summaryrefslogtreecommitdiffstats
path: root/meta/recipes-core/eglibc/eglibc-2.19/relocatable_sdk_fix_openpath.patch
diff options
context:
space:
mode:
Diffstat (limited to 'meta/recipes-core/eglibc/eglibc-2.19/relocatable_sdk_fix_openpath.patch')
-rw-r--r--meta/recipes-core/eglibc/eglibc-2.19/relocatable_sdk_fix_openpath.patch41
1 files changed, 41 insertions, 0 deletions
diff --git a/meta/recipes-core/eglibc/eglibc-2.19/relocatable_sdk_fix_openpath.patch b/meta/recipes-core/eglibc/eglibc-2.19/relocatable_sdk_fix_openpath.patch
new file mode 100644
index 0000000..f164f8f
--- /dev/null
+++ b/meta/recipes-core/eglibc/eglibc-2.19/relocatable_sdk_fix_openpath.patch
@@ -0,0 +1,41 @@
1Upstream-Status: Inappropriate [SDK specific]
2
3eglibc-nativesdk: Fix buffer overrun with a relocated SDK
4
5When ld-linux-*.so.2 is relocated to a path that is longer than the
6original fixed location, the dynamic loader will crash in open_path
7because it implicitly assumes that max_dirnamelen is a fixed size that
8never changes.
9
10The allocated buffer will not be large enough to contain the directory
11path string which is larger than the fixed location provided at build
12time.
13
14Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
15
16---
17 elf/dl-load.c | 12 ++++++++++++
18 1 file changed, 12 insertions(+)
19
20--- a/elf/dl-load.c
21+++ b/elf/dl-load.c
22@@ -1919,7 +1919,19 @@ open_path (const char *name, size_t name
23 given on the command line when rtld is run directly. */
24 return -1;
25
26+ do
27+ {
28+ struct r_search_path_elem *this_dir = *dirs;
29+ if (this_dir->dirnamelen > max_dirnamelen)
30+ {
31+ max_dirnamelen = this_dir->dirnamelen;
32+ }
33+ }
34+ while (*++dirs != NULL);
35+
36 buf = alloca (max_dirnamelen + max_capstrlen + namelen);
37+
38+ dirs = sps->dirs;
39 do
40 {
41 struct r_search_path_elem *this_dir = *dirs;