linux-kernel - Re: [PATCH] xattr: Fix setting security xattrs on sockfs

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Date:   Thu,  3 Nov 2016 17:00:59 +0100
From:   Andreas Gruenbacher <agruenba@...hat.com>
To:     Casey Schaufler <casey@...aufler-ca.com>,
        Al Viro <viro@...iv.linux.org.uk>
Cc:     Andreas Gruenbacher <agruenba@...hat.com>,
        linux-kernel@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        Stephen Smalley <sds@...ho.nsa.gov>
Subject: Re: [PATCH] xattr: Fix setting security xattrs on sockfs

On Thu, Nov 3, 2016 at 4:51 PM, Casey Schaufler <casey@...aufler-ca.com> wrote:
> On 11/3/2016 6:45 AM, Andreas Gruenbacher wrote:
>> Casey, the first patch broke filesystems that support setxattr for some xattrs
>> but not security xattrs.  Here's an updated patch; could you please test?
>
> This patch does not fix the problem. I am back to EOPTNOTSUP.

Ah, I forgot to register the new sockfs xattr handler.  Does this help?

Thanks,
Andreas

---
 net/socket.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/socket.c b/net/socket.c
index 816392a..9820725 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -357,6 +357,7 @@ static const struct xattr_handler sockfs_security_xattr_handler = {
 
 static const struct xattr_handler *sockfs_xattr_handlers[] = {
 	&sockfs_xattr_handler,
+	&sockfs_security_xattr_handler,
 	NULL
 };
 
-- 
2.7.4