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Wed, 11 Feb 2026 01:46:53 +0200 (EET) MIME-Version: 1.0 To: ffmpeg-devel@ffmpeg.org Date: Tue, 10 Feb 2026 23:46:53 -0000 Message-ID: <177076721423.25.12132622315731027549@009cbcb3d8cd> Message-ID-Hash: GPSLB2RUBAC52U7U7PVCORLAVFTGJ5E4 X-Message-ID-Hash: GPSLB2RUBAC52U7U7PVCORLAVFTGJ5E4 X-MailFrom: code@ffmpeg.org X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; header-match-ffmpeg-devel.ffmpeg.org-0; header-match-ffmpeg-devel.ffmpeg.org-1; header-match-ffmpeg-devel.ffmpeg.org-2; header-match-ffmpeg-devel.ffmpeg.org-3; emergency; member-moderation X-Mailman-Version: 3.3.10 Precedence: list Reply-To: FFmpeg development discussions and patches Subject: [FFmpeg-devel] [PR] avcodec/svq1dec: Check input space for minimum (PR #21724) List-Id: FFmpeg development discussions and patches Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: michaelni via ffmpeg-devel Cc: michaelni Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Archived-At: List-Archive: List-Post: 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 >>From cd3fce397733abd906dfd7dc642f43fec5445e35 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer 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 --- 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 -- ffmpeg-devel@ffmpeg.org To unsubscribe send an email to ffmpeg-devel-leave@ffmpeg.org