From 84b83ecbfd4f42be64e9e125348204647d4afb01 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Thu, 26 Oct 2017 00:02:56 +0200
Subject: [PATCH] avcodec/jpeglsdec: Check ilv for being a supported value

Fixes: 1773/clusterfuzz-testcase-minimized-4832523987189760

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit fe533628b9604e2f8e5179d5c5dd17c3cb764265)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavcodec/jpeglsdec.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavcodec/jpeglsdec.c b/libavcodec/jpeglsdec.c
index 7d25953068..62c8189c94 100644
--- a/libavcodec/jpeglsdec.c
+++ b/libavcodec/jpeglsdec.c
@@ -422,6 +422,10 @@ int ff_jpegls_decode_picture(MJpegDecodeContext *s, int near,
         avpriv_report_missing_feature(s->avctx, "Sample interleaved images");
         ret = AVERROR_PATCHWELCOME;
         goto end;
+    } else { /* unknown interleaving */
+        avpriv_report_missing_feature(s->avctx, "Unknown interleaved images");
+        ret = AVERROR_PATCHWELCOME;
+        goto end;
     }
 
     if (s->xfrm && s->nb_components == 3) {