From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 5/8] avformat/mov: Check that sample_sizes is allocated in mov_parse_heif_items()
Date: Fri, 20 Jun 2025 02:32:52 +0200
Message-ID: <20250620003255.295598-5-michael@niedermayer.cc> (raw)
In-Reply-To: <20250620003255.295598-1-michael@niedermayer.cc>
Fixes: NULL pointer dereference
Fixes: 416811958/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-5425269114732544
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavformat/mov.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 8a094b1ea0a..22488b517cb 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -10332,6 +10332,9 @@ static int mov_parse_heif_items(AVFormatContext *s)
st = item->st;
sc = st->priv_data;
+ if (!sc->sample_sizes)
+ return AVERROR_INVALIDDATA;
+
st->codecpar->width = item->width;
st->codecpar->height = item->height;
--
2.49.0
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next prev parent reply other threads:[~2025-06-20 0:33 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-20 0:32 [FFmpeg-devel] [PATCH 1/8] avcodec/psd: Move frame allocation after RLE processing Michael Niedermayer
2025-06-20 0:32 ` [FFmpeg-devel] [PATCH 2/8] avcodec/hcadec: Check sample_rate Michael Niedermayer
2025-06-20 8:45 ` Andreas Rheinhardt
2025-06-20 14:28 ` Michael Niedermayer
2025-06-20 0:32 ` [FFmpeg-devel] [PATCH 3/8] swscale/output: Fix integer overflows in yuv2rgba64_1_c_template() Michael Niedermayer
2025-06-20 0:32 ` [FFmpeg-devel] [PATCH 4/8] tools/target_dec_fuzzer: adjust threshold for VP8 Michael Niedermayer
2025-06-20 0:32 ` Michael Niedermayer [this message]
2025-06-20 0:53 ` [FFmpeg-devel] [PATCH 5/8] avformat/mov: Check that sample_sizes is allocated in mov_parse_heif_items() James Almer
2025-06-20 14:39 ` Michael Niedermayer
2025-06-20 0:32 ` [FFmpeg-devel] [PATCH 6/8] avcodec/vvc/ctu: Check palette_escape_val Michael Niedermayer
2025-06-20 0:32 ` [FFmpeg-devel] [PATCH 7/8] avcodec/vvc/cabac: Check k in kth_order_egk_decode() Michael Niedermayer
2025-06-20 0:32 ` [FFmpeg-devel] [PATCH 8/8] avcodec/vvc/ctu: Check ff_vvc_num_signalled_palette_entries Michael Niedermayer
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