linux-kernel - [PATCH v2 09/25] commoncap: use is_fscaps

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Date: Wed, 21 Feb 2024 15:24:40 -0600
From: "Seth Forshee (DigitalOcean)" <sforshee@...nel.org>
To: Christian Brauner <brauner@...nel.org>, 
 Seth Forshee <sforshee@...nel.org>, Serge Hallyn <serge@...lyn.com>, 
 Paul Moore <paul@...l-moore.com>, Eric Paris <eparis@...hat.com>, 
 James Morris <jmorris@...ei.org>, Alexander Viro <viro@...iv.linux.org.uk>, 
 Jan Kara <jack@...e.cz>, Stephen Smalley <stephen.smalley.work@...il.com>, 
 Ondrej Mosnacek <omosnace@...hat.com>, 
 Casey Schaufler <casey@...aufler-ca.com>, Mimi Zohar <zohar@...ux.ibm.com>, 
 Roberto Sassu <roberto.sassu@...wei.com>, 
 Dmitry Kasatkin <dmitry.kasatkin@...il.com>, 
 Eric Snowberg <eric.snowberg@...cle.com>, 
 "Matthew Wilcox (Oracle)" <willy@...radead.org>, 
 Jonathan Corbet <corbet@....net>, Miklos Szeredi <miklos@...redi.hu>, 
 Amir Goldstein <amir73il@...il.com>
Cc: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org, 
 linux-security-module@...r.kernel.org, audit@...r.kernel.org, 
 selinux@...r.kernel.org, linux-integrity@...r.kernel.org, 
 linux-doc@...r.kernel.org, linux-unionfs@...r.kernel.org
Subject: [PATCH v2 09/25] commoncap: use is_fscaps_xattr()

Signed-off-by: Seth Forshee (DigitalOcean) <sforshee@...nel.org>
---
 security/commoncap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/commoncap.c b/security/commoncap.c
index 289530e58c37..19affcfa3126 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -1205,7 +1205,7 @@ int cap_inode_setxattr(struct dentry *dentry, const char *name,
 	 * For XATTR_NAME_CAPS the check will be done in
 	 * cap_convert_nscap(), called by setxattr()
 	 */
-	if (strcmp(name, XATTR_NAME_CAPS) == 0)
+	if (is_fscaps_xattr(name))
 		return 0;
 
 	if (!ns_capable(user_ns, CAP_SYS_ADMIN))
@@ -1242,7 +1242,7 @@ int cap_inode_removexattr(struct mnt_idmap *idmap,
 			XATTR_SECURITY_PREFIX_LEN) != 0)
 		return 0;
 
-	if (strcmp(name, XATTR_NAME_CAPS) == 0) {
+	if (is_fscaps_xattr(name)) {
 		/* security.capability gets namespaced */
 		struct inode *inode = d_backing_inode(dentry);
 		if (!inode)

-- 
2.43.0