ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Tue Sep 5 02:17:40 2023 +0200| [d897f82cf8f39cdb770ab433b018ebd840bb2237] | committer: Michael Niedermayer
avcodec/vmixdec: Fix signed integer overflow in dc Fixes: signed integer overflow: 2147483181 + 1024 cannot be represented in type 'int' Fixes: 61117/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VMIX_fuzzer-5387692433866752 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d897f82cf8f39cdb770ab433b018ebd840bb2237 --- libavcodec/vmixdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/vmixdec.c b/libavcodec/vmixdec.c index 962ab8339b..d6b6e3557f 100644 --- a/libavcodec/vmixdec.c +++ b/libavcodec/vmixdec.c @@ -148,7 +148,7 @@ static int decode_dcac(AVCodecContext *avctx, ac_run = get_ue_golomb_long(ac_gb); } - block[0] = (dc << lshift) + add; + block[0] = ((unsigned)dc << lshift) + (unsigned)add; s->idsp.idct_put(dst + x, linesize, block); } _______________________________________________ ffmpeg-cvslog mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
