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14 commits

Author SHA1 Message Date
Nikita Popov
2f95af996f Disable InfiniteIterator class while fuzzing 
The combination of LimitIterator and InfiniteIterator can cause
effectively infinite loops that bypass the executor step limit.
 2020-09-04 10:59:55 +02:00
Nikita Popov
05cd31ef64 Extend function blacklist in execute fuzzer 
Add pfsockopen and stream_socket_server.
 2020-09-02 17:30:19 +02:00
Nikita Popov
bb1d0319d7 Fix typo 
This was supposed to include the header, not the C file...
 2020-08-27 16:57:09 +02:00
Nikita Popov
a88226d116 Generate execute corpus in generate_all.php 
And add crypt() to the function blacklist, it can be very slow.
 2020-08-27 16:34:36 +02:00
Nikita Popov
c29838c561 Add experimental "execute" fuzzer 
This is an end-to-end fuzzer that executes arbitrary PHP code.

We replace the executor with a finite-step executor to avoid
getting stuck in loops or recursion.
 2020-08-27 13:06:24 +02:00
Nikita Popov
b0b836175c Extract some common fuzzer code 2020-06-30 15:05:02 +02:00
twosee
88355dd338 Constify char * arguments of APIs 
Closes GH-5676.
 2020-06-08 10:38:45 +02:00
Christoph M. Becker
dabc28d182 Fix #78880: Spelling error report 
We fix the most often occuring typos according to a recent codespell
report[1] in tests, code comments and documentation.

[1] <https://fossies.org/linux/test/php-src-master-f8f48ce.191129.tar.gz/codespell.html>.
 2019-12-21 11:58:00 +01:00
Nikita Popov
991a0250b5 Reduce oniguruma retry limit in fuzzer 
For some patterns matching may take quite long even at retry limit
100000 and it seems that this is not easy to fix on the oniguruma
side.

Reduce the retry limit by another factor of 10 in hope of reducing
timeouts.
 2019-11-02 10:40:41 +01:00
Nikita Popov
bd21e202b9 Reduce oniguruma limits in fuzzing sapi 
The defaults are fairly conservative and may still take quite a
bit to match a single expression. Reduce them by a factor of 10x
to speed up fuzzing.
 2019-10-08 17:38:49 +02:00
Nikita Popov
7e295da81c Limit max length for parser fuzzer 
We're getting some very large inputs (~500KB) on OSS-Fuzz, which
slot down performance a lot. Let's try limiting this, starting
with a still fairly large value of 64KB.

Also remove the max_execution_time limit, so that slow test cases
cause a genuine libfuzzer timeout and we may investigate them.
 2019-09-26 10:45:47 +02:00
Gabriel Caruso
5d6e923d46
Remove mention of PHP major version in Copyright headers 
Closes GH-4732.
 2019-09-25 14:51:43 +02:00
Nikita Popov
c4e2ca607f Various improvements to fuzzer SAPIs 2019-09-16 16:04:10 +02:00
Stanislav Malyshev
41f45647f9 Add fuzzer SAPIs to the core 2019-09-16 16:04:09 +02:00