Author: markj
Date: Tue Feb 4 21:16:41 2020
New Revision: 357537
URL: https://svnweb.freebsd.org/changeset/base/357537
Log:
elfcopy: Handle multiple data descriptors properly.
The code clearly meant to resize the buffer in the case where a section
was backed by multiple data descriptors.
In practice this shouldn't have been a problem since libelf would return
a single data descriptor for each section in a newly opened file.
CID: 1262522
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Modified:
head/contrib/elftoolchain/elfcopy/sections.c
Modified: head/contrib/elftoolchain/elfcopy/sections.c
==============================================================================
--- head/contrib/elftoolchain/elfcopy/sections.c Tue Feb 4 21:16:16
2020 (r357536)
+++ head/contrib/elftoolchain/elfcopy/sections.c Tue Feb 4 21:16:41
2020 (r357537)
@@ -1137,7 +1137,7 @@ read_section(struct section *s, size_t *size)
if (b == NULL)
b = malloc(id->d_size);
else
- b = malloc(sz + id->d_size);
+ b = realloc(b, sz + id->d_size);
if (b == NULL)
err(EXIT_FAILURE, "malloc or realloc failed");
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