Bug 1037142 - ivtv-utils FTBFS if "-Werror=format-security" flag is used
Summary: ivtv-utils FTBFS if "-Werror=format-security" flag is used
Alias: None
Product: Fedora
Classification: Fedora
Component: ivtv-utils
Version: rawhide
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Axel Thimm
QA Contact: Fedora Extras Quality Assurance
Depends On:
Blocks: 1038083 1106810
TreeView+ depends on / blocked
Reported: 2013-12-03 03:14 UTC by Dhiru Kholia
Modified: 2014-07-08 03:29 UTC (History)
4 users (show)

Fixed In Version: ivtv-utils-1.4.0-17.fc21
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2014-07-08 03:29:41 UTC
Type: ---

Attachments (Terms of Use)
Patch for rawhide (1.84 KB, patch)
2014-06-12 00:26 UTC, Yaakov Selkowitz
no flags Details | Diff
git format-patch (2.31 KB, patch)
2014-06-27 00:08 UTC, Yaakov Selkowitz
no flags Details | Diff

Description Dhiru Kholia 2013-12-03 03:14:12 UTC
Description of problem

ivtv-utils fails to build if "-Werror=format-security" flag is used.


ivtv-ctl.c:257:2: error: format not a string literal and no format arguments [-Werror=format-security]


We are working on a proposal to enable "-Werror=format-security" for all
packages. Once this flag is enabled, GCC will refuse to compile code that could
be vulnerable to a string format security flaw. For more details, please see
https://fedorahosted.org/fesco/ticket/1185 page.

To understand why it is important to fix this, please see
https://fedoraproject.org/wiki/Format-Security-FAQ page.

How to fix this

The fix for these errors is quite simple. It's a matter of changing a
line like,


to read,

   printf("%s", foo);

That's it.

Please fix this issue in rawhide with a patch (which you should submit
to upstream to merge moving forward). Please do a new build with the
fix in rawhide. Other releases do not need to be directly fixed, but
there should be no harm in pushing out this fix/patch with other needed
changes to those branches.

In the event you don't fix this bug before the next mass rebuild,
provenpackagers may step in and update your package(s) to fix this

How reproducible

Build ivtv-utils-1.4.0-15.fc20.src.rpm with "-Werror=format-security" flag to reproduce the problem.

To make this process easier, you can use a modified "redhat-rpm-config" package
from http://people.fedoraproject.org/~halfie/artifacts/redhat-rpm-config/ URL.

$ sha256sum redhat-rpm-config-9.1.0-56.fc20.*
faad7594b2080fe76497d0ce50808c905a93dd7b41c1defdde5ca57e3833d3d2  redhat-rpm-config-9.1.0-56.fc20.noarch.rpm
5aa9357174305c7285ffdbc92d7ffe1c07a8a95d5459b930461308f5aad75413  redhat-rpm-config-9.1.0-56.fc20.src.rpm

Comment 2 Yaakov Selkowitz 2014-06-12 00:26:17 UTC
Created attachment 907886 [details]
Patch for rawhide

Attaching patch for rawhide.

Comment 3 Yaakov Selkowitz 2014-06-27 00:08:46 UTC
Created attachment 912612 [details]
git format-patch

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