Bug 616992 - CVE-2010-2537 kernel: btrfs: check for append only file in the clone ioctl
CVE-2010-2537 kernel: btrfs: check for append only file in the clone ioctl
Status: CLOSED DUPLICATE of bug 616998
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
: Security
Depends On: 617002
Blocks:
  Show dependency treegraph
 
Reported: 2010-07-21 17:20 EDT by Petr Matousek
Modified: 2010-08-01 23:57 EDT (History)
7 users (show)

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Doc Type: Bug Fix
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Last Closed: 2010-08-01 23:57:52 EDT
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Description Petr Matousek 2010-07-21 17:20:50 EDT
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 17:21:37 EDT
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) 2010-08-01 23:50:07 EDT
Acknowledgements:

Red Hat would like to thank Dan Rosenberg for responsibly reporting this issue.
Comment 4 Eugene Teo (Security Response) 2010-08-01 23:57:52 EDT

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

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