File ffmpeg-CVE-2022-3341.patch of Package ffmpeg-4

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File ffmpeg-CVE-2022-3341.patch of Package ffmpeg-4 (Revision 43e415a97305e48404baa5feda3531f5)

Currently displaying revision 43e415a97305e48404baa5feda3531f5 , Show latest

diff --unified --recursive --text --new-file --color ffmpeg-4.4.3.old/libavformat/nutdec.c ffmpeg-4.4.3.new/libavformat/nutdec.c
--- ffmpeg-4.4.3.old/libavformat/nutdec.c	2022-10-10 03:04:43.000000000 +0800
+++ ffmpeg-4.4.3.new/libavformat/nutdec.c	2023-01-20 15:33:38.060002545 +0800
@@ -358,8 +358,12 @@
         ret = AVERROR(ENOMEM);
         goto fail;
     }
-    for (i = 0; i < stream_count; i++)
-        avformat_new_stream(s, NULL);
+    for (i = 0; i < stream_count; i++) {
+        if (!avformat_new_stream(s, NULL)) {
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+    }
 
     return 0;
 fail:
@@ -807,19 +811,23 @@
     NUTContext *nut = s->priv_data;
     AVIOContext *bc = s->pb;
     int64_t pos;
-    int initialized_stream_count;
+    int initialized_stream_count, ret;
 
     nut->avf = s;
 
     /* main header */
     pos = 0;
+    ret = 0;
     do {
+        if (ret == AVERROR(ENOMEM))
+            return ret;
+
         pos = find_startcode(bc, MAIN_STARTCODE, pos) + 1;
         if (pos < 0 + 1) {
             av_log(s, AV_LOG_ERROR, "No main startcode found.\n");
             goto fail;
         }
-    } while (decode_main_header(nut) < 0);
+    } while ((ret = decode_main_header(nut)) < 0);
 
     /* stream headers */
     pos = 0;

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File ffmpeg-CVE-2022-3341.patch of Package ffmpeg-4 (Revision 43e415a97305e48404baa5feda3531f5)

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