From: Zhao Zhili <quinkblack@foxmail.com>
To: ffmpeg-devel@ffmpeg.org
Cc: Zhao Zhili <zhilizhao@tencent.com>
Subject: [FFmpeg-devel] [PATCH 1/2] avcodec/avcodec: fix UB NULL+0
Date: Wed, 12 Apr 2023 01:49:26 +0800
Message-ID: <tencent_1514276BB8BD962ACD23A0354DA1CFC0D507@qq.com> (raw)
From: Zhao Zhili <zhilizhao@tencent.com>
---
libavcodec/avcodec.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/libavcodec/avcodec.c b/libavcodec/avcodec.c
index fb1362290f..5a96899d50 100644
--- a/libavcodec/avcodec.c
+++ b/libavcodec/avcodec.c
@@ -44,10 +44,11 @@
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
{
- int i;
+ size_t i;
for (i = 0; i < count; i++) {
- int r = func(c, (char *)arg + i * size);
+ size_t offset = i * size;
+ int r = func(c, FF_PTR_ADD((char *)arg, offset));
if (ret)
ret[i] = r;
}
--
2.25.1
_______________________________________________
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 reply other threads:[~2023-04-11 9:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-11 17:49 Zhao Zhili [this message]
2023-04-26 12:49 ` "zhilizhao(赵志立)"
2023-05-04 7:01 ` "zhilizhao(赵志立)"
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=tencent_1514276BB8BD962ACD23A0354DA1CFC0D507@qq.com \
--to=quinkblack@foxmail.com \
--cc=ffmpeg-devel@ffmpeg.org \
--cc=zhilizhao@tencent.com \
/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