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fix data race in x509->response #331

Merged
merged 1 commit into from
Aug 23, 2023
Merged

fix data race in x509->response #331

merged 1 commit into from
Aug 23, 2023

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tarunKoyalwar
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Proposed Changes

Possible Reason

  • this happens randomly (50%) even with race detector on . and issue seems to be with how append() function internally behaves i.e
    append(arr , elem) when using append new allocated slice is only returned if elem does not fit into existing array arr . if arr has enough space to fit elem then no new memory is allocated and arr itself is returned .
    our unexpected way of using append(arr,elem) was the cause but is now resolved since we are creating new slice and not using append for that

@tarunKoyalwar tarunKoyalwar self-assigned this Aug 22, 2023
@tarunKoyalwar tarunKoyalwar linked an issue Aug 22, 2023 that may be closed by this pull request
@tarunKoyalwar
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  • tested x10 times no data race was detected
$ cat ~/test-templates/newips.txt | go run -race  . -t ~/test-templates/vhost-enum-flow.yaml

                     __     _
   ____  __  _______/ /__  (_)
  / __ \/ / / / ___/ / _ \/ /
 / / / / /_/ / /__/ /  __/ /
/_/ /_/\__,_/\___/_/\___/_/   v3.0.0-dev

		projectdiscovery.io

[INF] Current nuclei version: v3.0.0-dev (development)
[INF] Current nuclei-templates version: v9.6.1 (latest)
[INF] New templates added in latest release: 198
[INF] Templates loaded for current scan: 1
[INF] Targets loaded for current scan: 20
[INF] Running httpx on input host
[INF] Found 20 URL from httpx
[vhost-enum-flow] [http] [info] https://3.98.63.202/ [VHOST: uberflip.com, SC: 404, CL: 9607]
[vhost-enum-flow] [http] [info] https://52.60.165.183/ [VHOST: uberflip.com, SC: 404, CL: 9599]
[vhost-enum-flow] [http] [info] https://104.16.100.52/ [VHOST: hackerone.com, SC: 302, CL: 92]

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@dogancanbakir dogancanbakir left a comment

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LGTM.
Couldn't repro the issue.

@ehsandeep ehsandeep merged commit 3371c49 into dev Aug 23, 2023
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@ehsandeep ehsandeep deleted the fix-data-race-x509 branch August 23, 2023 11:13
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data race in tlsx due to "Convertx509toResponse()"
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