Bug 616992 - CVE-2010-2537 kernel: btrfs: check for append only file in the clone ioctl
Summary: CVE-2010-2537 kernel: btrfs: check for append only file in the clone ioctl
Keywords:
Status: CLOSED DUPLICATE of bug 616998
Alias: None
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 617002
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-07-21 21:20 UTC by Petr Matousek
Modified: 2010-08-02 03:57 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2010-08-02 03:57:52 UTC
Embargoed:

Attachments (Terms of Use)

Description Petr Matousek 2010-07-21 21:20:50 UTC 
Description of problem:
The existing [btrfs] code would have allowed you to overwrite append-only files. Not an expected behaviour.

Upstream commit:
http://git.kernel.org/linus/2ebc3464781ad24474abcbd2274e6254689853b5

Reference:
https://btrfs.wiki.kernel.org/index.php/Main_Page

The kernel in Red Hat Enterprise Linux 6 has support for Btrfs by default.
Comment 1 Petr Matousek 2010-07-21 21:21:37 UTC 
Statement:

Not vulnerable. This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, 5 and Red Hat Enterprise MRG as they did not include support for Btrfs, a new copy on write filesystem.
Comment 3 Eugene Teo (Security Response) 2010-08-02 03:50:07 UTC 
Acknowledgements:

Red Hat would like to thank Dan Rosenberg for responsibly reporting this issue.
Comment 4 Eugene Teo (Security Response) 2010-08-02 03:57:52 UTC 

*** This bug has been marked as a duplicate of bug 616998 ***
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