790a219284-7527 — curl URL Parser (CURLU API) Fuzzing

Progress

1,000,000 / 1,000,000 iterations (100.0%) — 3817 exec/s

Corpus: 10,133 entries · Started: 2026-10-29T15:41:35+00:00 · Finished: 2026-10-29 15:46:00 · Updated: 2026-10-29 15:46:00

Result

0 total crashes, 0 unique.

Parameters Used

cc	clang
cflags	-fsanitize=address -fsanitize-coverage=trace-pc-guard,indirect-calls -g -O1
configure_flags	--disable-shared --without-ssl --disable-docs --disable-manual --without-libpsl
burst_size	50000
target_execs	1000000
harness_cmd	./fuzz_url -runs=$BURST -artifact_prefix=crashes/ fuzz_corpus
fuzzer	libFuzzer + AddressSanitizer
clang_version	Ubuntu clang version 14.0.0-1ubuntu1.1
build_ok	True

Run Log (last lines)

All Checkpoints (clean passes + crashes)





#8192	pulse  cov: 864 ft: 2061 corp: 660/19Kb exec/s: 2730 rss: 142Mb
#10134	INITED cov: 864 ft: 2076 corp: 665/25Kb exec/s: 2026 rss: 185Mb
#16384	pulse  cov: 864 ft: 2076 corp: 665/25Kb lim: 2114 exec/s: 2730 rss: 191Mb
#32768	pulse  cov: 864 ft: 2076 corp: 665/25Kb lim: 2279 exec/s: 3640 rss: 205Mb
#50000	DONE   cov: 864 ft: 2076 corp: 665/25Kb lim: 2455 exec/s: 3846 rss: 220Mb
Done 50000 runs in 13 second(s)
INFO: Running with entropic power schedule (0xFF, 100).
INFO: Seed: 671651766
INFO: Loaded 1 modules   (27702 inline 8-bit counters): 27702 [0x5726ccdfc440, 0x5726cce03076), 
INFO: Loaded 1 PC tables (27702 PCs): 27702 [0x5726cce03078,0x5726cce6f3d8), 
INFO:    10133 files found in fuzz_corpus
INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes
INFO: seed corpus: files: 10133 min: 1b max: 3705b total: 3384173b rss: 40Mb
#8192	pulse  cov: 864 ft: 2061 corp: 667/19Kb exec/s: 2730 rss: 143Mb
#10134	INITED cov: 864 ft: 2076 corp: 672/25Kb exec/s: 2026 rss: 185Mb
#16384	pulse  cov: 864 ft: 2076 corp: 672/25Kb lim: 2114 exec/s: 2730 rss: 191Mb
#32768	pulse  cov: 864 ft: 2076 corp: 672/25Kb lim: 2279 exec/s: 3640 rss: 204Mb
#50000	DONE   cov: 864 ft: 2076 corp: 672/25Kb lim: 2455 exec/s: 5000 rss: 220Mb
Done 50000 runs in 10 second(s)

