Changeset e7c3fa0 in mainline

Timestamp:

2012-07-23T04:48:55Z (12 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

ea8b91d

Parents:

7aafdb86

Message:

Detect integer overflow in lcm() when cumputing alignment in malloc_internal().

File:

• uspace/lib/c/generic/malloc.c (modified) (1 diff)

uspace/lib/c/generic/malloc.c

@@ -707 +707 @@
         
         size_t falign = lcm(align, BASE_ALIGN);
+
+        /* Check for integer overflow. */
+        if (falign < align)
+                return NULL;
+
         size_t gross_size = GROSS_SIZE(size);