go-ethereum/tests/fuzzers
Arpit Temani 2321e64ed7
V0.2.16 candidate (#373)
* merge geth v1.10.15

* fix: Removed FastSync from cli server

* fix: TestHeadersRLPStorage

* Added t.skip(ETH2 in bor)

* fix: flow in create consensus engine

* bumped version

* Fix typo

* increase block time

* remove file

* bumped version

* merge gethv1.10.17

* bumped version

* fix failing tests

* Bump Go version to v1.18 (#368)

* Bump Go version to v1.18.1

* Build using netgo tag

This will create a static build using Go native networking stack.

Checked and it works stable for all archs and distros.

* Fix meta

* Bump version

* Meta as stable

Co-authored-by: Shivam Sharma <shivam691999@gmail.com>
Co-authored-by: Manav Darji <manavdarji.india@gmail.com>
Co-authored-by: Sandeep Sreenath <sandeep.sreenath@gmail.com>
Co-authored-by: Victor Castell <victor@victorcastell.com>
2022-05-06 12:31:48 +02:00
..
abi tests/fuzzers/abi: fixed one-off panic with int.Min64 value (#22233) 2021-01-25 21:40:14 +01:00
bitutil tests/fuzzers: fix false positive in bitutil fuzzer (#22076) 2020-12-27 21:58:39 +01:00
bls12381 all: add go:build lines (#23468) 2021-08-25 18:46:29 +02:00
bn256 V0.2.16 candidate (#373) 2022-05-06 12:31:48 +02:00
difficulty consensus/ethash: implement faster difficulty calculators (#21976) 2020-12-11 11:06:44 +01:00
keystore tests/fuzzers: improve the fuzzers (#21829) 2020-11-13 12:36:38 +01:00
les tests/fuzzers: fix goroutine leak in les fuzzer (#22455) 2021-03-16 09:43:33 +01:00
rangeproof core, eth, ethdb, trie: simplify range proofs 2021-04-29 10:59:08 +03:00
rlp tests/fuzzers: improve the fuzzers (#21829) 2020-11-13 12:36:38 +01:00
runtime common,crypto: move fuzzers out of core (#22029) 2020-12-23 17:44:45 +01:00
secp256k1 V0.2.16 candidate (#373) 2022-05-06 12:31:48 +02:00
snap V0.2.16 candidate (#373) 2022-05-06 12:31:48 +02:00
stacktrie V0.2.16 candidate (#373) 2022-05-06 12:31:48 +02:00
trie core, light, tests, trie: add state metrics (#23433) 2021-08-24 22:00:42 +03:00
txfetcher tests/fuzzers: improve the fuzzers (#21829) 2020-11-13 12:36:38 +01:00
vflux V0.2.16 candidate (#373) 2022-05-06 12:31:48 +02:00
README.md all: fix typos in comments (#21118) 2020-05-25 10:21:28 +02:00

Fuzzers

To run a fuzzer locally, you need go-fuzz installed.

First build a fuzzing-binary out of the selected package:

(cd ./rlp && CGO_ENABLED=0 go-fuzz-build .)

That command should generate a rlp-fuzz.zip in the rlp/ directory. If you are already in that directory, you can do

[user@work rlp]$ go-fuzz
2019/11/26 13:36:54 workers: 6, corpus: 3 (3s ago), crashers: 0, restarts: 1/0, execs: 0 (0/sec), cover: 0, uptime: 3s
2019/11/26 13:36:57 workers: 6, corpus: 3 (6s ago), crashers: 0, restarts: 1/0, execs: 0 (0/sec), cover: 1054, uptime: 6s
2019/11/26 13:37:00 workers: 6, corpus: 3 (9s ago), crashers: 0, restarts: 1/8358, execs: 25074 (2786/sec), cover: 1054, uptime: 9s
2019/11/26 13:37:03 workers: 6, corpus: 3 (12s ago), crashers: 0, restarts: 1/8497, execs: 50986 (4249/sec), cover: 1054, uptime: 12s
2019/11/26 13:37:06 workers: 6, corpus: 3 (15s ago), crashers: 0, restarts: 1/9330, execs: 74640 (4976/sec), cover: 1054, uptime: 15s
2019/11/26 13:37:09 workers: 6, corpus: 3 (18s ago), crashers: 0, restarts: 1/9948, execs: 99482 (5527/sec), cover: 1054, uptime: 18s
2019/11/26 13:37:12 workers: 6, corpus: 3 (21s ago), crashers: 0, restarts: 1/9428, execs: 122568 (5836/sec), cover: 1054, uptime: 21s
2019/11/26 13:37:15 workers: 6, corpus: 3 (24s ago), crashers: 0, restarts: 1/9676, execs: 145152 (6048/sec), cover: 1054, uptime: 24s
2019/11/26 13:37:18 workers: 6, corpus: 3 (27s ago), crashers: 0, restarts: 1/9855, execs: 167538 (6205/sec), cover: 1054, uptime: 27s
2019/11/26 13:37:21 workers: 6, corpus: 3 (30s ago), crashers: 0, restarts: 1/9645, execs: 192901 (6430/sec), cover: 1054, uptime: 30s
2019/11/26 13:37:24 workers: 6, corpus: 3 (33s ago), crashers: 0, restarts: 1/9967, execs: 219294 (6645/sec), cover: 1054, uptime: 33s

Otherwise:

go-fuzz -bin ./rlp/rlp-fuzz.zip

Notes

Once a 'crasher' is found, the fuzzer tries to avoid reporting the same vector twice, so stores the fault in the suppressions folder. Thus, if you e.g. make changes to fix a bug, you should remove all data from the suppressions-folder, to verify that the issue is indeed resolved.

Also, if you have only one and the same exit-point for multiple different types of test, the suppression can make the fuzzer hide different types of errors. So make sure that each type of failure is unique (for an example, see the rlp fuzzer, where a counter i is used to differentiate between failures:

		if !bytes.Equal(input, output) {
			panic(fmt.Sprintf("case %d: encode-decode is not equal, \ninput : %x\noutput: %x", i, input, output))
		}