meta-multimedia/recipes-multimedia/gstreamer-0.10/gst-ffmpeg-0.10.13/gst-ffmpeg-fix-CVE-2014-8547.patch


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From 8f1457864be8fb9653643519dea1c6492f1dde57 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Fri, 3 Oct 2014 20:15:52 +0200
Subject: [PATCH] avcodec/gifdec: factorize interleave end handling out

(Upstream commit 8f1457864be8fb9653643519dea1c6492f1dde57)

also change it to a loop
Fixes out of array access
Fixes: asan_heap-oob_ca5410_8_asan_heap-oob_ca5410_97_ID_LSD_Size_Less_Then_Data_Inter_3.gif

Upstream-Status: Backport

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Yue Tao <yue.tao@windriver.com>
---
 libavcodec/gifdec.c |   15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/libavcodec/gifdec.c b/libavcodec/gifdec.c
index dee48f5..90de38b 100644
--- a/gst-libs/ext/libav/libavcodec/gifdec.c
+++ b/gst-libs/ext/libav/libavcodec/gifdec.c
@@ -271,26 +271,21 @@ static int gif_read_image(GifState *s, AVFrame *frame)
             case 1:
                 y1 += 8;
                 ptr += linesize * 8;
-                if (y1 >= height) {
-                    y1 = pass ? 2 : 4;
-                    ptr = ptr1 + linesize * y1;
-                    pass++;
-                }
                 break;
             case 2:
                 y1 += 4;
                 ptr += linesize * 4;
-                if (y1 >= height) {
-                    y1 = 1;
-                    ptr = ptr1 + linesize;
-                    pass++;
-                }
                 break;
             case 3:
                 y1 += 2;
                 ptr += linesize * 2;
                 break;
             }
+            while (y1 >= height) {
+                y1 = 4 >> pass;
+                ptr = ptr1 + linesize * y1;
+                pass++;
+            }
         } else {
             ptr += linesize;
         }
-- 
1.7.9.5

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From c90a7dda6c572f79b8e78da44b6ebf8704edef65 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Sun, 24 Sep 2017 09:12:58 -0400
Subject: [PATCH 1/2] glob: Do not assume glibc glob internals.

It has been proposed that glibc glob start using gl_lstat,
which the API allows it to do.  GNU 'make' should not get in
the way of this.  See:
https://sourceware.org/ml/libc-alpha/2017-09/msg00409.html

* dir.c (local_lstat): New function, like local_stat.
(dir_setup_glob): Use it to initialize gl_lstat too, as the API
requires.
---
Upstream-Status: Backport

 dir.c | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

diff --git a/dir.c b/dir.c
index f34bbf5..12eef30 100644
--- a/dir.c
+++ b/dir.c
@@ -1299,15 +1299,40 @@ local_stat (const char *path, struct stat *buf)
 }
 #endif
 
+/* Similarly for lstat.  */
+#if !defined(lstat) && !defined(WINDOWS32) || defined(VMS)
+# ifndef VMS
+#  ifndef HAVE_SYS_STAT_H
+int lstat (const char *path, struct stat *sbuf);
+#  endif
+# else
+    /* We are done with the fake lstat.  Go back to the real lstat */
+#   ifdef lstat
+#     undef lstat
+#   endif
+# endif
+# define local_lstat lstat
+#elif defined(WINDOWS32)
+/* Windows doesn't support lstat().  */
+# define local_lstat local_stat
+#else
+static int
+local_lstat (const char *path, struct stat *buf)
+{
+  int e;
+  EINTRLOOP (e, lstat (path, buf));
+  return e;
+}
+#endif
+
 void
 dir_setup_glob (glob_t *gl)
 {
   gl->gl_opendir = open_dirstream;
   gl->gl_readdir = read_dirstream;
   gl->gl_closedir = free;
+  gl->gl_lstat = local_lstat;
   gl->gl_stat = local_stat;
-  /* We don't bother setting gl_lstat, since glob never calls it.
-     The slot is only there for compatibility with 4.4 BSD.  */
 }
 
 void
-- 
2.16.1