ffmpeg | branch: release/7.0 | Michael Niedermayer <mich...@niedermayer.cc> | Mon Apr 1 22:11:54 2024 +0200| [5469ba6d74dfe34a526edda814e6ac5a922e833c] | committer: Michael Niedermayer
avcodec/apedec: Use NABS to avoid undefined negation Fixes: negation of -2147483648 cannot be represented in type 'int32_t' (aka 'int'); cast to an unsigned type to negate this value to itself Fixes: 67738/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5444313212321792 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit 1887ff250cfd1e69c08bca21cc53e30a39e26818) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5469ba6d74dfe34a526edda814e6ac5a922e833c --- libavcodec/apedec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index 0f48bdff77..7d96182d0c 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -1286,7 +1286,7 @@ static void predictor_decode_stereo_3950(APEContext *ctx, int count) int32_t left = a1 - (unsigned)(a0 / 2); int32_t right = left + (unsigned)a0; - if (FFMAX(FFABS(left), FFABS(right)) > (1<<23)) { + if (FFMIN(FFNABS(left), FFNABS(right)) < -(1<<23)) { ctx->interim_mode = !interim_mode; av_log(ctx->avctx, AV_LOG_VERBOSE, "Interim mode: %d\n", ctx->interim_mode); break; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
