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From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 14/15] avcodec/motion_est: Fix score squaring overflow
Date: Fri,  5 Jul 2024 02:21:55 +0200
Message-ID: <20240705002156.1964272-14-michael@niedermayer.cc> (raw)
In-Reply-To: <20240705002156.1964272-1-michael@niedermayer.cc>

Fixes: CID1604552 Overflowed constant

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavcodec/motion_est.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/motion_est.c b/libavcodec/motion_est.c
index 554fc9780e2..e4f17fb2d86 100644
--- a/libavcodec/motion_est.c
+++ b/libavcodec/motion_est.c
@@ -1454,7 +1454,7 @@ static inline int direct_search(MpegEncContext * s, int mb_x, int mb_y)
         s->b_direct_mv_table[mot_xy][0]= 0;
         s->b_direct_mv_table[mot_xy][1]= 0;
 
-        return 256*256*256*64;
+        return 256*256*256*64-1;
     }
 
     c->xmin= xmin;
-- 
2.45.2

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  parent reply	other threads:[~2024-07-05  0:23 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-05  0:21 [FFmpeg-devel] [PATCH 01/15] avcodec/xsubdec: Check parse_timecode() Michael Niedermayer
2024-07-05  0:21 ` [FFmpeg-devel] [PATCH 02/15] avcodec/cri: Check length Michael Niedermayer
2024-07-05  0:21 ` [FFmpeg-devel] [PATCH 03/15] avcodec/dxv: Fix type in get_opcodes() Michael Niedermayer
2024-07-05  0:21 ` [FFmpeg-devel] [PATCH 04/15] avcodec/golomb: Document return for get_ur_golomb_jpegls() and get_sr_golomb_flac() Michael Niedermayer
2024-07-05  0:21 ` [FFmpeg-devel] [PATCH 05/15] avcodec/golomb: Assert that k is in the supported range for get_ur/sr_golomb() Michael Niedermayer
2024-07-05  0:21 ` [FFmpeg-devel] [PATCH 06/15] avcodec/hw_base_encode: Simplify EOF check Michael Niedermayer
2024-07-05  0:21 ` [FFmpeg-devel] [PATCH 07/15] avcodec/iff: Use signed count Michael Niedermayer
2024-07-05  0:21 ` [FFmpeg-devel] [PATCH 08/15] avcodec/imm4: check cbphi for error Michael Niedermayer
2024-07-05  0:21 ` [FFmpeg-devel] [PATCH 09/15] avcodec/leaddec: Check init_get_bits8() for failure Michael Niedermayer
2024-07-05  0:21 ` [FFmpeg-devel] [PATCH 10/15] avcodec/loco: check get_ur_golomb_jpegls() " Michael Niedermayer
2024-07-05  0:21 ` [FFmpeg-devel] [PATCH 11/15] avcodec/loco: Check loco_get_rice() " Michael Niedermayer
2024-07-05  0:21 ` [FFmpeg-devel] [PATCH 12/15] avcodec/me_cmp: Fix type check Michael Niedermayer
2024-07-05  0:21 ` [FFmpeg-devel] [PATCH 13/15] avcodec/mlpenc: Use 64 for ml, mr Michael Niedermayer
2024-07-05  0:21 ` Michael Niedermayer [this message]
2024-07-05  0:21 ` [FFmpeg-devel] [PATCH 15/15] avcodec/pixlet: Simplify pfx computation Michael Niedermayer
2024-07-12 20:41 ` [FFmpeg-devel] [PATCH 01/15] avcodec/xsubdec: Check parse_timecode() Michael Niedermayer

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