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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-07 18:50:49 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-14 00:21:49 +0200 |
| commit | edb8d29ca5fef83ab7a89f24fe23411c0f4f8f0d (patch) | |
| tree | b1967faa6b6f2c859354bd148ff1d44b66b41afe | |
| parent | bf4b8b1677949c54604723eebb1a10f8f9ff91d5 (diff) | |
| download | ffmpeg-edb8d29ca5fef83ab7a89f24fe23411c0f4f8f0d.tar.gz | |
avcodec/xwddec: Check bpp more completely
Fixes out of array access
Fixes: 1399/clusterfuzz-testcase-minimized-4866094172995584
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 441026fcb13ac23aa10edc312bdacb6445a0ad06)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/xwddec.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/xwddec.c b/libavcodec/xwddec.c index 64cd8418a2..8b0845fc01 100644 --- a/libavcodec/xwddec.c +++ b/libavcodec/xwddec.c @@ -157,9 +157,9 @@ static int xwd_decode_frame(AVCodecContext *avctx, void *data, case XWD_GRAY_SCALE: if (bpp != 1 && bpp != 8) return AVERROR_INVALIDDATA; - if (pixdepth == 1) { + if (bpp == 1 && pixdepth == 1) { avctx->pix_fmt = AV_PIX_FMT_MONOWHITE; - } else if (pixdepth == 8) { + } else if (bpp == 8 && pixdepth == 8) { avctx->pix_fmt = AV_PIX_FMT_GRAY8; } break; |