Commit 25a74f3b authored Nov 08, 2005 by Stephen Smalley Committed by Linus Torvalds Nov 09, 2005

[PATCH] selinux: disable setxattr on mountpoint labeled filesystems



This patch disables the setting of SELinux xattrs on files created in
filesystems labeled via mountpoint labeling (mounted with the context=
option).  selinux_inode_setxattr already prevents explicit setxattr from
userspace on such filesystems, so this provides consistent behavior for
file creation.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent e517a0cd

security/selinux/hooks.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1986,6 +1986,9 @@ static int selinux_inode_init_security(struct inode inode, struct inode dir,

		inode_security_set_sid(inode, newsid);

		if (sbsec->behavior == SECURITY_FS_USE_MNTPOINT)
		return -EOPNOTSUPP;

		if (name) {
		namep = kstrdup(XATTR_SELINUX_SUFFIX, GFP_KERNEL);
		if (!namep)