bisecting fixing commit since 4abf26854aade9732a215a168205fa9fecd6149a building syzkaller on 9af51e31617374d564a98084b3848045bc026a0f testing commit 4abf26854aade9732a215a168205fa9fecd6149a with gcc (GCC) 8.4.1 20210217 kernel signature: e281a7ff963c18ad278759bfd18e4c54a64dac326d814ffdbb03015b8eb7bf01 all runs: crashed: possible deadlock in __sock_release testing current HEAD 2965db2e004cf9c92b87c1f559e9812c0ae878c1 testing commit 2965db2e004cf9c92b87c1f559e9812c0ae878c1 with gcc (GCC) 8.4.1 20210217 kernel signature: 8ec04c48e2a46e79432deb2b30efa6aed23f12f819e01dbfc91167ea94e458a3 all runs: crashed: possible deadlock in __sock_release revisions tested: 2, total time: 22m15.870518717s (build: 15m16.759672124s, test: 6m30.136180614s) the crash still happens on HEAD commit msg: Linux 4.19.188 crash: possible deadlock in __sock_release vhci_hcd: connection reset by peer vhci_hcd: stop threads vhci_hcd: release socket ====================================================== IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready WARNING: possible circular locking dependency detected 4.19.188-syzkaller #0 Not tainted ------------------------------------------------------ kworker/1:3/8314 is trying to acquire lock: 000000000ba38760 (&sb->s_type->i_mutex_key#13){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] 000000000ba38760 (&sb->s_type->i_mutex_key#13){+.+.}, at: __sock_release+0x7d/0x290 net/socket.c:578 but task is already holding lock: 00000000e9e8fedd ((delayed_fput_work).work){+.+.}, at: process_one_work+0x71b/0x15a0 kernel/workqueue.c:2127 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:2128 worker_thread+0x85/0xb60 kernel/workqueue.c:2295 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:2660 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:2152 worker_thread+0x85/0xb60 kernel/workqueue.c:2295 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:2152 worker_thread+0x85/0xb60 kernel/workqueue.c:2295 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/1:3/8314: #0: 0000000082f8aa49 ((wq_completion)"events"){+.+.}, at: process_one_work+0x6e8/0x15a0 kernel/workqueue.c:2123 #1: 00000000e9e8fedd ((delayed_fput_work).work){+.+.}, at: process_one_work+0x71b/0x15a0 kernel/workqueue.c:2127 stack backtrace: CPU: 1 PID: 8314 Comm: kworker/1:3 Not tainted 4.19.188-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events delayed_fput Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x17c/0x226 lib/dump_stack.c:118 print_circular_bug.isra.17.cold.34+0x2e3/0x41e kernel/locking/lockdep.c:1221 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+0x35c2/0x47c0 kernel/locking/lockdep.c:3415 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:2152 worker_thread+0x85/0xb60 kernel/workqueue.c:2295 kthread+0x347/0x410 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 vhci_hcd: disconnect device ieee80211 phy13: Selected rate control algorithm 'minstrel_ht' usb 9-1: new full-speed USB device number 2 using vhci_hcd wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 ieee80211 phy14: Selected rate control algorithm 'minstrel_ht' vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(11) wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 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(1619197881.756:2): pid=9832 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="cgroup.controllers" dev="sda1" ino=13904 res=0 vhci_hcd vhci_hcd.0: Device attached vhci_hcd vhci_hcd.0: Device attached IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready vhci_hcd: connection reset by peer vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready vhci_hcd: connection closed vhci_hcd: disconnect device wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 ieee80211 phy15: Selected rate control algorithm 'minstrel_ht' wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: stop threads wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 vhci_hcd: release socket IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready vhci_hcd: disconnect device wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 vhci_hcd: vhci_device speed not set IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 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: Device attached 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: Device attached 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: Device attached vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: vhci_device speed not set audit: type=1800 audit(1619197882.356:3): pid=9879 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.0" name="cgroup.controllers" dev="sda1" ino=13909 res=0 vhci_hcd: vhci_device speed not set usb 19-1: new full-speed USB device number 2 using vhci_hcd vhci_hcd: connection reset by peer vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device audit: type=1800 audit(1619197882.386:4): pid=9942 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.1" name="cgroup.controllers" dev="sda1" ino=13922 res=0 usb 17-1: new full-speed USB device number 2 using vhci_hcd audit: type=1800 audit(1619197882.406:5): pid=9937 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="cgroup.controllers" dev="sda1" ino=13923 res=0 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: pdev(0) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: Device attached vhci_hcd vhci_hcd.0: Device attached 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_hcd.0: Device attached vhci_hcd vhci_hcd.0: pdev(2) rhport(1) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd vhci_hcd.0: Device attached vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: release socket audit: type=1800 audit(1619197882.896:6): pid=9977 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="cgroup.controllers" dev="sda1" ino=13904 res=0 vhci_hcd: vhci_device speed not set vhci_hcd: disconnect device vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: vhci_device speed not set audit: type=1800 audit(1619197883.006:7): pid=9989 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="cgroup.controllers" dev="sda1" ino=13936 res=0 usb 11-1: new full-speed USB device number 2 using vhci_hcd vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device audit: type=1800 audit(1619197883.076:8): pid=9990 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.4" name="cgroup.controllers" dev="sda1" ino=13937 res=0 vhci_hcd: connection reset by peer vhci_hcd: stop threads vhci_hcd: release socket 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(5) rhport(0) sockfd(11) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: Device attached vhci_hcd vhci_hcd.0: Device attached 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: Device attached vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device audit: type=1800 audit(1619197883.436:9): pid=10008 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="cgroup.controllers" dev="sda1" ino=13923 res=0 audit: type=1800 audit(1619197883.546:10): pid=10007 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.0" name="cgroup.controllers" dev="sda1" ino=13921 res=0 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_hcd.0: Device attached vhci_hcd: connection closed vhci_hcd: stop threads audit: type=1800 audit(1619197883.686:11): pid=10021 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.1" name="cgroup.controllers" dev="sda1" ino=13922 res=0 vhci_hcd: release socket vhci_hcd: disconnect device 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: Device attached vhci_hcd: vhci_device speed not set 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_hcd.0: