[PATCH 1/2] audit: fix info leak in AUDIT_GET requests

[Richard Guy Briggs]

On Mon, Sep 30, 2013 at 10:04:24PM +0200, Mathias Krause wrote:
> We leak 4 bytes of kernel stack in response to an AUDIT_GET request as
> we miss to initialize the mask member of status_set. Fix that.

Thank you.

> Cc: Al Viro <viro at zeniv.linux.org.uk>
> Cc: Eric Paris <eparis at redhat.com>
> Cc: stable at vger.kernel.org  # v2.6.6+
> Signed-off-by: Mathias Krause <minipli at googlemail.com>
> ---
>  kernel/audit.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/kernel/audit.c b/kernel/audit.c
> index 7b0e23a..e237712 100644
> --- a/kernel/audit.c
> +++ b/kernel/audit.c
> @@ -659,6 +659,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
>  
>  	switch (msg_type) {
>  	case AUDIT_GET:
> +		status_set.mask		 = 0;
>  		status_set.enabled	 = audit_enabled;
>  		status_set.failure	 = audit_failure;
>  		status_set.pid		 = audit_pid;
> -- 
> 1.7.10.4
> 
> --
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> Linux-audit at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-audit

- RGB

--
Richard Guy Briggs <rbriggs at redhat.com>
Senior Software Engineer
Kernel Security
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