Bug 602518 - Firefox has a segmentation violation when started on Fedora 13 MLS
Summary: Firefox has a segmentation violation when started on Fedora 13 MLS
Alias: None
Product: Fedora
Classification: Fedora
Component: firefox
Version: 13
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Gecko Maintainer
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2010-06-10 03:15 UTC by Joe Nall
Modified: 2018-04-11 14:37 UTC (History)
4 users (show)

Clone Of:
Last Closed: 2011-01-07 14:30:13 UTC

Attachments (Terms of Use)
Screen shot of firefox segmentation violation (55.52 KB, image/png)
2010-06-10 03:15 UTC, Joe Nall
no flags Details

Description Joe Nall 2010-06-10 03:15:49 UTC
Created attachment 422762 [details]
Screen shot of firefox segmentation violation

Description of problem:

Firefox segmentation violation

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:

Configure Fedora as MLS/Enforcing
Start Firefox

Actual results:

Firefox dies

Expected results:

Firefox starts.

Additional info:

I expect this is a bad policy interaction - but firefox should not segfault.

Comment 1 Daniel Walsh 2010-06-10 12:37:33 UTC
Do you have the allow_execmem boolean turned on?

Comment 2 Joe Nall 2010-06-10 14:21:00 UTC
That was it. Thanks Dan.

Comment 3 Matěj Cepl 2010-06-11 12:56:30 UTC
Thanks for the bug report.  We have reviewed the information you have provided above, and there is some additional information we require that will be helpful in our diagnosis of this issue.

First of all, could we get output of the command

	rpm -qa \*xulrun\* \*firefox\* \*mozilla\* \*flash\* \*plugin\*

Please also install firefox-debuginfo (debuginfo-install is from
yum-utils package).

	debuginfo-install firefox

Then run firefox with a parameter -g. That will start firefox running inside of gdb debugger. Then use command run and do whatever you did to make firefox crash. When it happens, you should go back to the gdb and run

	(gdb) thread apply all backtrace

This produces usually many screens of the text. Copy all of them into a text editor and attach the file to the bug as an uncompressed attachment.

Please, install also valgrind (from valgrind package) and run

	valgrind --trace-children=yes --log-file=/tmp/firefox-valgrind-log.txt /usr/bin/firefox

(that's one line command, browser breaking this line into two notwithstanding)

Please, attach the file /tmp/firefox-valgrind-log.txt to this bug as an attachment as well.

We will review this issue again once you've had a chance to attach this information.

Thanks in advance.

Comment 4 Chris Campbell 2011-01-07 13:06:22 UTC
Reporter, I interpret Comment 2 to mean that this is not a bug. If this is true, please set this report closed NOTABUG. If there is still an issue, and this is a reproducible crash, please give us the steps to reproduce it for troubleshooting, thank you.

Fedora Bugzappers volunteer triage team

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