---
sysdeps/htl/sem-post.c | 7 +++++++
sysdeps/mach/hurd/bits/local_lim.h | 3 +++
2 files changed, 10 insertions(+)
diff --git a/sysdeps/htl/sem-post.c b/sysdeps/htl/sem-post.c
index 77f297314e..2e0be8fc49 100644
--- a/sysdeps/htl/sem-post.c
+++ b/sysdeps/htl/sem-post.c
@@ -30,6 +30,13 @@ __sem_post (sem_t *sem)
if (sem->__value > 0)
/* Do a quick up. */
{
+ if (sem->__value == SEM_VALUE_MAX)
+ {
+ __pthread_spin_unlock (&sem->__lock);
+ errno = EOVERFLOW;
+ return -1;
+ }
+
assert (sem->__queue == NULL);
sem->__value++;
__pthread_spin_unlock (&sem->__lock);
diff --git a/sysdeps/mach/hurd/bits/local_lim.h
b/sysdeps/mach/hurd/bits/local_lim.h
index 348eee74bb..8e781e4965 100644
--- a/sysdeps/mach/hurd/bits/local_lim.h
+++ b/sysdeps/mach/hurd/bits/local_lim.h
@@ -41,3 +41,6 @@
/* The number of threads per process. */
#define _POSIX_THREAD_THREADS_MAX 64
+
+/* Maximum value the semaphore can have. */
+#define SEM_VALUE_MAX (2147483647)
--
2.24.1
