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authorStephen Smalley <sds@tycho.nsa.gov>2008-09-22 15:41:19 -0400
committerJames Morris <jmorris@namei.org>2008-09-30 00:26:53 +1000
commitea6b184f7d521a503ecab71feca6e4057562252b (patch)
tree89724ca76ba9bc8a7029f3fd3edc49557ec6ab40 /security
parentde45e806a84909648623119dfe6fc1d31e71ceba (diff)
downloadlinux-linaro-stable-ea6b184f7d521a503ecab71feca6e4057562252b.tar.gz
selinux: use default proc sid on symlinks
As we are not concerned with fine-grained control over reading of symlinks in proc, always use the default proc SID for all proc symlinks. This should help avoid permission issues upon changes to the proc tree as in the /proc/net -> /proc/self/net example. This does not alter labeling of symlinks within /proc/pid directories. ls -Zd /proc/net output before and after the patch should show the difference. Signed-off-by: Stephen D. Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security')
-rw-r--r--security/selinux/hooks.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 89f446d86054..4a7374c12d9c 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -1291,7 +1291,7 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent
/* Default to the fs superblock SID. */
isec->sid = sbsec->sid;
- if (sbsec->proc) {
+ if (sbsec->proc && !S_ISLNK(inode->i_mode)) {
struct proc_inode *proci = PROC_I(inode);
if (proci->pde) {
isec->sclass = inode_mode_to_security_class(inode->i_mode);