Fixes: 861/clusterfuzz-testcase-5688284384591872
Found-by: continuous fuzzing process
https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavcodec/tiff.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index 0be7be7528..5a6573fb79 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff.c
@@ -914,6 +914,11 @@ static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
break;
case TIFF_STRIP_OFFS:
if (count == 1) {
+ if (value > INT_MAX) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "strippos %u too large\n", value);
+ return AVERROR_INVALIDDATA;
+ }
s->strippos = 0;
s->stripoff = value;
} else
@@ -925,6 +930,11 @@ static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
break;
case TIFF_STRIP_SIZE:
if (count == 1) {
+ if (value > INT_MAX) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "stripsize %u too large\n", value);
+ return AVERROR_INVALIDDATA;
+ }
s->stripsizesoff = 0;
s->stripsize = value;
s->strips = 1;
--
2.11.0
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