https://bugs.llvm.org/show_bug.cgi?id=37047
Bug ID: 37047
Summary: libFuzzer: options leak into auto-dictionary
Product: compiler-rt
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: compiler-rt
Assignee: unassignedb...@nondot.org
Reporter: pdk...@gmail.com
CC: llvm-bugs@lists.llvm.org
I've been noticing that libFuzzer options seem to leak into new test cases.
It's noticeable during fuzzing, but particularly in the recommended dictionary.
#343087 REDUCE cov: 17773 ft: 89605 corp: 4129/5942Kb lim: 8 exec/s: 102 rss:
665Mb L: 2336/2344 MS: 3 EraseBytes-PersAutoDict-ChangeByte- DE:
"ignore_remaining_args"-
###### Recommended dictionary. ######
"cleanse_crash" # Uses: 1089
...
"handle_segv" # Uses: 514
...
"workers" # Uses: 515
...
"handle_int" # Uses: 386
...
"merge_control_file" # Uses: 431
...
"handle_fpe" # Uses: 335
...
"use_value_profile" # Uses: 338
"use_feature_frequency" # Uses: 353
...
"use_memmem" # Uses: 283
...
###### End of recommended dictionary. ######
And that's not just a display quirk. Those string are in the files. I don't
know why.
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