[ 39.769780][ T26] audit: type=1800 audit(1569226955.964:27): pid=7670 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 39.813961][ T26] audit: type=1800 audit(1569226955.964:28): pid=7670 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 40.509083][ T26] audit: type=1800 audit(1569226956.764:29): pid=7670 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 40.528407][ T26] audit: type=1800 audit(1569226956.764:30): pid=7670 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 '10.128.0.154' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 50.949465][ T7823] IPVS: ftp: loaded support on port[0] = 21 [ 50.982088][ T7825] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:935 [ 50.991496][ T7825] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 7825, name: syz-executor934 [ 51.000969][ T7825] 2 locks held by syz-executor934/7825: [ 51.006497][ T7825] #0: ffffffff88b01b50 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x83c/0xd40 [ 51.015377][ T7825] #1: ffff888097df2c80 (&(&sch->q.lock)->rlock){+...}, at: sfb_change+0x284/0xd30 [ 51.024709][ T7825] Preemption disabled at: [ 51.024718][ T7825] [] sfb_change+0x284/0xd30 [ 51.035220][ T7825] CPU: 1 PID: 7825 Comm: syz-executor934 Not tainted 5.3.0+ #0 [ 51.042745][ T7825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.052890][ T7825] Call Trace: [ 51.056162][ T7825] dump_stack+0x1d8/0x2f8 [ 51.060473][ T7825] ___might_sleep+0x448/0x5e0 [ 51.065137][ T7825] ? sfb_change+0x284/0xd30 [ 51.069615][ T7825] ? __kasan_check_read+0x11/0x20 [ 51.074621][ T7825] __might_sleep+0x8f/0x100 [ 51.079105][ T7825] __mutex_lock_common+0x4e/0x2820 [ 51.084196][ T7825] ? fifo_create_dflt+0x1cf/0x290 [ 51.089196][ T7825] ? sfb_change+0x197/0xd30 [ 51.093676][ T7825] ? tc_modify_qdisc+0x184d/0x1ea0 [ 51.098763][ T7825] ? rtnetlink_rcv_msg+0x889/0xd40 [ 51.103848][ T7825] ? netlink_rcv_skb+0x19e/0x3d0 [ 51.108770][ T7825] ? rtnetlink_rcv+0x1c/0x20 [ 51.113340][ T7825] ? tcf_chain0_head_change_cb_del+0x30/0x390 [ 51.119390][ T7825] ? netlink_sendmsg+0x993/0xc50 [ 51.124299][ T7825] ? ___sys_sendmsg+0x60d/0x910 [ 51.129129][ T7825] ? __lock_acquire+0xc75/0x1be0 [ 51.134043][ T7825] ? mark_lock+0x107/0x1650 [ 51.138528][ T7825] mutex_lock_nested+0x1b/0x30 [ 51.143272][ T7825] tcf_chain0_head_change_cb_del+0x30/0x390 [ 51.149138][ T7825] ? __kasan_check_read+0x11/0x20 [ 51.154149][ T7825] tcf_block_put_ext+0x3d/0x2a0 [ 51.158974][ T7825] tcf_block_put+0x6e/0x90 [ 51.163398][ T7825] sfb_destroy+0x47/0x70 [ 51.167613][ T7825] ? sfb_reset+0x180/0x180 [ 51.172003][ T7825] qdisc_destroy+0x147/0x4d0 [ 51.176570][ T7825] qdisc_put+0x5d/0x90 [ 51.180611][ T7825] sfb_change+0x52d/0xd30 [ 51.184919][ T7825] ? nla_strcmp+0xd2/0x120 [ 51.189307][ T7825] ? sfb_destroy+0x70/0x70 [ 51.193702][ T7825] tc_modify_qdisc+0x184d/0x1ea0 [ 51.198626][ T7825] ? rcu_lock_release+0x30/0x30 [ 51.203464][ T7825] rtnetlink_rcv_msg+0x889/0xd40 [ 51.208387][ T7825] ? rcu_lock_release+0x9/0x30 [ 51.213128][ T7825] ? rcu_lock_release+0x9/0x30 [ 51.217870][ T7825] ? rcu_lock_release+0x9/0x30 [ 51.222609][ T7825] netlink_rcv_skb+0x19e/0x3d0 [ 51.227356][ T7825] ? rtnetlink_bind+0x80/0x80 [ 51.232010][ T7825] rtnetlink_rcv+0x1c/0x20 [ 51.236401][ T7825] netlink_unicast+0x787/0x900 [ 51.241144][ T7825] netlink_sendmsg+0x993/0xc50 [ 51.245896][ T7825] ? netlink_getsockopt+0x9f0/0x9f0 [ 51.251076][ T7825] ___sys_sendmsg+0x60d/0x910 [ 51.255738][ T7825] ? rcu_lock_release+0xd/0x30 [ 51.260481][ T7825] ? rcu_lock_release+0x26/0x30 [ 51.265303][ T7825] ? __fget+0x4e6/0x510 [ 51.269436][ T7825] ? __fdget+0x17c/0x200 [ 51.273652][ T7825] __x64_sys_sendmsg+0x17c/0x200 [ 51.278569][ T7825] do_syscall_64+0xf7/0x1c0 [ 51.283062][ T7825] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.288936][ T7825] RIP: 0033:0x447769 [ 51.292816][ T7825] Code: e8 5c b5 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 ab 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 51.312406][ T7825] RSP: 002b:00007f2dda6f7db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 51.320794][ T7825] RAX: ffffffffffffffda RBX: 00000000006e29e8 RCX: 0000000000447769 [ 51.328742][ T7825] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000006 [ 51.336691][ T7825] RBP: 00000000006e29e0 R08: 0000000000000000 R09: 0000000000000000 executing program executing program executing program executing program executing program executing program executing program executing program [ 51.344639][ T7825] R10: 00000000ffffffff R11: 0000000000000246 R12: 00000000006e29ec [ 51.352583][ T7825] R13: 00007ffd425d047f R14: 00007f2dda6f89c0 R15: 0000000000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program