ffmpeg | branch: release/4.4 | Michael Niedermayer <mich...@niedermayer.cc> | Sat Jun 3 21:44:37 2023 +0200| [4b072933d426e56c00ff449f4edfe2debc3b958d] | committer: Michael Niedermayer
avcodec: Ignoring errors is only possible before the input end Fixes: out of array read Fixes: Ticket 10308 Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit fead656a7bf523d448fe8bd39c1f2ea36be98fb9) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4b072933d426e56c00ff449f4edfe2debc3b958d --- libavcodec/h263dec.c | 2 +- libavcodec/mpeg4videodec.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c index f6f7789cef..e3feb6dd65 100644 --- a/libavcodec/h263dec.c +++ b/libavcodec/h263dec.c @@ -301,7 +301,7 @@ static int decode_slice(MpegEncContext *s) ff_er_add_slice(&s->er, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, ER_MB_ERROR & part_mask); - if (s->avctx->err_recognition & AV_EF_IGNORE_ERR) + if ((s->avctx->err_recognition & AV_EF_IGNORE_ERR) && get_bits_left(&s->gb) > 0) continue; return AVERROR_INVALIDDATA; } diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c index 2c440a5026..fc4e92db38 100644 --- a/libavcodec/mpeg4videodec.c +++ b/libavcodec/mpeg4videodec.c @@ -1187,7 +1187,7 @@ static inline int mpeg4_decode_block(Mpeg4DecContext *ctx, int16_t *block, if (SHOW_UBITS(re, &s->gb, 1) == 0) { av_log(s->avctx, AV_LOG_ERROR, "1. marker bit missing in 3. esc\n"); - if (!(s->avctx->err_recognition & AV_EF_IGNORE_ERR)) + if (!(s->avctx->err_recognition & AV_EF_IGNORE_ERR) || get_bits_left(&s->gb) <= 0) return AVERROR_INVALIDDATA; } SKIP_CACHE(re, &s->gb, 1); @@ -1198,7 +1198,7 @@ static inline int mpeg4_decode_block(Mpeg4DecContext *ctx, int16_t *block, if (SHOW_UBITS(re, &s->gb, 1) == 0) { av_log(s->avctx, AV_LOG_ERROR, "2. marker bit missing in 3. esc\n"); - if (!(s->avctx->err_recognition & AV_EF_IGNORE_ERR)) + if (!(s->avctx->err_recognition & AV_EF_IGNORE_ERR) || get_bits_left(&s->gb) <= 0) return AVERROR_INVALIDDATA; } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