#8192	pulse  cov: 864 ft: 2061 corp: 666/19Kb exec/s: 4096 rss: 142Mb
#10134	INITED cov: 864 ft: 2076 corp: 671/25Kb exec/s: 2533 rss: 185Mb
#16384	pulse  cov: 864 ft: 2076 corp: 671/25Kb lim: 2114 exec/s: 3276 rss: 190Mb
#32768	pulse  cov: 864 ft: 2076 corp: 671/25Kb lim: 2279 exec/s: 4096 rss: 204Mb
#50000	DONE   cov: 864 ft: 2076 corp: 671/25Kb lim: 2455 exec/s: 4166 rss: 219Mb
Done 50000 runs in 12 second(s)
INFO: Running with entropic power schedule (0xFF, 100).
INFO: Seed: 2825907450
INFO: Loaded 1 modules   (27702 inline 8-bit counters): 27702 [0x56cf5397c440, 0x56cf53983076), 
INFO: Loaded 1 PC tables (27702 PCs): 27702 [0x56cf53983078,0x56cf539ef3d8), 
INFO:    10133 files found in fuzz_corpus
INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes
INFO: seed corpus: files: 10133 min: 1b max: 3705b total: 3384173b rss: 40Mb
#8192	pulse  cov: 864 ft: 2061 corp: 658/19Kb exec/s: 2730 rss: 142Mb
#10134	INITED cov: 864 ft: 2076 corp: 663/25Kb exec/s: 2533 rss: 185Mb
#16384	pulse  cov: 864 ft: 2076 corp: 663/25Kb lim: 2114 exec/s: 4096 rss: 190Mb
#32768	pulse  cov: 864 ft: 2076 corp: 663/25Kb lim: 2279 exec/s: 6553 rss: 204Mb
#50000	DONE   cov: 864 ft: 2076 corp: 663/25Kb lim: 2455 exec/s: 7142 rss: 218Mb
Done 50000 runs in 7 second(s)
INFO: Running with entropic power schedule (0xFF, 100).
INFO: Seed: 857024484
INFO: Loaded 1 modules   (27702 inline 8-bit counters): 27702 [0x5b06679b8440, 0x5b06679bf076), 
INFO: Loaded 1 PC tables (27702 PCs): 27702 [0x5b06679bf078,0x5b0667a2b3d8), 
INFO:    10133 files found in fuzz_corpus
INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes
INFO: seed corpus: files: 10133 min: 1b max: 3705b total: 3384173b rss: 40Mb
#10134	INITED cov: 864 ft: 2076 corp: 670/25Kb exec/s: 5067 rss: 185Mb
#16384	pulse  cov: 864 ft: 2076 corp: 670/25Kb lim: 2114 exec/s: 5461 rss: 191Mb
#32768	pulse  cov: 864 ft: 2076 corp: 670/25Kb lim: 2279 exec/s: 8192 rss: 205Mb
#50000	DONE   cov: 864 ft: 2076 corp: 670/25Kb lim: 2455 exec/s: 8333 rss: 220Mb
Done 50000 runs in 6 second(s)




INFO: Running with entropic power schedule (0xFF, 100).
INFO: Seed: 3145397683
INFO: Loaded 1 modules   (27702 inline 8-bit counters): 27702 [0x5a2546fa5440, 0x5a2546fac076), 
INFO: Loaded 1 PC tables (27702 PCs): 27702 [0x5a2546fac078,0x5a25470183d8), 
INFO:    10133 files found in fuzz_corpus
INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes
INFO: seed corpus: files: 10133 min: 1b max: 3705b total: 3384173b rss: 40Mb
#10134	INITED cov: 864 ft: 2076 corp: 671/25Kb exec/s: 5067 rss: 185Mb
#16384	pulse  cov: 864 ft: 2076 corp: 671/25Kb lim: 2114 exec/s: 5461 rss: 190Mb
#32768	pulse  cov: 864 ft: 2076 corp: 671/25Kb lim: 2279 exec/s: 6553 rss: 205Mb
#50000	DONE   cov: 864 ft: 2076 corp: 671/25Kb lim: 2455 exec/s: 8333 rss: 219Mb
Done 50000 runs in 6 second(s)
INFO: Running with entropic power schedule (0xFF, 100).
INFO: Seed: 3425307897
INFO: Loaded 1 modules   (27702 inline 8-bit counters): 27702 [0x571b3b875440, 0x571b3b87c076), 
INFO: Loaded 1 PC tables (27702 PCs): 27702 [0x571b3b87c078,0x571b3b8e83d8), 
INFO:    10133 files found in fuzz_corpus
INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes
INFO: seed corpus: files: 10133 min: 1b max: 3705b total: 3384173b rss: 40Mb
#10134	INITED cov: 864 ft: 2076 corp: 664/25Kb exec/s: 5067 rss: 185Mb
#16384	pulse  cov: 864 ft: 2076 corp: 664/25Kb lim: 2114 exec/s: 8192 rss: 191Mb
#32768	pulse  cov: 864 ft: 2076 corp: 664/25Kb lim: 2279 exec/s: 8192 rss: 204Mb
#50000	DONE   cov: 864 ft: 2076 corp: 664/25Kb lim: 2455 exec/s: 10000 rss: 219Mb
Done 50000 runs in 5 second(s)






