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gc.c: check of size in ruby_sized_xrealloc

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58652 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2017-05-10 14:25:03 +00:00
parent 525844f257
commit 849bf24abf

6
gc.c
View file

@ -7880,7 +7880,7 @@ objspace_xrealloc(rb_objspace_t *objspace, void *ptr, size_t new_size, size_t ol
{
void *mem;
if (!ptr) return objspace_xmalloc(objspace, new_size);
if (!ptr) return objspace_xmalloc0(objspace, new_size);
/*
* The behavior of realloc(ptr, 0) is implementation defined.
@ -7979,6 +7979,10 @@ ruby_xcalloc(size_t n, size_t size)
void *
ruby_sized_xrealloc(void *ptr, size_t new_size, size_t old_size)
{
if ((ssize_t)new_size < 0) {
negative_size_allocation_error("too large allocation size");
}
return objspace_xrealloc(&rb_objspace, ptr, new_size, old_size);
}