Author: emaste
Date: Wed Jan 7 01:51:02 2015
New Revision: 276774
URL: https://svnweb.freebsd.org/changeset/base/276774
Log:
ar: Avoid null pointer deref while reading corrupt archives
ELF Tool Chain ticket #467
Reported by: Alexander Cherepanov <chere...@mccme.ru>
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Modified:
head/usr.bin/ar/read.c
Modified: head/usr.bin/ar/read.c
==============================================================================
--- head/usr.bin/ar/read.c Wed Jan 7 01:41:45 2015 (r276773)
+++ head/usr.bin/ar/read.c Wed Jan 7 01:51:02 2015 (r276774)
@@ -102,7 +102,8 @@ read_archive(struct bsdar *bsdar, char m
continue;
}
- name = archive_entry_pathname(entry);
+ if ((name = archive_entry_pathname(entry)) == NULL)
+ break;
/* Skip pseudo members. */
if (strcmp(name, "/") == 0 || strcmp(name, "//") == 0)
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