Fixes: Segfault (not reproducable with asm, which made this hard to debug) Fixes: decoding errors Fixes: 19854/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5729372837511168
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/x86/diracdsp.asm | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libavcodec/x86/diracdsp.asm b/libavcodec/x86/diracdsp.asm index cc8a26fca5..a18bda113e 100644 --- a/libavcodec/x86/diracdsp.asm +++ b/libavcodec/x86/diracdsp.asm @@ -294,8 +294,9 @@ cglobal dequant_subband_32, 7, 7, 4, src, dst, stride, qf, qs, tot_v, tot_h add srcq, mmsize add dstq, mmsize - sub tot_hd, 4 + sub tot_hq, 4 jg .loop_h + lea srcq, [srcq + 4*tot_hq] add r3, strideq dec tot_vd -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
