From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 3/5] avcodec/rv60dec: Check sum in read_slice_sizes()
Date: Sat, 21 Jun 2025 23:15:19 +0200
Message-ID: <20250621211521.895204-3-michael@niedermayer.cc> (raw)
In-Reply-To: <20250621211521.895204-1-michael@niedermayer.cc>
Fixes: signed integer overflow: 2147483647 + 1913651185 cannot be represented in type 'int'
Fixes: 418335931/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RV60_fuzzer-6568264620900352
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavcodec/rv60dec.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavcodec/rv60dec.c b/libavcodec/rv60dec.c
index 2bbcb1d6209..dbafa7eed02 100644
--- a/libavcodec/rv60dec.c
+++ b/libavcodec/rv60dec.c
@@ -409,6 +409,8 @@ static int read_slice_sizes(RV60Context *s, GetBitContext *gb)
if (last_size <= 0)
return AVERROR_INVALIDDATA;
s->slice[i].size = last_size;
+ if (s->slice[i].size > INT32_MAX - sum)
+ return AVERROR_INVALIDDATA;
sum += s->slice[i].size;
}
--
2.49.0
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
next prev parent reply other threads:[~2025-06-21 21:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-21 21:15 [FFmpeg-devel] [PATCH 1/5] avformat/mov: Check that sample_count is allocated in mov_parse_heif_items() Michael Niedermayer
2025-06-21 21:15 ` [FFmpeg-devel] [PATCH 2/5] avformat/mov: Check edit_list_dts_entry_end Michael Niedermayer
2025-06-21 21:15 ` Michael Niedermayer [this message]
2025-06-21 21:15 ` [FFmpeg-devel] [PATCH 4/5] avformat/iff: Check nb_channels == 0 in CHNL Michael Niedermayer
2025-06-21 21:15 ` [FFmpeg-devel] [PATCH 5/5] avcodec/cbs_apv_syntax_template: Check tile_data_size Michael Niedermayer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250621211521.895204-3-michael@niedermayer.cc \
--to=michael@niedermayer.cc \
--cc=ffmpeg-devel@ffmpeg.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Git Inbox Mirror of the ffmpeg-devel mailing list - see https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
This inbox may be cloned and mirrored by anyone:
git clone --mirror https://master.gitmailbox.com/ffmpegdev/0 ffmpegdev/git/0.git
# If you have public-inbox 1.1+ installed, you may
# initialize and index your mirror using the following commands:
public-inbox-init -V2 ffmpegdev ffmpegdev/ https://master.gitmailbox.com/ffmpegdev \
ffmpegdev@gitmailbox.com
public-inbox-index ffmpegdev
Example config snippet for mirrors.
AGPL code for this site: git clone https://public-inbox.org/public-inbox.git