[PATCH 0/2] [CVE-2012-2375] [PRECISE] More NFS ACL boundry checking

Tim Gardner tim.gardner at canonical.com
Thu May 31 16:48:47 UTC 2012


On 05/31/2012 10:25 AM, Brad Figg wrote:
> The fix for CVE-2011-4131 was not complete. Malicious NFS server could still
> crash the clients when more than 2 GETATTR bitmap words are returned in
> response to the FATTR4_ACL attribute request.
> 
> Sachin Prabhu (2):
>   Avoid reading past buffer when calling GETACL
>   Avoid beyond bounds copy while caching ACL
> 
>  fs/nfs/nfs4proc.c |   28 +++++++++++++++-------------
>  fs/nfs/nfs4xdr.c  |   18 +++++++++++-------
>  2 files changed, 26 insertions(+), 20 deletions(-)
> 

Did you somehow get the patch logs reversed ? The commit log for '[PATCH
1/2] [CVE-2012-2375] [PRECISE] Avoid reading past buffer when calling
GETACL' does not appear to be correct. Its certainly not the commit
referenced below your s-o-b, e.g.,
5794d21ef4639f0e33440927bb903f9598c21e92 is for 'Avoid beyond bounds
copy while caching ACL'.

rtg
-- 
Tim Gardner tim.gardner at canonical.com




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