Corpus for pkey_alloc:

Coverage	Program
5283	openat2-perf_event_open-openat2-sched_setaffinity-perf_event_open-pkey_alloc-pkey_mprotect-getpid-rt_sigqueueinfo-perf_event_open-pkey_mprotect-creat-memfd_secret-ioctl$EXT4_IOC_GROUP_ADD-pkey_mprotect
1444	seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-pkey_alloc
878	perf_event_open-perf_event_open-pkey_alloc
58	perf_event_open-pkey_alloc
23	pkey_alloc-pkey_alloc
19	prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-pkey_alloc
9	pkey_alloc