[ 62.235833][ T26] audit: type=1800 audit(1558411340.228:25): pid=8961 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 62.280503][ T26] audit: type=1800 audit(1558411340.238:26): pid=8961 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 62.314141][ T26] audit: type=1800 audit(1558411340.238:27): pid=8961 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: ssh ...[?25l[?1c7[FAIL8[?25h[?0c failed! Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.16' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 70.487646][ T9137] ------------[ cut here ]------------ [ 70.493173][ T9137] DEBUG_LOCKS_WARN_ON(class_idx > MAX_LOCKDEP_KEYS) [ 70.493247][ T9137] WARNING: CPU: 0 PID: 9137 at kernel/locking/lockdep.c:3764 __lock_acquire+0x17b5/0x5490 [ 70.509690][ T9137] Kernel panic - not syncing: panic_on_warn set ... [ 70.516267][ T9137] CPU: 0 PID: 9137 Comm: syz-executor411 Not tainted 5.2.0-rc1+ #1 [ 70.524156][ T9137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.534204][ T9137] Call Trace: [ 70.537515][ T9137] dump_stack+0x172/0x1f0 [ 70.541840][ T9137] ? __lock_acquire+0x16d0/0x5490 [ 70.546857][ T9137] panic+0x2cb/0x744 [ 70.550768][ T9137] ? __warn_printk+0xf3/0xf3 [ 70.555361][ T9137] ? __lock_acquire+0x17b5/0x5490 [ 70.560403][ T9137] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.566672][ T9137] ? __warn.cold+0x5/0x4d [ 70.570995][ T9137] ? __warn+0xe8/0x1d0 [ 70.575092][ T9137] ? __lock_acquire+0x17b5/0x5490 [ 70.580107][ T9137] __warn.cold+0x20/0x4d [ 70.584340][ T9137] ? vprintk_emit+0x1ea/0x700 [ 70.589004][ T9137] ? __lock_acquire+0x17b5/0x5490 [ 70.594056][ T9137] report_bug+0x263/0x2b0 [ 70.598389][ T9137] do_error_trap+0x11b/0x200 [ 70.602973][ T9137] do_invalid_op+0x37/0x50 [ 70.607380][ T9137] ? __lock_acquire+0x17b5/0x5490 [ 70.612389][ T9137] invalid_op+0x14/0x20 [ 70.616528][ T9137] RIP: 0010:__lock_acquire+0x17b5/0x5490 [ 70.622138][ T9137] Code: d2 0f 85 c7 2c 00 00 44 8b 3d a7 a0 29 08 45 85 ff 0f 85 57 f3 ff ff 48 c7 c6 20 c1 6b 87 48 c7 c7 00 98 6b 87 e8 09 d5 eb ff <0f> 0b e9 40 f3 ff ff 0f 0b e9 83 f1 ff ff 8b 0d 47 88 0e 09 85 c9 [ 70.641725][ T9137] RSP: 0018:ffff88808ba873e0 EFLAGS: 00010086 [ 70.647775][ T9137] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 70.655757][ T9137] RDX: 0000000000000000 RSI: ffffffff815ac7e6 RDI: ffffed1011750e6e [ 70.663720][ T9137] RBP: ffff88808ba87588 R08: ffff888098492680 R09: fffffbfff11730e9 [ 70.671694][ T9137] R10: fffffbfff11730e8 R11: ffffffff88b98743 R12: 00000000767cd3fa [ 70.679667][ T9137] R13: 0000000000000000 R14: 00000000000413fa R15: 0000000000000000 [ 70.687659][ T9137] ? vprintk_func+0x86/0x189 [ 70.692244][ T9137] ? sock_diag_rcv+0x2b/0x40 [ 70.696822][ T9137] ? netlink_unicast+0x531/0x710 [ 70.701744][ T9137] ? netlink_sendmsg+0x8ae/0xd70 [ 70.706663][ T9137] ? sock_sendmsg+0xd7/0x130 [ 70.711238][ T9137] ? ___sys_sendmsg+0x803/0x920 [ 70.716074][ T9137] ? __sys_sendmsg+0x105/0x1d0 [ 70.721708][ T9137] ? __x64_sys_sendmsg+0x78/0xb0 [ 70.726639][ T9137] ? do_syscall_64+0xfd/0x680 [ 70.731308][ T9137] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 70.737377][ T9137] ? mark_held_locks+0xf0/0xf0 [ 70.742134][ T9137] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 70.747753][ T9137] ? find_held_lock+0x35/0x130 [ 70.752499][ T9137] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 70.758145][ T9137] lock_acquire+0x16f/0x3f0 [ 70.762646][ T9137] ? rhashtable_walk_enter+0xf9/0x390 [ 70.768015][ T9137] _raw_spin_lock+0x2f/0x40 [ 70.772513][ T9137] ? rhashtable_walk_enter+0xf9/0x390 [ 70.777885][ T9137] rhashtable_walk_enter+0xf9/0x390 [ 70.783072][ T9137] __tipc_dump_start+0x1fa/0x3c0 [ 70.788003][ T9137] tipc_dump_start+0x70/0x90 [ 70.792590][ T9137] __netlink_dump_start+0x4f8/0x7d0 [ 70.797768][ T9137] ? __tipc_dump_start+0x3c0/0x3c0 [ 70.802866][ T9137] tipc_sock_diag_handler_dump+0x1d9/0x270 [ 70.808651][ T9137] ? __tipc_diag_gen_cookie+0x90/0x90 [ 70.814008][ T9137] ? sock_diag_rcv+0x1c/0x40 [ 70.818591][ T9137] ? __tipc_dump_start+0x3c0/0x3c0 [ 70.823683][ T9137] ? tipc_unregister_sysctl+0x20/0x20 [ 70.829036][ T9137] ? tipc_ioctl+0x2e0/0x2e0 [ 70.833530][ T9137] sock_diag_rcv_msg+0x319/0x410 [ 70.838474][ T9137] netlink_rcv_skb+0x177/0x450 [ 70.844005][ T9137] ? sock_diag_bind+0x80/0x80 [ 70.848668][ T9137] ? netlink_ack+0xb50/0xb50 [ 70.853237][ T9137] ? kasan_check_read+0x11/0x20 [ 70.858174][ T9137] ? netlink_deliver_tap+0x254/0xbf0 [ 70.863441][ T9137] sock_diag_rcv+0x2b/0x40 [ 70.867839][ T9137] netlink_unicast+0x531/0x710 [ 70.872583][ T9137] ? netlink_attachskb+0x770/0x770 [ 70.877670][ T9137] ? _copy_from_iter_full+0x25d/0x8c0 [ 70.883197][ T9137] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 70.888898][ T9137] ? __check_object_size+0x3d/0x42f [ 70.894083][ T9137] netlink_sendmsg+0x8ae/0xd70 [ 70.898830][ T9137] ? netlink_unicast+0x710/0x710 [ 70.903762][ T9137] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 70.909287][ T9137] ? apparmor_socket_sendmsg+0x2a/0x30 [ 70.914727][ T9137] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.920943][ T9137] ? security_socket_sendmsg+0x8d/0xc0 [ 70.926379][ T9137] ? netlink_unicast+0x710/0x710 [ 70.931334][ T9137] sock_sendmsg+0xd7/0x130 [ 70.935742][ T9137] ___sys_sendmsg+0x803/0x920 [ 70.940411][ T9137] ? copy_msghdr_from_user+0x430/0x430 [ 70.945864][ T9137] ? prep_transhuge_page+0xa0/0xa0 [ 70.950976][ T9137] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.957204][ T9137] ? __handle_mm_fault+0x7cb/0x3eb0 [ 70.962391][ T9137] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.968613][ T9137] ? __fget_light+0x1a9/0x230 [ 70.973310][ T9137] ? __fdget+0x1b/0x20 [ 70.977365][ T9137] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 70.983586][ T9137] __sys_sendmsg+0x105/0x1d0 [ 70.988157][ T9137] ? __ia32_sys_shutdown+0x80/0x80 [ 70.993253][ T9137] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 70.998690][ T9137] ? do_syscall_64+0x26/0x680 [ 71.003362][ T9137] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 71.009422][ T9137] ? do_syscall_64+0x26/0x680 [ 71.014084][ T9137] __x64_sys_sendmsg+0x78/0xb0 [ 71.018828][ T9137] do_syscall_64+0xfd/0x680 [ 71.023316][ T9137] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 71.029195][ T9137] RIP: 0033:0x440209 [ 71.033087][ T9137] 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 71.052682][ T9137] RSP: 002b:00007ffc45940968 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 71.061082][ T9137] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440209 [ 71.069043][ T9137] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 [ 71.077026][ T9137] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 71.085004][ T9137] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a90 [ 71.092968][ T9137] R13: 0000000000401b20 R14: 0000000000000000 R15: 0000000000000000 [ 71.101898][ T9137] Kernel Offset: disabled [ 71.106224][ T9137] Rebooting in 86400 seconds..