On Tue, 2 Oct 2012 11:53:38 -0400
Christoph Hellwig <hch(a)infradead.org> wrote:
On Mon, Oct 01, 2012 at 08:16:11PM -0400, Jeff Layton wrote:
> In some cases, we were passing in NULL even when we have a dentry.
>
> Reported-by: Eric Paris <eparis(a)redhat.com>
> Signed-off-by: Jeff Layton <jlayton(a)redhat.com>
> ---
> kernel/auditsc.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/kernel/auditsc.c b/kernel/auditsc.c
> index 4b96415..5c45b9b 100644
> --- a/kernel/auditsc.c
> +++ b/kernel/auditsc.c
> @@ -2226,7 +2226,7 @@ void __audit_inode_child(const struct dentry *dentry,
> if (!strcmp(dname, n->name) ||
> !audit_compare_dname_path(dname, n->name, &dirlen)) {
> if (inode)
> - audit_copy_inode(n, NULL, inode);
> + audit_copy_inode(n, dentry, inode);
Btw, the calling conventions here also seems fairly ugly.
Instead of the optional dentry parameter I'd have a audit_copy_inode
that takes just the name and the inode, and an optional direct call
to audit_copy_fcaps for those callers that have a dentry. That would
also allow removing the branch for the dentry == NULL case in
audit_copy_fcaps.
[...]
On Mon, Oct 01, 2012 at 08:16:12PM -0400, Jeff Layton wrote:
> If name is NULL then the condition in the loop will never be true. Also,
> with this change, we can eliminate the check for n->name == NULL since
> the equivalence check will never be true if it is.
Given that name == NULL is a static condition it seems like these
should be two different calls, E.g. audit_dentry and audit_path.
Thanks Christoph,
Both of the above are good suggestions, but I'd prefer not to have to
respin this whole set to implement them. I believe what I have here is
an improvement on what's there now. Do you have any objection to doing
the above in a separate set on top of this series?
--
Jeff Layton <jlayton(a)redhat.com>