From e9d443cf08503f7bd0149576ba9e891322de340d Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 25 Jan 2013 00:41:16 +0100 Subject: [PATCH] eacmv: Free frames on resolution changes Fixes out of array reads Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer --- libavcodec/eacmv.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/libavcodec/eacmv.c b/libavcodec/eacmv.c index a129161386b..33c614588d4 100644 --- a/libavcodec/eacmv.c +++ b/libavcodec/eacmv.c @@ -132,8 +132,13 @@ static void cmv_process_header(CmvContext *s, const uint8_t *buf, const uint8_t s->width = AV_RL16(&buf[4]); s->height = AV_RL16(&buf[6]); - if (s->avctx->width!=s->width || s->avctx->height!=s->height) + if (s->avctx->width!=s->width || s->avctx->height!=s->height) { avcodec_set_dimensions(s->avctx, s->width, s->height); + if (s->frame.data[0]) + s->avctx->release_buffer(s->avctx, &s->frame); + if (s->last_frame.data[0]) + s->avctx->release_buffer(s->avctx, &s->last_frame); + } s->avctx->time_base.num = 1; s->avctx->time_base.den = AV_RL16(&buf[10]); -- 2.39.5