Otherwise it causes a NULL pointer dereference of frame->data[1].
Signed-off-by: Andreas Cadhalpun <[email protected]>
---
libavcodec/dds.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavcodec/dds.c b/libavcodec/dds.c
index c918cf0..fe36709 100644
--- a/libavcodec/dds.c
+++ b/libavcodec/dds.c
@@ -662,6 +662,11 @@ static int dds_decode(AVCodecContext *avctx, void *data,
if (ctx->paletted) {
int i;
+ if (!frame->data[1]) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Palette frame buffer is not allocated.\n");
+ return AVERROR_INVALIDDATA;
+ }
/* Use the first 1024 bytes as palette, then copy the rest. */
bytestream2_get_buffer(gbc, frame->data[1], 256 * 4);
for (i = 0; i < 256; i++)
--
2.6.2
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