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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel GFS2 Allocation Error Lets Local Users Deny Service
SecurityTracker Alert ID:  1025776
SecurityTracker URL:  http://securitytracker.com/id/1025776
CVE Reference:   CVE-2011-2689   (Links to External Site)
Date:  Jul 15 2011
Impact:   Denial of service via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.6.39 and prior versions
Description:   A vulnerability was reported in the Linux Kernel. A local user can cause denial of service conditions.

A local user can invoke the gfs2_fallocate() function in 'fs/gfs2/file.c' in certain cases to allocate a non-blksize aligned amount, resulting in an error in subsequent code that requires blksize aligned offsets.

Impact:   A local user can cause denial of service conditions on the target system.
Solution:   The vendor has issued a source code fix, available at:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=6905d9e4dda6112f007e9090bca80507da158e63

Vendor URL:  www.kernel.org/ (Links to External Site)
Cause:   State error

Message History:   None.


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