APPLIED: [CVE-2011-2689] GFS2: make sure fallocate bytes is a multiple of blksize

[Tim Gardner]

On 08/02/2011 03:31 AM, Andy Whitcroft wrote:
> CVE-2011-2689
> 	The gfs2_fallocate function in fs/gfs2/file.c in the Linux kernel
> 	before 3.0-rc1 does not ensure that the size of a chunk allocation
> 	is a multiple of the block size, which allows local users to
> 	cause a denial of service (BUG and system crash) by arranging
> 	for all resource groups to have too little free space.
>
> This bug was introduced in v2.6.37-rc1 and therefore maverick and
> earlier are unaffected.  Following this email is a patch for natty and
> natty/ti-omap4.  This patch is a clean charry-pick of the upstream fix.
>
> Proposing for natty and natty/ti-omap4.
>
> -apw
>


-- 
Tim Gardner tim.gardner at canonical.com