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Bug 1838449 - ipp/socket backends connect to turned off device for eternity (contimeout is not applied)
Summary: ipp/socket backends connect to turned off device for eternity (contimeout is ...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: cups
Version: 8.4
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: 8.0
Assignee: Zdenek Dohnal
QA Contact: Petr Dancak
URL:
Whiteboard:
Depends On:
Blocks: 1689207
TreeView+ depends on / blocked
 
Reported: 2020-05-21 07:59 UTC by Zdenek Dohnal
Modified: 2020-11-04 01:43 UTC (History)
3 users (show)

Fixed In Version: cups-2.2.6-36.el8
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 1838455 (view as bug list)
Environment:
Last Closed: 2020-11-04 01:42:20 UTC
Type: Bug
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)
Proposed patch (506 bytes, patch)
2020-05-21 07:59 UTC, Zdenek Dohnal
no flags Details | Diff


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:4469 0 None None None 2020-11-04 01:42:38 UTC

Description Zdenek Dohnal 2020-05-21 07:59:34 UTC
Created attachment 1690547 [details]
Proposed patch

The bug was found during solving https://bugzilla.redhat.com/show_bug.cgi?id=1689207 .

It was found out that httpAddrConnect2() now sets errno EINPROGRESS when it tries to connect to a device which is turned off/network is down/ or when any 'device unreachable' scenarios.

It influences ipp and socket backends, which don't catch EINPROGRESS -> contimeout is not applied, resulting into the backend is running with a job till the job is cancelled manually.

Reported upstream here https://github.com/apple/cups/pull/5782

The fix will set 2 different errnos now:

1) ETIMEDOUT when remaining time in httpAddrConnect2() is reached
2) EHOSTDOWN when all addresses are tried and there are no open file descriptors

This will make backends to apply contimeout and the job will be retried/aborted (according print queue error policy) and queue disabled in the future.

Comment 12 errata-xmlrpc 2020-11-04 01:42:20 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Low: cups security and bug fix update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2020:4469


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