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[FFmpeg-devel,2/2] tools/target_dec_fuzzer: Adjust threshold for PNG and APNG

Message ID 20200407205353.2212-2-michael@niedermayer.cc
State Accepted
Commit 4f5498277301ad5edbc92d28d5c1e46084a1df36
Headers show
Series [FFmpeg-devel,1/2] avcodec/pngdec: Check length in fdAT | expand

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Context Check Description
andriy/ffmpeg-patchwork success Make fate finished

Commit Message

Michael Niedermayer April 7, 2020, 8:53 p.m. UTC 
Fixes: Timeout (84sec -> 2sec)
Fixes: 21127/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APNG_fuzzer-5098412367413248

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 tools/target_dec_fuzzer.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/tools/target_dec_fuzzer.c b/tools/target_dec_fuzzer.c
index 8dc5f0dac4..b0a7c3a9fd 100644
--- a/tools/target_dec_fuzzer.c
+++ b/tools/target_dec_fuzzer.c
@@ -157,6 +157,8 @@  int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
     case AV_CODEC_ID_MSRLE:       maxpixels  /= 16;    break;
     case AV_CODEC_ID_MSS2:        maxpixels  /= 16384; break;
     case AV_CODEC_ID_MSZH:        maxpixels  /= 128;   break;
+    case AV_CODEC_ID_PNG:         maxpixels  /= 128;   break;
+    case AV_CODEC_ID_APNG:        maxpixels  /= 128;   break;
     case AV_CODEC_ID_QTRLE:       maxpixels  /= 16;    break;
     case AV_CODEC_ID_RASC:        maxpixels  /= 16;    break;
     case AV_CODEC_ID_SANM:        maxpixels  /= 16;    break;