#	Execs so far	Status	Time	Log / Artifact
1	50,000	clean	2026-10-29 15:41:44	log
2	100,000	clean	2026-10-29 15:41:58	-
3	150,000	clean	2026-10-29 15:42:07	-
4	200,000	clean	2026-10-29 15:42:29	log #8192 pulse cov: 864 ft: 2061 corp: 660/19Kb exec/s: 2730 rss: 142Mb #10134 INITED cov: 864 ft: 2076 corp: 665/25Kb exec/s: 2026 rss: 185Mb #16384 pulse cov: 864 ft: 2076 corp: 665/25Kb lim: 2114 exec/s: 2730 rss: 191Mb #32768 pulse cov: 864 ft: 2076 corp: 665/25Kb lim: 2279 exec/s: 3640 rss: 205Mb #50000 DONE cov: 864 ft: 2076 corp: 665/25Kb lim: 2455 exec/s: 3846 rss: 220Mb Done 50000 runs in 13 second(s)
5	250,000	clean	2026-10-29 15:42:48	log INFO: Running with entropic power schedule (0xFF, 100). INFO: Seed: 671651766 INFO: Loaded 1 modules (27702 inline 8-bit counters): 27702 [0x5726ccdfc440, 0x5726cce03076), INFO: Loaded 1 PC tables (27702 PCs): 27702 [0x5726cce03078,0x5726cce6f3d8), INFO: 10133 files found in fuzz_corpus INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes INFO: seed corpus: files: 10133 min: 1b max: 3705b total: 3384173b rss: 40Mb #8192 pulse cov: 864 ft: 2061 corp: 667/19Kb exec/s: 2730 rss: 143Mb #10134 INITED cov: 864 ft: 2076 corp: 672/25Kb exec/s: 2026 rss: 185Mb #16384 pulse cov: 864 ft: 2076 corp: 672/25Kb lim: 2114 exec/s: 2730 rss: 191Mb #32768 pulse cov: 864 ft: 2076 corp: 672/25Kb lim: 2279 exec/s: 3640 rss: 204Mb #50000 DONE cov: 864 ft: 2076 corp: 672/25Kb lim: 2455 exec/s: 5000 rss: 220Mb Done 50000 runs in 10 second(s)
6	300,000	clean	2026-10-29 15:42:56	log
7	350,000	clean	2026-10-29 15:43:17	log #8192 pulse cov: 864 ft: 2061 corp: 666/19Kb exec/s: 4096 rss: 142Mb #10134 INITED cov: 864 ft: 2076 corp: 671/25Kb exec/s: 2533 rss: 185Mb #16384 pulse cov: 864 ft: 2076 corp: 671/25Kb lim: 2114 exec/s: 3276 rss: 190Mb #32768 pulse cov: 864 ft: 2076 corp: 671/25Kb lim: 2279 exec/s: 4096 rss: 204Mb #50000 DONE cov: 864 ft: 2076 corp: 671/25Kb lim: 2455 exec/s: 4166 rss: 219Mb Done 50000 runs in 12 second(s)
8	400,000	clean	2026-10-29 15:43:34	log INFO: Running with entropic power schedule (0xFF, 100). INFO: Seed: 2825907450 INFO: Loaded 1 modules (27702 inline 8-bit counters): 27702 [0x56cf5397c440, 0x56cf53983076), INFO: Loaded 1 PC tables (27702 PCs): 27702 [0x56cf53983078,0x56cf539ef3d8), INFO: 10133 files found in fuzz_corpus INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes INFO: seed corpus: files: 10133 min: 1b max: 3705b total: 3384173b rss: 40Mb #8192 pulse cov: 864 ft: 2061 corp: 658/19Kb exec/s: 2730 rss: 142Mb #10134 INITED cov: 864 ft: 2076 corp: 663/25Kb exec/s: 2533 rss: 185Mb #16384 pulse cov: 864 ft: 2076 corp: 663/25Kb lim: 2114 exec/s: 4096 rss: 190Mb #32768 pulse cov: 864 ft: 2076 corp: 663/25Kb lim: 2279 exec/s: 6553 rss: 204Mb #50000 DONE cov: 864 ft: 2076 corp: 663/25Kb lim: 2455 exec/s: 7142 rss: 218Mb Done 50000 runs in 7 second(s)
