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-rw-r--r--poky/meta/recipes-devtools/git/files/CVE-2018-11233.patch44
1 files changed, 44 insertions, 0 deletions
diff --git a/poky/meta/recipes-devtools/git/files/CVE-2018-11233.patch b/poky/meta/recipes-devtools/git/files/CVE-2018-11233.patch
new file mode 100644
index 000000000..f4468cf2f
--- /dev/null
+++ b/poky/meta/recipes-devtools/git/files/CVE-2018-11233.patch
@@ -0,0 +1,44 @@
+From 014281e62b7920a6d710a85089e00ca012b0744c Mon Sep 17 00:00:00 2001
+From: Jeff King <peff@peff.net>
+Date: Sun, 13 May 2018 12:09:42 -0400
+Subject: [PATCH] is_ntfs_dotgit: use a size_t for traversing string
+
+We walk through the "name" string using an int, which can
+wrap to a negative value and cause us to read random memory
+before our array (e.g., by creating a tree with a name >2GB,
+since "int" is still 32 bits even on most 64-bit platforms).
+Worse, this is easy to trigger during the fsck_tree() check,
+which is supposed to be protecting us from malicious
+garbage.
+
+Note one bit of trickiness in the existing code: we
+sometimes assign -1 to "len" at the end of the loop, and
+then rely on the "len++" in the for-loop's increment to take
+it back to 0. This is still legal with a size_t, since
+assigning -1 will turn into SIZE_MAX, which then wraps
+around to 0 on increment.
+
+Signed-off-by: Jeff King <peff@peff.net>
+CVE: CVE-2018-11233
+Upstream-Status: Backport[https://github.com/git/git/commit/11a9f4d807a0d71dc6eff51bb87baf4ca2cccf1d]
+Signed-off-by: Sinan Kaya <okaya@kernel.org>
+---
+ path.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/path.c b/path.c
+index da8b65573..d31c795ff 100644
+--- a/path.c
++++ b/path.c
+@@ -1305,7 +1305,7 @@ static int only_spaces_and_periods(const char *path, size_t len, size_t skip)
+
+ int is_ntfs_dotgit(const char *name)
+ {
+- int len;
++ size_t len;
+
+ for (len = 0; ; len++)
+ if (!name[len] || name[len] == '\\' || is_dir_sep(name[len])) {
+--
+2.19.0
+
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