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Allow for a non-initialized alpha decompressor in DoRemap.

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BUG=oss-fuzz:9364

Change-Id: Ib1a1c6b0ccfcc255505f019e3e8fd15db73bc4b6
This commit is contained in:
Vincent Rabaud
2018-07-13 22:09:06 +02:00
parent 2563db4759
commit da96d8d9ab
2 changed files with 4 additions and 5 deletions
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6
src/dec/vp8l_dec.c
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@ -1576,7 +1576,6 @@ int VP8LDecodeAlphaHeader(ALPHDecoder* const alph_dec,
if (dec == NULL) return 0;
assert(alph_dec != NULL);
alph_dec->vp8l_dec_ = dec;
dec->width_ = alph_dec->width_;
dec->height_ = alph_dec->height_;
@ -1608,11 +1607,12 @@ int VP8LDecodeAlphaHeader(ALPHDecoder* const alph_dec,
if (!ok) goto Err;
// Only set here, once we are sure it is valid (to avoid thread races).
alph_dec->vp8l_dec_ = dec;
return 1;
Err:
VP8LDelete(alph_dec->vp8l_dec_);
alph_dec->vp8l_dec_ = NULL;
VP8LDelete(dec);
return 0;
}