PHP Fatal error: getRemainingStreams() must be of the type int

[dwreski]

This is after running successfully for more than an hour on our site (replaced with "example" here; link disabled). This is using the version available today. What more can I do to troubleshoot this?

[200] httpx://twitter.com/share?url=httpx://example.com/advisories/archlinux/archlinux-201503-3-lib32-elfutils-directory-traversal&text=ArchLinux:%20201503-3:%20lib32-elfutils:%20directory%20traversal
----------------------------------------------------------------
Concurrency: 9, Queue size: 3757, Failures: 17797/64480 (27.60%)
Rate: 19.60 r/sec, 639.60 ms/r
Uptime: 01h 02m 03s
PHP Fatal error:  Uncaught TypeError: Return value of Amp\Http\Client\Connection\Internal\Http2ConnectionProcessor::getRemainingStreams() must be of the type int, float returned in /var/www/webstage.example.com-443/fink/vendor/amphp/http-client/src/Connection/Internal/Http2ConnectionProcessor.php:906
Stack trace:
#0 /var/www/webstage.example.com-443/fink/vendor/amphp/http-client/src/Connection/Http2Connection.php(55): Amp\Http\Client\Connection\Internal\Http2ConnectionProcessor->getRemainingStreams()
#1 /var/www/webstage.example.com-443/fink/vendor/amphp/amp/lib/functions.php(90): Amp\Http\Client\Connection\Http2Connection->Amp\Http\Client\Connection\{closure}()
#2 /var/www/webstage.example.com-443/fink/vendor/amphp/http-client/src/Connection/Http2Connection.php(66): Amp\call()
#3 /var/www/webstage.example.com-443/fink/vendor/amphp/http-client/src/Connection/ConnectionLimitingPool.php(299): Amp\Http\Client\Connection\Http2Connection->getStream()
#4 /var/www/webstage.example.com-443/fink/vend in /var/www/webstage.example.com-443/fink/vendor/amphp/http-client/src/Connection/Internal/Http2ConnectionProcessor.php on line 906 

[dantleech]

Possibly an Amphp issue (cc @kelunik ) (cannot see initially how that method could return a float)

[dantleech]

But otherwise can you provide the full stack trace? We could be more defensive.

Also, not sure if it can be related, but the prior URL looks very odd httpx ? Fink should not have crawled that URL.

[dwreski]

How do I provide a full stack trace?

The httpx was me substituting in place of https to prevent it from being crawled here or becoming an actual URL, sorry.

[dantleech]

I'd assumed there was more of the stack trace in the original trace you provided? Maybe indicating at which point Fink called the Amp HTTP client? But no worries, there should be only one place that does that :D

[dantleech]

Maybe you could try changing:

fink/lib/Model/Dispatcher.php

Line 86 in cc30101

} catch (Exception $exception) {

to \Throwable instead? it should then catch this error and continue I think (but could be that the HTTP client is broken at this point)

[dwreski]

I don't understand "\Throwable" - replace the whole line with just that?

[dantleech]

No so that it becomes:

            try {
                yield from $this->crawler->crawl($url, $this->queue, $reportBuilder);
            } catch (\Throwable $exception) {
                $reportBuilder->withException($exception);
            }

[dwreski]

Okay, running.

I also notice the above link that caused the error isn't actually a 404, so not sure why it thinks that it is. Perhaps it just took too long to respond? Here's the real link.

https://twitter.com/share?url=https://linuxsecurity.com/advisories/archlinux/archlinux-201503-3-lib32-elfutils-directory-traversal&text=ArchLinux:%20201503-3:%20lib32-elfutils:%20directory%20traversal

[dantleech]

hmm, it says 200 though? That link is also fine if I run it through fink directly -- but if it were caused by a link it would be the next one which isn't shown.

[dwreski]

Ah yes, apologies. It seems virtually every link that's somehow associated with social media or a "sharer.php" redirect fails. Here are two that were marked red that I managed to capture.

https://www.facebook.com/sharer.php?u=https://linuxsecurity.com/news/hackscracks/new-attack-lets-android-apps-capture-loudspeaker-data-without-any-permission

https://www.linkedin.com/shareArticle?mini=true&url=https://linuxsecurity.com/news/hackscracks/lazarus-pivots-to-linux-attacks-through-dacls-trojan

Screenshot attached. Thanks for the great support.

[dwreski]

It failed again, perhaps due to the changes I made.

PHP Fatal error: Uncaught TypeError: Argument 1 passed to DTL\Extension\Fink\Model\ReportBuilder::withException() must be an instance of Exception, instance of TypeError given, called in /var/www/webstage.linuxsecurity.com-443/fink/vendor/dantleech/fink/lib/Model/Dispatcher.php on line 87 and defined in /var/www/webstage.linuxsecurity.com-443/fink/vendor/dantleech/fink/lib/Model/ReportBuilder.php:73 Stack trace: #0 /var/www/webstage.linuxsecurity.com-443/fink/vendor/dantleech/fink/lib/Model/Dispatcher.php(87): DTL\Extension\Fink\Model\ReportBuilder->withException() #1 [internal function]: DTL\Extension\Fink\Model\Dispatcher->DTL\Extension\Fink\Model\{closure}() #2 /var/www/webstage.linuxsecurity.com-443/fink/vendor/amphp/amp/lib/Coroutine.php(115): Generator->throw() #3 /var/www/webstage.linuxsecurity.com-443/fink/vendor/amphp/amp/lib/Failure.php(33): Amp\Coroutine->Amp\{closure}() #4 /var/www/webstage.linuxsecurity.com-443/fink/vendor/amphp/amp/lib/Internal/Placeholder.php(143): Amp\Failure->onResolve() #5 /var/www/webstage. in /var/www/webstage.linuxsecurity.com-443/fink/vendor/dantleech/fink/lib/Model/ReportBuilder.php on line 73

[dwreski]

84 try {
85 yield from $this->crawler->crawl($url, $this->queue, $reportBuilder);
86 } catch (\Throwable $exception) {
87 $reportBuilder->withException($exception);
88 }

[kelunik]

@dwreski Are you on a 32 bit platform?

[dwreski]

No.

uname -a
Linux sage.inside.example.com 5.7.6-201.fc32.x86_64 #1 SMP Mon Jun 29 15:15:52 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

[kelunik]

@dwreski Could you check whether amphp/http-client@d272ceb changes anything?