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Mon, 22 Dec 2025 19:38:37 +0200 (EET) MIME-Version: 1.0 To: ffmpeg-devel@ffmpeg.org Date: Mon, 22 Dec 2025 17:38:37 -0000 Message-ID: <176642511811.60.13171508956822035714@2cb04c0e5124> Message-ID-Hash: 63JT5NCB5ZF6HJD7RJI67ISLB3BBYDHM X-Message-ID-Hash: 63JT5NCB5ZF6HJD7RJI67ISLB3BBYDHM 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] [PATCH] avcodec/adpcm: check block_align for PSXC (PR #21268) 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 #21268 opened by michaelni URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21268 Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21268.patch Fixes: division by 0 Fixes: 457634826/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ADPCM_PSXC_DEC_fuzzer-4903668521697280 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer >>From e965801a0e13f16829be67708618c145748ff5b8 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 22 Dec 2025 18:30:52 +0100 Subject: [PATCH] avcodec/adpcm: check block_align for PSXC Fixes: division by 0 Fixes: 457634826/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ADPCM_PSXC_DEC_fuzzer-4903668521697280 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/adpcm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c index 72fbb841a4..3da0791ba3 100644 --- a/libavcodec/adpcm.c +++ b/libavcodec/adpcm.c @@ -294,7 +294,7 @@ static av_cold int adpcm_decode_init(AVCodecContext * avctx) break; case AV_CODEC_ID_ADPCM_PSXC: max_channels = 8; - if (avctx->ch_layout.nb_channels <= 0) + if (avctx->ch_layout.nb_channels <= 0 || avctx->block_align <= 0) return AVERROR_INVALIDDATA; break; case AV_CODEC_ID_ADPCM_IMA_DAT4: -- 2.49.1 _______________________________________________ ffmpeg-devel mailing list -- ffmpeg-devel@ffmpeg.org To unsubscribe send an email to ffmpeg-devel-leave@ffmpeg.org