PR #21724 opened by michaelni URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21724 Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21724.patch
Fixes: Timeout Fixes: 472769364/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SVQ1_DEC_fuzzer-5519737145851904 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> >From cd3fce397733abd906dfd7dc642f43fec5445e35 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer <[email protected]> Date: Tue, 10 Feb 2026 18:42:07 +0100 Subject: [PATCH] avcodec/svq1dec: Check input space for minimum Fixes: Timeout Fixes: 472769364/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SVQ1_DEC_fuzzer-5519737145851904 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> --- libavcodec/svq1dec.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/svq1dec.c b/libavcodec/svq1dec.c index 5505b896a2..0dd10e5f88 100644 --- a/libavcodec/svq1dec.c +++ b/libavcodec/svq1dec.c @@ -696,6 +696,9 @@ static int svq1_decode_frame(AVCodecContext *avctx, AVFrame *cur, avctx->skip_frame >= AVDISCARD_ALL) return buf_size; + if (get_bits_left(&s->gb) < FFALIGN(s->width, 16) * FFALIGN(s->height, 16) / 256) + return AVERROR_INVALIDDATA; + result = ff_get_buffer(avctx, cur, s->nonref ? 0 : AV_GET_BUFFER_FLAG_REF); if (result < 0) return result; -- 2.52.0 _______________________________________________ ffmpeg-devel mailing list -- [email protected] To unsubscribe send an email to [email protected]
