Fixes: runtime error: shift exponent -7 is negative Fixes: 3902/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_EXR_fuzzer-6081926122176512
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/exr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/exr.c b/libavcodec/exr.c index f08576af22..47f59bd638 100644 --- a/libavcodec/exr.c +++ b/libavcodec/exr.c @@ -558,7 +558,7 @@ static int huf_decode(const uint64_t *hcode, const HufDec *hdecod, while (lc > 0) { const HufDec pl = hdecod[(c << (HUF_DECBITS - lc)) & HUF_DECMASK]; - if (pl.len) { + if (pl.len && lc >= pl.len) { lc -= pl.len; get_code(pl.lit, rlc, c, lc, gb, out, oe, outb); } else { -- 2.16.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
