From 2fbb37b51bbea891392ad357baf8f3dff00bac05 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 9 Nov 2012 20:58:57 +0100 Subject: [PATCH] iff/ilbm: check remaining buffer size. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer --- libavcodec/iff.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/iff.c b/libavcodec/iff.c index d5c1457de1..9184015d50 100644 --- a/libavcodec/iff.c +++ b/libavcodec/iff.c @@ -575,13 +575,13 @@ static int decode_frame_ilbm(AVCodecContext *avctx, } } else if (avctx->codec_tag == MKTAG('P','B','M',' ')) { // IFF-PBM if (avctx->pix_fmt == AV_PIX_FMT_PAL8 || avctx->pix_fmt == AV_PIX_FMT_GRAY8) { - for(y = 0; y < avctx->height; y++ ) { + for(y = 0; y < avctx->height && buf_end > buf; y++ ) { uint8_t *row = &s->frame.data[0][y * s->frame.linesize[0]]; memcpy(row, buf, FFMIN(avctx->width, buf_end - buf)); buf += avctx->width + (avctx->width % 2); // padding if odd } } else if (s->ham) { // IFF-PBM: HAM to AV_PIX_FMT_BGR32 - for (y = 0; y < avctx->height; y++) { + for (y = 0; y < avctx->height && buf_end > buf; y++) { uint8_t *row = &s->frame.data[0][ y*s->frame.linesize[0] ]; memcpy(s->ham_buf, buf, FFMIN(avctx->width, buf_end - buf)); buf += avctx->width + (avctx->width & 1); // padding if odd