[ 71.073907][ T26] audit: type=1800 audit(1583395490.222:25): pid=9726 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 71.094126][ T26] audit: type=1800 audit(1583395490.222:26): pid=9726 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 71.151387][ T26] audit: type=1800 audit(1583395490.222:27): pid=9726 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. [ 71.772477][ T9795] sshd (9795) used greatest stack depth: 22824 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.190' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 82.790510][ T9879] IPVS: ftp: loaded support on port[0] = 21 [ 82.821955][ T9880] ------------[ cut here ]------------ [ 82.827681][ T9880] ODEBUG: activate active (active state 1) object type: rcu_head hint: 0x0 [ 82.836848][ T9880] WARNING: CPU: 1 PID: 9880 at lib/debugobjects.c:485 debug_print_object+0x168/0x250 [ 82.846291][ T9880] Kernel panic - not syncing: panic_on_warn set ... [ 82.852863][ T9880] CPU: 1 PID: 9880 Comm: syz-executor791 Not tainted 5.6.0-rc3-syzkaller #0 [ 82.861510][ T9880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.871546][ T9880] Call Trace: [ 82.874826][ T9880] dump_stack+0x197/0x210 [ 82.879139][ T9880] ? debug_print_object+0x80/0x250 [ 82.884229][ T9880] panic+0x2e3/0x75c [ 82.888106][ T9880] ? add_taint.cold+0x16/0x16 [ 82.892773][ T9880] ? __kasan_check_write+0x14/0x20 [ 82.897896][ T9880] ? __warn.cold+0x14/0x3e [ 82.902305][ T9880] ? __warn+0xd9/0x1cf [ 82.906374][ T9880] ? debug_print_object+0x168/0x250 [ 82.911659][ T9880] __warn.cold+0x2f/0x3e [ 82.915900][ T9880] ? debug_print_object+0x168/0x250 [ 82.921158][ T9880] report_bug+0x289/0x300 [ 82.925533][ T9880] do_error_trap+0x11b/0x200 [ 82.930112][ T9880] do_invalid_op+0x37/0x50 [ 82.934519][ T9880] ? debug_print_object+0x168/0x250 [ 82.939730][ T9880] invalid_op+0x23/0x30 [ 82.943869][ T9880] RIP: 0010:debug_print_object+0x168/0x250 [ 82.949668][ T9880] Code: dd 00 e7 91 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd 00 e7 91 88 48 c7 c7 60 dc 91 88 e8 07 6e 9f fd <0f> 0b 83 05 03 6c ff 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3 [ 82.969264][ T9880] RSP: 0018:ffffc900062670a0 EFLAGS: 00010282 [ 82.975306][ T9880] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 82.983275][ T9880] RDX: 0000000000000000 RSI: ffffffff815ebe46 RDI: fffff52000c4ce06 [ 82.991247][ T9880] RBP: ffffc900062670e0 R08: ffff8880924c0280 R09: ffffed1015d26659 [ 82.999235][ T9880] R10: ffffed1015d26658 R11: ffff8880ae9332c7 R12: 0000000000000001 [ 83.007193][ T9880] R13: ffffffff89bac220 R14: 0000000000000000 R15: 1ffff92000c4ce22 [ 83.015173][ T9880] ? vprintk_func+0x86/0x189 [ 83.019758][ T9880] debug_object_activate+0x346/0x470 [ 83.025025][ T9880] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 83.030811][ T9880] ? debug_object_init_on_stack+0x20/0x20 [ 83.036518][ T9880] ? mark_lock+0xc2/0x1220 [ 83.040908][ T9880] ? find_held_lock+0x35/0x130 [ 83.045756][ T9880] ? delayed_work_timer_fn+0x90/0x90 [ 83.051108][ T9880] call_rcu+0x2f/0x700 [ 83.055159][ T9880] ? trace_hardirqs_on+0x67/0x240 [ 83.060167][ T9880] queue_rcu_work+0x8a/0xa0 [ 83.064651][ T9880] ? __route4_delete_filter+0xe0/0xe0 [ 83.070071][ T9880] tcf_queue_work+0xd3/0x110 [ 83.074696][ T9880] route4_change+0x19e8/0x2250 [ 83.079479][ T9880] ? route4_destroy+0x850/0x850 [ 83.084320][ T9880] ? __kasan_check_write+0x14/0x20 [ 83.089437][ T9880] ? wait_for_completion+0x440/0x440 [ 83.094719][ T9880] ? route4_destroy+0x850/0x850 [ 83.099572][ T9880] tc_new_tfilter+0xb82/0x2480 [ 83.104339][ T9880] ? tc_del_tfilter+0x1560/0x1560 [ 83.109357][ T9880] ? __kasan_check_read+0x11/0x20 [ 83.114376][ T9880] ? __lock_acquire+0x8a0/0x4a00 [ 83.119294][ T9880] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.125522][ T9880] ? rtnetlink_rcv_msg+0x7e3/0xaf0 [ 83.130611][ T9880] ? find_held_lock+0x35/0x130 [ 83.135367][ T9880] ? rcu_read_lock_held_common+0x130/0x130 [ 83.141218][ T9880] ? tc_del_tfilter+0x1560/0x1560 [ 83.146287][ T9880] ? __kasan_check_read+0x11/0x20 [ 83.151425][ T9880] ? tc_del_tfilter+0x1560/0x1560 [ 83.156455][ T9880] rtnetlink_rcv_msg+0x824/0xaf0 [ 83.161387][ T9880] ? rtnl_bridge_getlink+0x910/0x910 [ 83.166666][ T9880] ? lock_downgrade+0x920/0x920 [ 83.171503][ T9880] ? netlink_deliver_tap+0x226/0xbf0 [ 83.176778][ T9880] ? find_held_lock+0x35/0x130 [ 83.181540][ T9880] netlink_rcv_skb+0x177/0x450 [ 83.186303][ T9880] ? rtnl_bridge_getlink+0x910/0x910 [ 83.191606][ T9880] ? netlink_ack+0xb50/0xb50 [ 83.196474][ T9880] ? __kasan_check_read+0x11/0x20 [ 83.201493][ T9880] ? netlink_deliver_tap+0x248/0xbf0 [ 83.206767][ T9880] rtnetlink_rcv+0x1d/0x30 [ 83.211179][ T9880] netlink_unicast+0x59e/0x7e0 [ 83.215928][ T9880] ? netlink_attachskb+0x870/0x870 [ 83.221028][ T9880] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 83.226726][ T9880] ? __check_object_size+0x3d/0x437 [ 83.231907][ T9880] netlink_sendmsg+0x91c/0xea0 [ 83.236675][ T9880] ? netlink_unicast+0x7e0/0x7e0 [ 83.241598][ T9880] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 83.247127][ T9880] ? apparmor_socket_sendmsg+0x2a/0x30 [ 83.252563][ T9880] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.258779][ T9880] ? security_socket_sendmsg+0x8d/0xc0 [ 83.264399][ T9880] ? netlink_unicast+0x7e0/0x7e0 [ 83.269316][ T9880] sock_sendmsg+0xd7/0x130 [ 83.273714][ T9880] ____sys_sendmsg+0x753/0x880 [ 83.278470][ T9880] ? kernel_sendmsg+0x50/0x50 [ 83.283129][ T9880] ? find_held_lock+0x35/0x130 [ 83.287917][ T9880] ___sys_sendmsg+0x100/0x170 [ 83.292613][ T9880] ? sendmsg_copy_msghdr+0x70/0x70 [ 83.297722][ T9880] ? __kasan_check_read+0x11/0x20 [ 83.302755][ T9880] ? __fget_files+0x359/0x520 [ 83.307424][ T9880] ? ksys_dup3+0x3e0/0x3e0 [ 83.311838][ T9880] ? __fget_light+0x1ad/0x270 [ 83.316499][ T9880] ? __fdget+0x1b/0x20 [ 83.320549][ T9880] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 83.326777][ T9880] __sys_sendmsg+0x105/0x1d0 [ 83.331367][ T9880] ? __sys_sendmsg_sock+0xc0/0xc0 [ 83.336375][ T9880] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 83.342340][ T9880] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 83.347777][ T9880] ? do_fast_syscall_32+0xd1/0xe16 [ 83.352870][ T9880] ? entry_SYSENTER_compat+0x70/0x7f [ 83.358141][ T9880] ? do_fast_syscall_32+0xd1/0xe16 [ 83.363243][ T9880] __ia32_compat_sys_sendmsg+0x7a/0xb0 [ 83.368684][ T9880] do_fast_syscall_32+0x27b/0xe16 [ 83.373712][ T9880] entry_SYSENTER_compat+0x70/0x7f [ 83.378800][ T9880] RIP: 0023:0xf7fa3e39 [ 83.382863][ T9880] Code: 1d 00 00 00 89 d3 5b 5e 5d c3 8b 04 24 c3 8b 1c 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 83.402663][ T9880] RSP: 002b:00000000f7f9e1ec EFLAGS: 00000246 ORIG_RAX: 0000000000000172 [ 83.411077][ T9880] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000280 [ 83.419152][ T9880] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 83.427112][ T9880] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 83.435065][ T9880] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 83.443028][ T9880] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 83.452555][ T9880] Kernel Offset: disabled [ 83.457041][ T9880] Rebooting in 86400 seconds..