Corpus for accept4$bt_l2cap:

Coverage	Program
3033	perf_event_open-getpgrp-pidfd_open-dup-setns-openat-dup2-perf_event_open-creat-dup2-perf_event_open-creat-accept4$bt_l2cap-dup2-perf_event_open-creat-faccessat2-openat$selinux_attr-flistxattr
76	perf_event_open-ioctl$AUTOFS_DEV_IOCTL_REQUESTER-ioctl$AUTOFS_DEV_IOCTL_REQUESTER-socket$netlink-sendmsg$nl_generic-perf_event_open-ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT-sendmsg$AUDIT_GET_FEATURE-socket$nl_generic-dup-ioctl$sock_SIOCGIFINDEX_80211-getsockopt$sock_timeval-accept4$bt_l2cap-openat$dir-openat-dup3-ioctl$sock_SIOCGIFVLAN_GET_VLAN_REALDEV_NAME_CMD-syz_80211_join_ibss