Bug 863054 - exportfs crash with long path
exportfs crash with long path
Product: Fedora
Classification: Fedora
Component: nfs-utils (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
: ---
: ---
Assigned To: Steve Dickson
Fedora Extras Quality Assurance
Depends On:
  Show dependency treegraph
Reported: 2012-10-04 06:39 EDT by Ivan Romanov
Modified: 2012-11-29 01:10 EST (History)
3 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2012-11-29 01:10:28 EST
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
patch (333 bytes, patch)
2012-10-04 06:39 EDT, Ivan Romanov
no flags Details | Diff

  None (edit)
Description Ivan Romanov 2012-10-04 06:39:04 EDT
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 10:32:28 EDT
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 10:58:36 EDT
Sure. I will do it.
Comment 3 Ivan Romanov 2012-10-10 05:40:31 EDT
no answer
Comment 4 Steve Dickson 2012-10-11 11:13:56 EDT
(In reply to comment #3)
> no answer
Its on my todo list... thanks for patch...
Comment 5 Fedora Update System 2012-11-08 13:03:12 EST
nfs-utils-1.2.6-6.fc17 has been submitted as an update for Fedora 17.
Comment 6 Fedora Update System 2012-11-09 12:59:41 EST
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 01:10:30 EST
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.

Note You need to log in before you can comment on or make changes to this bug.