? drm_mode_getcrtc+0x870/0x870 [ 53.744175][ T8014] ? drm_version+0x3d0/0x3d0 [ 53.748739][ T8014] ? trace_hardirqs_on_caller+0x310/0x310 [ 53.754435][ T8014] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.760665][ T8014] ? check_preemption_disabled+0x48/0x290 [ 53.766365][ T8014] ? drm_version+0x3d0/0x3d0 [ 53.770931][ T8014] do_vfs_ioctl+0x107b/0x17d0 [ 53.775587][ T8014] ? putname+0xef/0x130 [ 53.779731][ T8014] ? ioctl_preallocate+0x2f0/0x2f0 [ 53.784850][ T8014] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.791064][ T8014] ? __fget_light+0x2db/0x420 [ 53.795716][ T8014] ? fget_raw+0x20/0x20 [ 53.799878][ T8014] ? do_syscall_64+0x8c/0x800 [ 53.804542][ T8014] ? do_syscall_64+0x8c/0x800 [ 53.809188][ T8014] ? lockdep_hardirqs_on+0x415/0x5d0 [ 53.814447][ T8014] ? security_file_ioctl+0x93/0xc0 [ 53.819531][ T8014] ksys_ioctl+0xab/0xd0 [ 53.823662][ T8014] __x64_sys_ioctl+0x73/0xb0 [ 53.828225][ T8014] do_syscall_64+0x1a3/0x800 [ 53.832787][ T8014] ? syscall_return_slowpath+0x5f0/0x5f0 [ 53.838394][ T8014] ? prepare_exit_to_usermode+0x232/0x3b0 [ 53.844086][ T8014] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.849607][ T8014] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.855485][ T8014] RIP: 0033:0x443e59 [ 53.859358][ T8014] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b d8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 53.878933][ T8014] RSP: 002b:00007fff8894bd08 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 53.887321][ T8014] RAX: ffffffffffffffda RBX: 00000000004