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avcodec/vp9: Rollback dimensions when format is rejected

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Fixes: BMO#2029296

Found-by: Mozilla Security Team, Paul Adenot for the write variant
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Paul Adenot
2026-04-12 03:18:44 +02:00
committed by michaelni
parent 1092852406
commit 6c114bd6fa
1 changed files with 3 additions and 1 deletions
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4
libavcodec/vp9.c
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@@ -255,8 +255,10 @@ static int update_size(AVCodecContext *avctx, int w, int h)
*fmtp = AV_PIX_FMT_NONE;
ret = ff_get_format(avctx, pix_fmts);
if (ret < 0)
if (ret < 0) {
ff_set_dimensions(avctx, s->w, s->h);
return ret;
}
avctx->pix_fmt = ret;
s->gf_fmt = s->pix_fmt;