getservbyport_r: fix out-of-bounds buffer read

[musl] / src / thread / pthread_getschedparam.c

diff --git a/src/thread/pthread_getschedparam.c b/src/thread/pthread_getschedparam.c
index 05be424..c098bef 100644 (file)
--- a/src/thread/pthread_getschedparam.c
+++ b/src/thread/pthread_getschedparam.c
@@ -1,8 +1,11 @@
 #include "pthread_impl.h"
+#include "lock.h"
 
 int pthread_getschedparam(pthread_t t, int *restrict policy, struct sched_param *restrict param)
 {
        int r;
+       sigset_t set;
+       __block_app_sigs(&set);
        LOCK(t->killlock);
        if (!t->tid) {
                r = ESRCH;
@@ -13,5 +16,6 @@ int pthread_getschedparam(pthread_t t, int *restrict policy, struct sched_param
                }
        }
        UNLOCK(t->killlock);
+       __restore_sigs(&set);
        return r;
 }