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authorCarl Eugen Hoyos <cehoyos@ag.or.at>2017-01-01 14:19:48 +0100
committerCarl Eugen Hoyos <cehoyos@ag.or.at>2017-01-01 18:53:27 +0100
commit4acea512f36b96256535b45b1a7e723c61c89c31 (patch)
treefdbd13f5ae20cc626bf93472f243774eb4ea0a13 /libavcodec
parentb7a6d28e5e7ae4dff7c53a2f24e2017220dd6cc1 (diff)
lavc/mjpegdec: Do not overread too short JFIF tags.
Fixes ticket #6055.
Diffstat (limited to 'libavcodec')
-rw-r--r--libavcodec/mjpegdec.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index eee8d58147..e0b22ec948 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -1670,6 +1670,8 @@ static int mjpeg_decode_app(MJpegDecodeContext *s)
if (id == AV_RB32("JFIF")) {
int t_w, t_h, v1, v2;
+ if (len < 8)
+ goto out;
skip_bits(&s->gb, 8); /* the trailing zero-byte */
v1 = get_bits(&s->gb, 8);
v2 = get_bits(&s->gb, 8);