Author: jhb
Date: Mon Jan 28 15:48:31 2013
New Revision: 246035
URL: http://svnweb.freebsd.org/changeset/base/246035
Log:
- Compute the correct size to reallocate when doubling the size of the
array of loaded objects to avoid a buffer overrun.
- Use reallocf() to avoid leaking memory if the realloc() fails.
PR: kern/175648
Submitted by: y...@rawbw.com (1)
MFC after: 1 week
Modified:
head/lib/libproc/proc_rtld.c
Modified: head/lib/libproc/proc_rtld.c
==============================================================================
--- head/lib/libproc/proc_rtld.c Mon Jan 28 12:58:37 2013
(r246034)
+++ head/lib/libproc/proc_rtld.c Mon Jan 28 15:48:31 2013
(r246035)
@@ -44,7 +44,8 @@ map_iter(const rd_loadobj_t *lop, void *
if (phdl->nobjs >= phdl->rdobjsz) {
phdl->rdobjsz *= 2;
- phdl->rdobjs = realloc(phdl->rdobjs, phdl->rdobjsz);
+ phdl->rdobjs = reallocf(phdl->rdobjs, sizeof(*phdl->rdobjs) *
+ phdl->rdobjsz);
if (phdl->rdobjs == NULL)
return (-1);
}
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