Changeset 0a2c96c in mainline

Timestamp:

2019-09-29T13:58:49Z (5 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

ef0a3375

Parents:

1a4ec93f

git-author:

Jakub Jermar <jakub@…> (2019-09-29 13:57:17)

git-committer:

Jakub Jermar <jakub@…> (2019-09-29 13:58:49)

Message:

Check for unsigned wrap-around in malloc

File:

• kernel/generic/src/mm/malloc.c (modified) (1 diff)

kernel/generic/src/mm/malloc.c

@@ -187 +187 @@
 void *malloc(size_t size)
 {
+        if (size + _offset < size)
+                return NULL;
+
         void *obj = mem_alloc(alignof(max_align_t), size + _offset) + _offset;