avcodec/tiff: check ff_lzw_decode_open() for failure

05df39cf · Paul B Mahol · 39cfb722 · 05df39cf
Commit 05df39cf authored Sep 09, 2018 by Paul B Mahol
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tiff.c libavcodec/tiff.c +2 -0

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--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff.c
@@ -1403,6 +1403,8 @@ static av_cold int tiff_init(AVCodecContext *avctx)
    s->subsampling[1] = 1;
    s->avctx  = avctx;
    ff_lzw_decode_open(&s->lzw);
+    if (!s->lzw)
+        return AVERROR(ENOMEM);
    ff_ccitt_unpack_init();

    return 0;