[FFmpeg-devel] [PATCH 3/7] tools/target_dem_fuzzer: Force interrupt for HLS

Michael Niedermayer michael at niedermayer.cc
Sun Dec 5 23:19:03 EET 2021


Fixes: Timeout
Fixes: 41580/clusterfuzz-testcase-minimized-ffmpeg_dem_HLS_fuzzer-5059099224571904

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 tools/target_dem_fuzzer.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/target_dem_fuzzer.c b/tools/target_dem_fuzzer.c
index 6ee793a28ba..687989ccc89 100644
--- a/tools/target_dem_fuzzer.c
+++ b/tools/target_dem_fuzzer.c
@@ -172,6 +172,10 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
         avfmt->interrupt_callback.callback = interrupt_cb;
     }
 
+    // HLS uses a loop with sleep, we thus must breakout or we timeout
+    if (!strcmp(fmt->name, "hls"))
+        interrupt_counter &= 31;
+
     if (!io_buffer_size || size / io_buffer_size > maxblocks)
         io_buffer_size = size;
 
-- 
2.17.1



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