Fixes: shift exponent -100663046 is negative Fixes: out of array access Fixes: 15270/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5727829913763840
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/iff.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/iff.c b/libavcodec/iff.c index 33cf2e3a94..48a0340604 100644 --- a/libavcodec/iff.c +++ b/libavcodec/iff.c @@ -382,7 +382,7 @@ static av_cold int decode_init(AVCodecContext *avctx) IffContext *s = avctx->priv_data; int err; - if (avctx->bits_per_coded_sample <= 8) { + if (avctx->bits_per_coded_sample <= 8U) { int palette_size; if (avctx->extradata_size >= 2) @@ -391,7 +391,7 @@ static av_cold int decode_init(AVCodecContext *avctx) palette_size = 0; avctx->pix_fmt = (avctx->bits_per_coded_sample < 8) || (avctx->extradata_size >= 2 && palette_size) ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8; - } else if (avctx->bits_per_coded_sample <= 32) { + } else if (avctx->bits_per_coded_sample <= 32U) { if (avctx->codec_tag == MKTAG('R', 'G', 'B', '8')) { avctx->pix_fmt = AV_PIX_FMT_RGB32; } else if (avctx->codec_tag == MKTAG('R', 'G', 'B', 'N')) { -- 2.21.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
