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Old 07-08-2011, 04:44 PM
Tim Gardner
Default APPLIED: nfs4: Ensure that ACL pages sent over NFS were not allocated from the slab (v3)

On 07/08/2011 10:00 AM, Andy Whitcroft wrote:

The __nfs4_proc_set_acl function in fs/nfs/nfs4proc.c in the
Linux kernel before 2.6.38 stores NFSv4 ACL data in memory that is
allocated by kmalloc but not properly freed, which allows local
users to cause a denial of service (panic) via a crafted attempt
to set an ACL.

This has already been fixed for all releases after hardy. Following
this email is a backport of this fix for hardy. This is a relaivly
simple re-application of the original.

Proposing for hardy.


Tim Gardner tim.gardner@canonical.com

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