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new 0aa316ec2c tools/target_dec_fuzzer: reduce BMP max pixels to avoid RLE
timeout
0aa316ec2c is described below
commit 0aa316ec2c345d98b9bd1790251567a9bfe911de
Author: Michael Niedermayer <[email protected]>
AuthorDate: Mon Jun 1 00:29:00 2026 +0200
Commit: michaelni <[email protected]>
CommitDate: Fri Jun 5 11:46:17 2026 +0000
tools/target_dec_fuzzer: reduce BMP max pixels to avoid RLE timeout
a valid RLE bitmap can decompress to far more than its input size, an early
end-of-picture code
leaves the rest of the canvas blank, thus we cannot add a check in bmp
decode
Fixes: Timeout
Fixes:
510821718/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BMP_DEC_fuzzer-5011979420106752
Found-by: continuous fuzzing process
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <[email protected]>
---
tools/target_dec_fuzzer.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/target_dec_fuzzer.c b/tools/target_dec_fuzzer.c
index dff354545a..723f7996d7 100644
--- a/tools/target_dec_fuzzer.c
+++ b/tools/target_dec_fuzzer.c
@@ -220,6 +220,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t
size) {
case AV_CODEC_ID_BETHSOFTVID: maxpixels /= 8192; break;
case AV_CODEC_ID_BFI: maxpixels /= 8192; break;
case AV_CODEC_ID_BINKVIDEO: maxpixels /= 32; break;
+ case AV_CODEC_ID_BMP: maxpixels /= 16; break;
case AV_CODEC_ID_BONK: maxsamples /= 1<<20; break;
case AV_CODEC_ID_CAVS: maxpixels /= 1024; break;
case AV_CODEC_ID_CDTOONS: maxpixels /= 1024; break;
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