bisecting fixing commit since 4abf26854aade9732a215a168205fa9fecd6149a building syzkaller on 9af51e31617374d564a98084b3848045bc026a0f testing commit 4abf26854aade9732a215a168205fa9fecd6149a with gcc (GCC) 8.1.0 kernel signature: 526a041e78f42675668d4130388c07992f5e43cb4f123b4dab876c0e4b04e121 all runs: crashed: possible deadlock in __sock_release testing current HEAD 675cc038067f0e530471c56a7442935f84669d95 testing commit 675cc038067f0e530471c56a7442935f84669d95 with gcc (GCC) 8.1.0 kernel signature: 0816246a4ea35ddc1f93dc21facc81a6e38c674f8f59894094245ee2764071ac all runs: crashed: possible deadlock in __sock_release revisions tested: 2, total time: 23m26.585530624s (build: 16m48.371991286s, test: 5m52.792750108s) the crash still happens on HEAD commit msg: Linux 4.19.167 crash: possible deadlock in __sock_release wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 vhci_hcd: stop threads vhci_hcd: release socket ====================================================== wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 WARNING: possible circular locking dependency detected 4.19.167-syzkaller #0 Not tainted ------------------------------------------------------ kworker/1:5/9976 is trying to acquire lock: 000000009c8bd8da (&sb->s_type->i_mutex_key#13){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] 000000009c8bd8da (&sb->s_type->i_mutex_key#13){+.+.}, at: __sock_release+0x7d/0x290 net/socket.c:578 but task is already holding lock: IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready 000000009995e1a6 ((delayed_fput_work).work){+.+.}, at: process_one_work+0x71b/0x15a0 kernel/workqueue.c:2130 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 ((delayed_fput_work).work){+.+.}: process_one_work+0x76c/0x15a0 kernel/workqueue.c:2131 worker_thread+0x85/0xb60 kernel/workqueue.c:2298 kthread+0x347/0x410 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 -> #2 ((wq_completion)"events"){+.+.}: flush_workqueue+0xf2/0x1350 kernel/workqueue.c:2663 flush_scheduled_work include/linux/workqueue.h:599 [inline] tipc_exit_net+0x37/0x60 net/tipc/core.c:100 ops_exit_list.isra.0+0x8b/0x120 net/core/net_namespace.c:153 cleanup_net+0x368/0x850 net/core/net_namespace.c:553 process_one_work+0x7b9/0x15a0 kernel/workqueue.c:2155 worker_thread+0x85/0xb60 kernel/workqueue.c:2298 kthread+0x347/0x410 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 -> #1 (pernet_ops_rwsem){++++}: down_write+0x38/0x90 kernel/locking/rwsem.c:70 unregister_netdevice_notifier+0x79/0x320 net/core/dev.c:1708 bcm_release+0x86/0x500 net/can/bcm.c:1525 __sock_release+0xc2/0x290 net/socket.c:579 sock_close+0x10/0x20 net/socket.c:1140 __fput+0x249/0x7f0 fs/file_table.c:278 ____fput+0x9/0x10 fs/file_table.c:309 task_work_run+0x108/0x180 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x185/0x1e0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x413/0x4e0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&sb->s_type->i_mutex_key#13){+.+.}: lock_acquire+0x180/0x3a0 kernel/locking/lockdep.c:3907 down_write+0x38/0x90 kernel/locking/rwsem.c:70 inode_lock include/linux/fs.h:748 [inline] __sock_release+0x7d/0x290 net/socket.c:578 sock_close+0x10/0x20 net/socket.c:1140 __fput+0x249/0x7f0 fs/file_table.c:278 delayed_fput+0x4b/0x70 fs/file_table.c:304 process_one_work+0x7b9/0x15a0 kernel/workqueue.c:2155 worker_thread+0x85/0xb60 kernel/workqueue.c:2298 kthread+0x347/0x410 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 other info that might help us debug this: Chain exists of: &sb->s_type->i_mutex_key#13 --> (wq_completion)"events" --> (delayed_fput_work).work Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock((delayed_fput_work).work); lock((wq_completion)"events"); lock((delayed_fput_work).work); lock(&sb->s_type->i_mutex_key#13); *** DEADLOCK *** 2 locks held by kworker/1:5/9976: #0: 0000000027b535fb ((wq_completion)"events"){+.+.}, at: process_one_work+0x6e8/0x15a0 kernel/workqueue.c:2126 #1: 000000009995e1a6 ((delayed_fput_work).work){+.+.}, at: process_one_work+0x71b/0x15a0 kernel/workqueue.c:2130 stack backtrace: CPU: 1 PID: 9976 Comm: kworker/1:5 Not tainted 4.19.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events delayed_fput wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x17c/0x22a lib/dump_stack.c:118 print_circular_bug.isra.17.cold.34+0x2e3/0x41e kernel/locking/lockdep.c:1221 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready check_prev_add kernel/locking/lockdep.c:1865 [inline] check_prevs_add kernel/locking/lockdep.c:1978 [inline] validate_chain kernel/locking/lockdep.c:2419 [inline] __lock_acquire+0x35bc/0x47c0 kernel/locking/lockdep.c:3415 vhci_hcd: disconnect device lock_acquire+0x180/0x3a0 kernel/locking/lockdep.c:3907 down_write+0x38/0x90 kernel/locking/rwsem.c:70 ieee80211 phy15: Selected rate control algorithm 'minstrel_ht' inode_lock include/linux/fs.h:748 [inline] __sock_release+0x7d/0x290 net/socket.c:578 sock_close+0x10/0x20 net/socket.c:1140 IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready __fput+0x249/0x7f0 fs/file_table.c:278 delayed_fput+0x4b/0x70 fs/file_table.c:304 process_one_work+0x7b9/0x15a0 kernel/workqueue.c:2155 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 