Bug 863054 - exportfs crash with long path
Summary: exportfs crash with long path
Alias: None
Product: Fedora
Classification: Fedora
Component: nfs-utils
Version: rawhide
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Steve Dickson
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2012-10-04 10:39 UTC by Ivan Romanov
Modified: 2012-11-29 06:10 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2012-11-29 06:10:28 UTC

Attachments (Terms of Use)
patch (333 bytes, patch)
2012-10-04 10:39 UTC, Ivan Romanov
no flags Details | Diff

Description Ivan Romanov 2012-10-04 10:39:04 UTC
Created attachment 621559 [details]

How reproducible:

Steps to Reproduce:
# mkdir -p /home/kudinae/Общедоступные
# echo '/home/kudinae/Общедоступные oek-1(rw,sync,no_wdelay,no_root_squash,no_subtree_check)' > /etc/exports
# exportfs -a
Segmentation fault

I've obtained the sources. So a crush happens on export.c:293. variable pos has negative value. I think problem into strtoint and export_hash functions. strtoint has unsigned type and always returns positive value but export_hash impicity cast it to signed int. So it is possible to get negative value. 
I wrote patch to fix this.

Comment 1 J. Bruce Fields 2012-10-08 14:32:28 UTC
Good catch--would it be possible for you to send this patch upstream?  That would just mean emailing it (together with your explanation) to steved@redhat.com, cc'd to linux-nfs@vger.kernel.org.

Comment 2 Ivan Romanov 2012-10-08 14:58:36 UTC
Sure. I will do it.

Comment 3 Ivan Romanov 2012-10-10 09:40:31 UTC
no answer

Comment 4 Steve Dickson 2012-10-11 15:13:56 UTC
(In reply to comment #3)
> no answer
Its on my todo list... thanks for patch...

Comment 5 Fedora Update System 2012-11-08 18:03:12 UTC
nfs-utils-1.2.6-6.fc17 has been submitted as an update for Fedora 17.

Comment 6 Fedora Update System 2012-11-09 17:59:41 UTC
Package nfs-utils-1.2.6-6.fc17:
* should fix your issue,
* was pushed to the Fedora 17 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing nfs-utils-1.2.6-6.fc17'
as soon as you are able to.
Please go to the following url:
then log in and leave karma (feedback).

Comment 7 Fedora Update System 2012-11-29 06:10:30 UTC
nfs-utils-1.2.6-6.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

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