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re
make_absolute_path(): check bounds when seeing an overlong symlink
author
Junio C Hamano
<gitster@pobox.com>
Wed, 17 Dec 2008 20:37:48 +0000
(12:37 -0800)
committer
Junio C Hamano
<gitster@pobox.com>
Wed, 17 Dec 2008 21:36:34 +0000
(13:36 -0800)
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
abspath.c
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diff --git
a/abspath.c
b/abspath.c
index 8194ce1256525105d07eedf2f964ad51d9162d95..649f34f83365db3513c5166b897c4f033831444d 100644
(file)
--- a/
abspath.c
+++ b/
abspath.c
@@
-64,6
+64,8
@@
const char *make_absolute_path(const char *path)
len = readlink(buf, next_buf, PATH_MAX);
if (len < 0)
die ("Invalid symlink: %s", buf);
+ if (PATH_MAX <= len)
+ die("symbolic link too long: %s", buf);
next_buf[len] = '\0';
buf = next_buf;
buf_index = 1 - buf_index;