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-rw-r--r--poky/meta/recipes-core/glibc/glibc/0002-nativesdk-glibc-Fix-buffer-overrun-with-a-relocated-.patch50
1 files changed, 50 insertions, 0 deletions
diff --git a/poky/meta/recipes-core/glibc/glibc/0002-nativesdk-glibc-Fix-buffer-overrun-with-a-relocated-.patch b/poky/meta/recipes-core/glibc/glibc/0002-nativesdk-glibc-Fix-buffer-overrun-with-a-relocated-.patch
new file mode 100644
index 000000000..899481f05
--- /dev/null
+++ b/poky/meta/recipes-core/glibc/glibc/0002-nativesdk-glibc-Fix-buffer-overrun-with-a-relocated-.patch
@@ -0,0 +1,50 @@
+From 50736f7fc1fdc9e1f7c05f1fec75c977d9be9228 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 18 Mar 2015 01:50:00 +0000
+Subject: [PATCH 02/27] nativesdk-glibc: Fix buffer overrun with a relocated
+ SDK
+
+When ld-linux-*.so.2 is relocated to a path that is longer than the
+original fixed location, the dynamic loader will crash in open_path
+because it implicitly assumes that max_dirnamelen is a fixed size that
+never changes.
+
+The allocated buffer will not be large enough to contain the directory
+path string which is larger than the fixed location provided at build
+time.
+
+Upstream-Status: Inappropriate [OE SDK specific]
+
+Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ elf/dl-load.c | 12 ++++++++++++
+ 1 file changed, 12 insertions(+)
+
+diff --git a/elf/dl-load.c b/elf/dl-load.c
+index a73d11a62f..62e3eee478 100644
+--- a/elf/dl-load.c
++++ b/elf/dl-load.c
+@@ -1707,7 +1707,19 @@ open_path (const char *name, size_t namelen, int mode,
+ given on the command line when rtld is run directly. */
+ return -1;
+
++ do
++ {
++ struct r_search_path_elem *this_dir = *dirs;
++ if (this_dir->dirnamelen > max_dirnamelen)
++ {
++ max_dirnamelen = this_dir->dirnamelen;
++ }
++ }
++ while (*++dirs != NULL);
++
+ buf = alloca (max_dirnamelen + max_capstrlen + namelen);
++
++ dirs = sps->dirs;
+ do
+ {
+ struct r_search_path_elem *this_dir = *dirs;
+--
+2.16.1
+
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