9	450,000	clean	2026-10-29 15:43:49	log INFO: Running with entropic power schedule (0xFF, 100). INFO: Seed: 857024484 INFO: Loaded 1 modules (27702 inline 8-bit counters): 27702 [0x5b06679b8440, 0x5b06679bf076), INFO: Loaded 1 PC tables (27702 PCs): 27702 [0x5b06679bf078,0x5b0667a2b3d8), INFO: 10133 files found in fuzz_corpus INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes INFO: seed corpus: files: 10133 min: 1b max: 3705b total: 3384173b rss: 40Mb #10134 INITED cov: 864 ft: 2076 corp: 670/25Kb exec/s: 5067 rss: 185Mb #16384 pulse cov: 864 ft: 2076 corp: 670/25Kb lim: 2114 exec/s: 5461 rss: 191Mb #32768 pulse cov: 864 ft: 2076 corp: 670/25Kb lim: 2279 exec/s: 8192 rss: 205Mb #50000 DONE cov: 864 ft: 2076 corp: 670/25Kb lim: 2455 exec/s: 8333 rss: 220Mb Done 50000 runs in 6 second(s)
10	500,000	clean	2026-10-29 15:43:56	log
11	550,000	clean	2026-10-29 15:44:09	log
12	600,000	clean	2026-10-29 15:44:22	log
13	650,000	clean	2026-10-29 15:44:28	log
14	700,000	clean	2026-10-29 15:44:42	log INFO: Running with entropic power schedule (0xFF, 100). INFO: Seed: 3145397683 INFO: Loaded 1 modules (27702 inline 8-bit counters): 27702 [0x5a2546fa5440, 0x5a2546fac076), INFO: Loaded 1 PC tables (27702 PCs): 27702 [0x5a2546fac078,0x5a25470183d8), INFO: 10133 files found in fuzz_corpus INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes INFO: seed corpus: files: 10133 min: 1b max: 3705b total: 3384173b rss: 40Mb #10134 INITED cov: 864 ft: 2076 corp: 671/25Kb exec/s: 5067 rss: 185Mb #16384 pulse cov: 864 ft: 2076 corp: 671/25Kb lim: 2114 exec/s: 5461 rss: 190Mb #32768 pulse cov: 864 ft: 2076 corp: 671/25Kb lim: 2279 exec/s: 6553 rss: 205Mb #50000 DONE cov: 864 ft: 2076 corp: 671/25Kb lim: 2455 exec/s: 8333 rss: 219Mb Done 50000 runs in 6 second(s)
15	750,000	clean	2026-10-29 15:44:53	log INFO: Running with entropic power schedule (0xFF, 100). INFO: Seed: 3425307897 INFO: Loaded 1 modules (27702 inline 8-bit counters): 27702 [0x571b3b875440, 0x571b3b87c076), INFO: Loaded 1 PC tables (27702 PCs): 27702 [0x571b3b87c078,0x571b3b8e83d8), INFO: 10133 files found in fuzz_corpus INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes INFO: seed corpus: files: 10133 min: 1b max: 3705b total: 3384173b rss: 40Mb #10134 INITED cov: 864 ft: 2076 corp: 664/25Kb exec/s: 5067 rss: 185Mb #16384 pulse cov: 864 ft: 2076 corp: 664/25Kb lim: 2114 exec/s: 8192 rss: 191Mb #32768 pulse cov: 864 ft: 2076 corp: 664/25Kb lim: 2279 exec/s: 8192 rss: 204Mb #50000 DONE cov: 864 ft: 2076 corp: 664/25Kb lim: 2455 exec/s: 10000 rss: 219Mb Done 50000 runs in 5 second(s)
16	800,000	clean	2026-10-29 15:44:59	log
17	850,000	clean	2026-10-29 15:45:11	log
18	900,000	clean	2026-10-29 15:45:27	log
19	950,000	clean	2026-10-29 15:45:40	log
20	1,000,000	clean	2026-10-29 15:45:53	log