On Thu, May 26, 2016 at 3:46 PM, Hillf Danton <hillf...@alibaba-inc.com> wrote:
>> > See if this fixes your reproducer.
>> >
>> > diff --git a/fs/xattr.c b/fs/xattr.c
>> > index b11945e..49b8eab 100644
>> > --- a/fs/xattr.c
>> > +++ b/fs/xattr.c
>> > @@ -667,6 +667,9 @@ xattr_resolve_name(const struct xattr_handler
>> > **handlers, const char **name)
>> > {
>> > const struct xattr_handler *handler;
>> >
>> > + if (!handlers)
>> > + return NULL;
>> > +
>> > if (!*name)
>> > return NULL;
>> >
>>
>> Tried, but doesn't work.
>>
> See if this fixes your reproducer.
>
> --- linux-4.6/fs/xattr.c Mon May 16 06:43:13 2016
> +++ b/fs/xattr.c Thu May 26 15:36:14 2016
> @@ -667,8 +667,8 @@ xattr_resolve_name(const struct xattr_ha
> {
> const struct xattr_handler *handler;
>
> - if (!*name)
> - return NULL;
> + if (!handlers || !*name)
> + return ERR_PTR(-EINVAL);
>
> for_each_xattr_handler(handlers, handler) {
> const char *n;
> --
Hillf,
That worked and it's already in Linus's latest tree.
Thanks for sharing.
Jeff