Device attached vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device usb 15-1: new full-speed USB device number 2 using vhci_hcd 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: Device attached vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: connection closed 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(4) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: Device attached 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: Device attached 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_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: Device attached vhci_hcd: connection reset by peer 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_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: Device attached vhci_hcd vhci_hcd.0: Device attached 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: Device attached vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: connection closed 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(4) rhport(0) sockfd(11) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: Device attached 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: Device attached 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: Device attached 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 usb 13-1: enqueue for inactive port 0 usb 13-1: enqueue for inactive port 0 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_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: Device attached vhci_hcd: vhci_device speed not set vhci_hcd vhci_hcd.0: Device attached 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: Device attached vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: release socket vhci_hcd: disconnect device 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 vhci_hcd.0: pdev(5) rhport(0) sockfd(11) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: Device attached vhci_hcd: vhci_device speed not set 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: Device attached 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: Device attached 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: release socket vhci_hcd: disconnect device kauditd_printk_skb: 18 callbacks suppressed audit: type=1800 audit(1619197886.826:30): pid=10175 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="cgroup.controllers" dev="sda1" ino=13943 res=0 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) 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: Device attached vhci_hcd: vhci_device speed not set vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd vhci_hcd.0: Device attached 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: Device attached vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: vhci_device speed not set audit: type=1800 audit(1619197887.216:31): pid=10186 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="cgroup.controllers" dev="sda1" ino=13936 res=0 vhci_hcd: disconnect device vhci_hcd: connection closed audit: type=1800 audit(1619197887.256:32): pid=10198 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.4" name="cgroup.controllers" dev="sda1" ino=13937 res=0 vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device 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 vhci_hcd.0: pdev(4) rhport(0) sockfd(11) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: Device attached audit: type=1800 audit(1619197887.476:33): pid=10199 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="cgroup.controllers" dev="sda1" ino=13923 res=0 usb 19-1: 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: vhci_device speed not set vhci_hcd vhci_hcd.0: Device attached 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(1619197887.716:34): pid=10217 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.0" name="cgroup.controllers" dev="sda1" ino=13922 res=0 vhci_hcd vhci_hcd.0: Device attached vhci_hcd: connection reset by peer vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: unlink cleanup rx 1 audit: type=1800 audit(1619197887.826:35): pid=10214 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.1" name="cgroup.controllers" dev="sda1" ino=13921 res=0 vhci_hcd: disconnect device vhci_hcd: connection reset by peer vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device audit: type=1800 audit(1619197887.946:36): pid=10229 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="cgroup.controllers" dev="sda1" ino=13943 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: Device attached 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_hcd.0: Device attached 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: Device attached vhci_hcd: connection reset by peer vhci_hcd: vhci_device speed not set vhci_hcd: stop threads vhci_hcd: release socket audit: type=1800 audit(1619197888.316:37): pid=10239 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.4" name="cgroup.controllers" dev="sda1" ino=13936 res=0 vhci_hcd: unlink cleanup rx 1 vhci_hcd: connection closed vhci_hcd: disconnect device vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: vhci_device speed not set audit: type=1800 audit(1619197888.396:38): pid=10237 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="cgroup.controllers" dev="sda1" ino=13937 res=0 audit: type=1800 audit(1619197888.436:39): pid=10252 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="cgroup.controllers" dev="sda1" ino=13923 res=0 vhci_hcd: connection closed usb 13-1: new full-speed USB device number 3 using vhci_hcd 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(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: Device attached vhci_hcd vhci_hcd.0: Device attached 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: Device attached 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: release socket vhci_hcd: disconnect device 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: Device attached 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 reset by peer vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: unlink cleanup rx 1 vhci_hcd vhci_hcd.0: Device attached 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: Device attached 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 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: 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: Device attached 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: Device attached 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_hcd.0: Device attached vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device 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: Device attached vhci_hcd: connection reset by peer 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_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: Device attached vhci_hcd vhci_hcd.0: Device attached vhci_hcd: vhci_device speed not set 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 4 using vhci_hcd usb 9-1: enqueue for inactive port 0 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 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: connection closed vhci_hcd: stop threads vhci_hcd: vhci_device speed not set vhci_hcd vhci_hcd.0: Device attached vhci_hcd: release socket vhci_hcd vhci_hcd.0: Device attached 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 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: Device attached 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 vhci_hcd.0: Device attached vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(11) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: Device attached