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commit fcae8974c01fb91ab9049a997a3ba182bc3d7018 Author: Michael Niedermayer <[email protected]> AuthorDate: Wed Mar 4 00:22:30 2026 +0100 Commit: Michael Niedermayer <[email protected]> CommitDate: Tue May 5 18:55:06 2026 +0200 avcodec/magicyuv: fix small median images Fixes: out of array acces Fixes: 487838419/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MAGICYUV_DEC_fuzzer-4683933221715968 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> (cherry picked from commit d5e2e678abd315ae36afaec3e976fedc11fc0608) Signed-off-by: Michael Niedermayer <[email protected]> --- libavcodec/magicyuv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libavcodec/magicyuv.c b/libavcodec/magicyuv.c index 13cb346119..08c3e6f9f7 100644 --- a/libavcodec/magicyuv.c +++ b/libavcodec/magicyuv.c @@ -342,7 +342,8 @@ static int magy_decode_slice(AVCodecContext *avctx, void *tdata, s->llviddsp.add_left_pred(dst, dst, width, 0); dst += stride; } - lefttop = left = dst[0]; + if (1 + interlaced < height) + lefttop = left = dst[0]; for (k = 1 + interlaced; k < height; k++) { s->llviddsp.add_median_pred(dst, dst - fake_stride, dst, width, &left, &lefttop); _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
