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Wed, 11 Feb 2026 02:02:12 +0200 (EET) MIME-Version: 1.0 To: ffmpeg-devel@ffmpeg.org Date: Wed, 11 Feb 2026 00:01:30 -0000 Message-ID: <177076813259.25.15483817216146207628@009cbcb3d8cd> Message-ID-Hash: TVTDCRJWZTDMUCLTDNVC3DORKKRPT5KG X-Message-ID-Hash: TVTDCRJWZTDMUCLTDNVC3DORKKRPT5KG 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/interplayacm: Check input for fill_block() (PR #21727) 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 #21727 opened by michaelni URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21727 Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21727.patch Fixes: Timeout Fixes: 476763877/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INTERPLAY_ACM_fuzzer-4515681843609600 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer >>From b4e7f2d2eee19906ac57ffe8090c5f5ed76f8356 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Tue, 10 Feb 2026 20:47:25 +0100 Subject: [PATCH] avcodec/interplayacm: Check input for fill_block() Fixes: Timeout Fixes: 476763877/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INTERPLAY_ACM_fuzzer-4515681843609600 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/interplayacm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/interplayacm.c b/libavcodec/interplayacm.c index 2d940b903b..cd2e6faa67 100644 --- a/libavcodec/interplayacm.c +++ b/libavcodec/interplayacm.c @@ -437,6 +437,9 @@ static int fill_block(InterplayACMContext *s) unsigned i, ind; int ret; + if (get_bits_left(gb) < s->cols * 5) + return AVERROR_INVALIDDATA; + for (i = 0; i < s->cols; i++) { ind = get_bits(gb, 5); ret = filler_list[ind](s, ind, i); -- 2.52.0 _______________________________________________ ffmpeg-devel mailing list -- ffmpeg-devel@ffmpeg.org To unsubscribe send an email to ffmpeg-devel-leave@ffmpeg.org