[ 93.587690][ T27] audit: type=1800 audit(1582404592.866:25): pid=9814 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [ 94.518856][ T27] kauditd_printk_skb: 3 callbacks suppressed [ 94.518867][ T27] audit: type=1800 audit(1582404593.796:29): pid=9814 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 94.545057][ T27] audit: type=1800 audit(1582404593.796:30): pid=9814 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.50' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 104.794889][ T27] audit: type=1305 audit(1582404604.066:31): op=set audit_failure=2 old=1 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 104.808307][ T27] audit: type=1305 audit(1582404604.066:32): op=set audit_pid=0 old=0 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 104.821518][ T27] audit: type=1305 audit(1582404604.066:33): op=set audit_rate_limit=2 old=0 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 104.824473][ T9968] audit: audit_lost=1 audit_rate_limit=2 audit_backlog_limit=0 [ 104.835292][ T27] audit: type=1305 audit(1582404604.066:34): op=set audit_backlog_limit=0 old=64 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 104.842822][ T9968] Kernel panic - not syncing: audit: rate limit exceeded [ 104.842838][ T9968] CPU: 1 PID: 9968 Comm: syz-executor803 Not tainted 5.6.0-rc2-syzkaller #0 [ 104.842846][ T9968] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 104.842851][ T9968] Call Trace: [ 104.842902][ T9968] dump_stack+0x197/0x210 [ 104.842930][ T9968] panic+0x2e3/0x75c [ 104.860093][ T27] audit: type=1305 audit(1582404604.096:35): op=set audit_enabled=1 old=1 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 104.863744][ T9968] ? add_taint.cold+0x16/0x16 [ 104.872885][ T27] audit: type=1305 audit(1582404604.096:35): op=set audit_failure=2 old=2 auid=4294967295 ses=4294967295 subj==unconfined res=1 [ 104.882464][ T9968] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 104.882489][ T9968] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 104.882519][ T9968] ? audit_panic+0x24/0x70 [ 104.940565][ T9968] audit_panic.cold+0x32/0x32 [ 104.945237][ T9968] audit_log_lost+0x8b/0x180 [ 104.949811][ T9968] audit_log_end+0x23c/0x2b0 [ 104.954380][ T9968] audit_log_config_change+0xcc/0xf0 [ 104.959658][ T9968] audit_receive_msg+0x2246/0x28b0 [ 104.964759][ T9968] ? audit_log_feature_change.part.0+0x150/0x150 [ 104.971068][ T9968] ? mutex_trylock+0x2d0/0x2d0 [ 104.975814][ T9968] ? lock_downgrade+0x920/0x920 [ 104.980696][ T9968] audit_receive+0x114/0x230 [ 104.985278][ T9968] ? netlink_skb_set_owner_r+0x18e/0x200 [ 104.990920][ T9968] netlink_unicast+0x59e/0x7e0 [ 104.995669][ T9968] ? netlink_attachskb+0x870/0x870 [ 105.000763][ T9968] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 105.006464][ T9968] ? __check_object_size+0x3d/0x437 [ 105.011650][ T9968] netlink_sendmsg+0x91c/0xea0 [ 105.016410][ T9968] ? netlink_unicast+0x7e0/0x7e0 [ 105.021331][ T9968] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 105.026858][ T9968] ? apparmor_socket_sendmsg+0x2a/0x30 [ 105.032298][ T9968] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 105.038532][ T9968] ? security_socket_sendmsg+0x8d/0xc0 [ 105.043969][ T9968] ? netlink_unicast+0x7e0/0x7e0 [ 105.048912][ T9968] sock_sendmsg+0xd7/0x130 [ 105.053308][ T9968] ____sys_sendmsg+0x753/0x880 [ 105.058370][ T9968] ? kernel_sendmsg+0x50/0x50 [ 105.063140][ T9968] ? __kasan_check_read+0x11/0x20 [ 105.068164][ T9968] ___sys_sendmsg+0x100/0x170 [ 105.072853][ T9968] ? sendmsg_copy_msghdr+0x70/0x70 [ 105.077971][ T9968] ? do_huge_pmd_anonymous_page+0xceb/0x1a50 [ 105.083929][ T9968] ? __audit_syscall_entry+0x3f2/0x530 [ 105.089373][ T9968] ? find_held_lock+0x35/0x130 [ 105.094120][ T9968] ? __audit_syscall_entry+0x3f2/0x530 [ 105.099563][ T9968] ? lock_downgrade+0x920/0x920 [ 105.104395][ T9968] ? ktime_get_coarse_real_ts64+0xeb/0x2a0 [ 105.110175][ T9968] ? __audit_syscall_entry+0x3f2/0x530 [ 105.115609][ T9968] ? ktime_get_coarse_real_ts64+0xeb/0x2a0 [ 105.121392][ T9968] ? lockdep_hardirqs_on+0x421/0x5e0 [ 105.126690][ T9968] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 105.132918][ T9968] ? __fget_light+0x1ad/0x270 [ 105.137576][ T9968] ? __fdget+0x1b/0x20 [ 105.141622][ T9968] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 105.147848][ T9968] __sys_sendmsg+0x105/0x1d0 [ 105.152508][ T9968] ? __sys_sendmsg_sock+0xc0/0xc0 [ 105.157513][ T9968] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 105.163745][ T9968] ? syscall_trace_enter+0x466/0xe50 [ 105.169017][ T9968] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 105.174471][ T9968] ? do_syscall_64+0x26/0x790 [ 105.179138][ T9968] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 105.185182][ T9968] ? do_syscall_64+0x26/0x790 [ 105.189845][ T9968] __x64_sys_sendmsg+0x78/0xb0 [ 105.194590][ T9968] do_syscall_64+0xfa/0x790 [ 105.199090][ T9968] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 105.204960][ T9968] RIP: 0033:0x441239 [ 105.208837][ T9968] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 9b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 105.228420][ T9968] RSP: 002b:00007ffd97a48b98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 105.236815][ T9968] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441239 [ 105.244799][ T9968] RDX: 0000000000000000 RSI: 00000000200006c0 RDI: 0000000000000003 [ 105.252750][ T9968] RBP: 0000000000019937 R08: 00000000004002c8 R09: 00000000004002c8 [ 105.260700][ T9968] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000402060 [ 105.268648][ T9968] R13: 00000000004020f0 R14: 0000000000000000 R15: 0000000000000000 [ 105.277796][ T9968] Kernel Offset: disabled [ 105.282179][ T9968] Rebooting in 86400 seconds..