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SubjectRe: [PATCH] nfsd/nfs4acl: Number of used used array elements needs to be zeroed.
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On Thu, Sep 04, 2008 at 04:55:18PM +0200, Jiri Pirko wrote:
> Number of used used array elements needs to be zeroed. It may cause
> problems otherwise, because it's used uninitialized in find_uid().
>
> Signed-off-by: Jiri Pirko <jpirko@redhat.com>
> ---
> fs/nfsd/nfs4acl.c | 2 ++
> 1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c
> index 54b8b41..7dcd90f 100644
> --- a/fs/nfsd/nfs4acl.c
> +++ b/fs/nfsd/nfs4acl.c
> @@ -447,11 +447,13 @@ init_state(struct posix_acl_state *state, int cnt)
> state->users = kzalloc(alloc, GFP_KERNEL);
> if (!state->users)
> return -ENOMEM;
> + state->users->n = 0;
> state->groups = kzalloc(alloc, GFP_KERNEL);
> if (!state->groups) {
> kfree(state->users);
> return -ENOMEM;
> }
> + state->groups->n = 0;
> return 0;
> }

Thanks for the extra eyes on this code, but: surely the kzalloc()'s are
all that's necessary? Am I missing something?

--b.


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