1 files changed, 19 insertions, 13 deletions

diff --git a/libavutil/mem.c b/libavutil/mem.c
index b7bb65c139..15c28808c1 100644
--- a/libavutil/mem.c
+++ b/libavutil/mem.c
@@ -139,21 +139,22 @@ void *av_realloc(void *ptr, size_t size)
 
 int av_reallocp(void *ptr, size_t size)
 {
-    void **ptrptr = ptr;
-    void *ret;
+    void *val;
 
     if (!size) {
         av_freep(ptr);
         return 0;
     }
-    ret = av_realloc(*ptrptr, size);
 
-    if (!ret) {
+    memcpy(&val, ptr, sizeof(val));
+    val = av_realloc(val, size);
+
+    if (!val) {
         av_freep(ptr);
         return AVERROR(ENOMEM);
     }
 
-    *ptrptr = ret;
+    memcpy(ptr, &val, sizeof(val));
     return 0;
 }
 
@@ -166,20 +167,23 @@ void *av_realloc_array(void *ptr, size_t nmemb, size_t size)
 
 int av_reallocp_array(void *ptr, size_t nmemb, size_t size)
 {
-    void **ptrptr = ptr;
-    void *ret;
+    void *val;
+
     if (!size || nmemb >= INT_MAX / size)
         return AVERROR(ENOMEM);
     if (!nmemb) {
         av_freep(ptr);
         return 0;
     }
-    ret = av_realloc(*ptrptr, nmemb * size);
-    if (!ret) {
+
+    memcpy(&val, ptr, sizeof(val));
+    val = av_realloc(val, nmemb * size);
+    if (!val) {
         av_freep(ptr);
         return AVERROR(ENOMEM);
     }
-    *ptrptr = ret;
+
+    memcpy(ptr, &val, sizeof(val));
     return 0;
 }
 
@@ -197,9 +201,11 @@ void av_free(void *ptr)
 
 void av_freep(void *arg)
 {
-    void **ptr = (void **)arg;
-    av_free(*ptr);
-    *ptr = NULL;
+    void *val;
+
+    memcpy(&val, arg, sizeof(val));
+    memcpy(arg, &(void *){ NULL }, sizeof(val));
+    av_free(val);
 }
 
 void *av_mallocz(size_t size)