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I do fuzz test the Tor sources with AFL using the script in [1]. Today I was faced with the afl message :

- - The current memory limit (47.7 TB) is too restrictive, causing the ...

Therefore I re-run this:

torproject@mr-fox ~ $ cd ~; for i in ./tor/src/test/fuzz/fuzz-*; do echo $(./recidivm-0.1.1/recidivm -v $i 2>&1 | tail -n 1) $i ; done | sort -n 140647294041983 ./tor/src/test/fuzz/fuzz-hsdescv2 210556434775808 ./tor/src/test/fuzz/fuzz-descriptor 211071855558638 ./tor/src/test/fuzz/fuzz-microdesc 230618232257983 ./tor/src/test/fuzz/fuzz-consensus 272676600806400 ./tor/src/test/fuzz/fuzz-http 275960232411072 ./tor/src/test/fuzz/fuzz-diff-apply 280371168541696 ./tor/src/test/fuzz/fuzz-vrs 281200098803455 ./tor/src/test/fuzz/fuzz-iptsv2 281298748667644 ./tor/src/test/fuzz/fuzz-extrainfo 281456722575360 ./tor/src/test/fuzz/fuzz-diff

and was wondering about the bug numbers - a previous run few weeks ago gave me the numbers as seen in [1]:

# 40880663 ./tor/src/test/fuzz/fuzz-iptsv2 # 40880757 ./tor/src/test/fuzz/fuzz-consensus # 40880890 ./tor/src/test/fuzz/fuzz-extrainfo # 40885159 ./tor/src/test/fuzz/fuzz-hsdescv2 # 40885224 ./tor/src/test/fuzz/fuzz-http # 40888156 ./tor/src/test/fuzz/fuzz-descriptor # 40897371 ./tor/src/test/fuzz/fuzz-microdesc # 40955570 ./tor/src/test/fuzz/fuzz-vrs

Now I do wonder, if the new linux kernel, a new AFL (changed from 2.39b to 2.46b recently) or what else is causing this issue ?

[1] https://github.com/toralf/torutils/blob/master/fuzz.sh

- -- Toralf PGP C4EACDDE 0076E94E