From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 5/5] avcodec/exr: Fix preview overflow
Date: Fri, 3 May 2024 23:55:02 +0200
Message-ID: <20240503215502.1509887-5-michael@niedermayer.cc> (raw)
In-Reply-To: <20240503215502.1509887-1-michael@niedermayer.cc>
Fixes: CID1515456 Unintentional integer overflow
Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavcodec/exr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/exr.c b/libavcodec/exr.c
index 8bd39f78a45..4bac0be89b2 100644
--- a/libavcodec/exr.c
+++ b/libavcodec/exr.c
@@ -1943,7 +1943,7 @@ static int decode_header(EXRContext *s, AVFrame *frame)
"preview", 16)) >= 0) {
uint32_t pw = bytestream2_get_le32(gb);
uint32_t ph = bytestream2_get_le32(gb);
- uint64_t psize = pw * ph;
+ uint64_t psize = pw * (uint64_t)ph;
if (psize > INT64_MAX / 4) {
ret = AVERROR_INVALIDDATA;
goto fail;
--
2.43.2
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next prev parent reply other threads:[~2024-05-03 21:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-03 21:54 [FFmpeg-devel] [PATCH 1/5] avcodec/decode: decode_simple_internal() only implements audio and video Michael Niedermayer
2024-05-03 21:54 ` [FFmpeg-devel] [PATCH 2/5] avcodec/dovi_rpuenc: initialize profile Michael Niedermayer
2024-05-03 21:55 ` [FFmpeg-devel] [PATCH 3/5] avcodec/dovi_rpuenc: fix compaatibility Michael Niedermayer
2024-05-03 21:55 ` [FFmpeg-devel] [PATCH 4/5] avcodec/dovi_rpuenc: Initialize bl_compat_id Michael Niedermayer
2024-05-03 22:21 ` Andreas Rheinhardt
2024-05-03 23:38 ` Michael Niedermayer
2024-05-04 9:50 ` Andreas Rheinhardt
2024-05-04 18:26 ` Michael Niedermayer
2024-05-03 21:55 ` Michael Niedermayer [this message]
2024-05-13 1:35 ` [FFmpeg-devel] [PATCH 1/5] avcodec/decode: decode_simple_internal() only implements audio and video Michael Niedermayer
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