worker_thread+0x85/0xb60 kernel/workqueue.c:2298 kthread+0x347/0x410 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 audit: type=1800 audit(1610732869.355:2): pid=9895 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="cgroup.controllers" dev="sda1" ino=15751 res=0 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: release socket vhci_hcd: connection reset by peer vhci_hcd: disconnect device vhci_hcd: vhci_device speed not set vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: vhci_device speed not set usb 15-1: new full-speed USB device number 2 using vhci_hcd vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(11) usb 15-1: enqueue for inactive port 0 vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(11) usb 15-1: enqueue for inactive port 0 vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) usb 15-1: enqueue for inactive port 0 vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: vhci_device speed not set vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: vhci_device speed not set vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: vhci_device speed not set vhci_hcd: release socket vhci_hcd: disconnect device audit: type=1800 audit(1610732870.475:3): pid=9953 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.1" name="cgroup.controllers" dev="sda1" ino=15771 res=0 usb 17-1: new full-speed USB device number 2 using vhci_hcd usb 17-1: enqueue for inactive port 0 usb 17-1: enqueue for inactive port 0 audit: type=1800 audit(1610732870.515:4): pid=9954 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="cgroup.controllers" dev="sda1" ino=15772 res=0 usb 17-1: enqueue for inactive port 0 vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: vhci_device speed not set vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) audit: type=1800 audit(1610732870.825:5): pid=10001 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.0" name="cgroup.controllers" dev="sda1" ino=15780 res=0 audit: type=1800 audit(1610732870.905:6): pid=9996 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="cgroup.controllers" dev="sda1" ino=15774 res=0 vhci_hcd: vhci_device speed not set vhci_hcd: vhci_device speed not set usb 11-1: new full-speed USB device number 2 using vhci_hcd audit: type=1800 audit(1610732870.965:7): pid=10002 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.4" name="cgroup.controllers" dev="sda1" ino=15784 res=0 vhci_hcd: connection closed vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: connection reset by peer vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: sendmsg failed!, ret=-32 for 48 vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device audit: type=1800 audit(1610732871.625:8): pid=10031 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.1" name="cgroup.controllers" dev="sda1" ino=15771 res=0 vhci_hcd vhci_hcd.0: pdev(3) rhport(1) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: vhci_device speed not set audit: type=1800 audit(1610732871.675:9): pid=10026 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="cgroup.controllers" dev="sda1" ino=15772 res=0 vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) audit: type=1800 audit(1610732871.985:10): pid=10054 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.4" name="cgroup.controllers" dev="sda1" ino=15783 res=0 audit: type=1800 audit(1610732872.035:11): pid=10050 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="cgroup.controllers" dev="sda1" ino=15775 res=0 vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: vhci_device speed not set vhci_hcd: vhci_device speed not set vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device usb 9-1: new full-speed USB device number 3 using vhci_hcd vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket usb 9-1: enqueue for inactive port 0 vhci_hcd: disconnect device usb 9-1: enqueue for inactive port 0 usb 9-1: enqueue for inactive port 0 vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) usb 17-1: enqueue for inactive port 0 usb 17-1: enqueue for inactive port 0 usb 17-1: enqueue for inactive port 0 vhci_hcd: vhci_device speed not set vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: vhci_device speed not set vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: vhci_device speed not set vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: connection closed vhci_hcd: disconnect device vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: vhci_device speed not set vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) usb 9-1: enqueue for inactive port 0 usb 9-1: enqueue for inactive port 0 vhci_hcd: connection closed vhci_hcd: stop threads usb 9-1: enqueue for inactive port 0 vhci_hcd: release socket vhci_hcd: disconnect device usb 19-1: enqueue for inactive port 0 usb 19-1: enqueue for inactive port 0 vhci_hcd: vhci_device speed not set vhci_hcd: vhci_device speed not set vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: vhci_device speed not set vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(5) rhport(1) sockfd(3) usb 13-1: enqueue for inactive port 0 vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) usb 13-1: enqueue for inactive port 0 vhci_hcd: vhci_device speed not set vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) kauditd_printk_skb: 13 callbacks suppressed audit: type=1800 audit(1610732874.506:25): pid=10168 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.1" name="cgroup.controllers" dev="sda1" ino=15768 res=0 vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) audit: type=1800 audit(1610732874.656:26): pid=10175 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="cgroup.controllers" dev="sda1" ino=15770 res=0 audit: type=1800 audit(1610732874.726:27): pid=10184 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="cgroup.controllers" dev="sda1" ino=15785 res=0 vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: vhci_device speed not set vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: release socket vhci_hcd: disconnect device usb 17-1: new full-speed USB device number 3 using vhci_hcd vhci_hcd: vhci_device speed not set usb 17-1: enqueue for inactive port 0 vhci_hcd: vhci_device speed not set usb 17-1: enqueue for inactive port 0 usb 17-1: enqueue for inactive port 0 vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: vhci_device speed not set vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) usb 19-1: enqueue for inactive port 0 usb 19-1: enqueue for inactive port 0 vhci_hcd: connection closed vhci_hcd: stop threads usb 19-1: enqueue for inactive port 0 vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: vhci_device speed not set vhci_hcd: release socket vhci_hcd: disconnect device audit: type=1800 audit(1610732875.346:28): pid=10201 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.0" name="cgroup.controllers" dev="sda1" ino=15751 res=0 vhci_hcd: vhci_device speed not set audit: type=1800 audit(1610732875.436:29): pid=10207 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.4" name="cgroup.controllers" dev="sda1" ino=15783 res=0 vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device audit: type=1800 audit(1610732875.626:30): pid=10199 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="cgroup.controllers" dev="sda1" ino=15784 res=0 audit: type=1800 audit(1610732875.746:31): pid=10218 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.1" name="cgroup.controllers" dev="sda1" ino=15768 res=0 vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: release socket vhci_hcd: disconnect device audit: type=1800 audit(1610732875.826:32): pid=10227 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="cgroup.controllers" dev="sda1" ino=15770 res=0 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: vhci_device speed not set audit: type=1800 audit(1610732875.856:33): pid=10234 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="cgroup.controllers" dev="sda1" ino=15789 res=0 vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: vhci_device speed not set vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) audit: type=1800 audit(1610732876.126:34): pid=10242 uid=0 auid=0 ses=8 subj==unconfined op=collect_data cause=failed comm="syz-executor.0" name="cgroup.controllers" dev="sda1" ino=15782 res=0 vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: vhci_device speed not set vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: vhci_device speed not set vhci_hcd: connection reset by peer vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: unlink cleanup rx 1 vhci_hcd: disconnect device usb 13-1: new full-speed USB device number 3 using vhci_hcd vhci_hcd: connection reset by peer vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: connection reset by peer vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: unlink cleanup rx 1 vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: vhci_device speed not set vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd: stop threads usb 9-1: new full-speed USB device number 4 using vhci_hcd vhci_hcd: release socket usb 9-1: enqueue for inactive port 0 vhci_hcd: disconnect device usb 9-1: enqueue for inactive port 0 usb 9-1: enqueue for inactive port 0 vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: vhci_device speed not set vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(1) rhport(1) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: vhci_device speed not set vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection reset by peer vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: connection reset by peer vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: vhci_device speed not set vhci_hcd: vhci_device speed not set usb 17-1: new full-speed USB device number 4 using vhci_hcd vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: release socket vhci_hcd: vhci_device speed not set vhci_hcd: disconnect device vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: connection reset by peer vhci_hcd: disconnect device vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device usb 19-2: new full-speed USB device number 4 using vhci_hcd vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: connection closed vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(0) rhport(1) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: connection reset by peer vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: release socket