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Diffstat (limited to 'security')
-rw-r--r--security/selinux/hooks.c19
-rw-r--r--security/selinux/include/security.h3
-rw-r--r--security/selinux/ss/services.c12
3 files changed, 19 insertions, 15 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index c2fef7b12dc..d39b59cf8a0 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -180,7 +180,7 @@ static int inode_alloc_security(struct inode *inode)
struct task_security_struct *tsec = current->security;
struct inode_security_struct *isec;
- isec = kmem_cache_zalloc(sel_inode_cache, GFP_KERNEL);
+ isec = kmem_cache_zalloc(sel_inode_cache, GFP_NOFS);
if (!isec)
return -ENOMEM;
@@ -760,13 +760,13 @@ static void selinux_sb_clone_mnt_opts(const struct super_block *oldsb,
* this early in the boot process. */
BUG_ON(!ss_initialized);
- /* this might go away sometime down the line if there is a new user
- * of clone, but for now, nfs better not get here... */
- BUG_ON(newsbsec->initialized);
-
/* how can we clone if the old one wasn't set up?? */
BUG_ON(!oldsbsec->initialized);
+ /* if fs is reusing a sb, just let its options stand... */
+ if (newsbsec->initialized)
+ return;
+
mutex_lock(&newsbsec->lock);
newsbsec->flags = oldsbsec->flags;
@@ -1143,7 +1143,7 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent
}
len = INITCONTEXTLEN;
- context = kmalloc(len, GFP_KERNEL);
+ context = kmalloc(len, GFP_NOFS);
if (!context) {
rc = -ENOMEM;
dput(dentry);
@@ -1161,7 +1161,7 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent
}
kfree(context);
len = rc;
- context = kmalloc(len, GFP_KERNEL);
+ context = kmalloc(len, GFP_NOFS);
if (!context) {
rc = -ENOMEM;
dput(dentry);
@@ -1185,7 +1185,8 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent
rc = 0;
} else {
rc = security_context_to_sid_default(context, rc, &sid,
- sbsec->def_sid);
+ sbsec->def_sid,
+ GFP_NOFS);
if (rc) {
printk(KERN_WARNING "%s: context_to_sid(%s) "
"returned %d for dev=%s ino=%ld\n",
@@ -2429,7 +2430,7 @@ static int selinux_inode_init_security(struct inode *inode, struct inode *dir,
return -EOPNOTSUPP;
if (name) {
- namep = kstrdup(XATTR_SELINUX_SUFFIX, GFP_KERNEL);
+ namep = kstrdup(XATTR_SELINUX_SUFFIX, GFP_NOFS);
if (!namep)
return -ENOMEM;
*name = namep;
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index f7d2f03781f..44e12ec8809 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -86,7 +86,8 @@ int security_sid_to_context(u32 sid, char **scontext,
int security_context_to_sid(char *scontext, u32 scontext_len,
u32 *out_sid);
-int security_context_to_sid_default(char *scontext, u32 scontext_len, u32 *out_sid, u32 def_sid);
+int security_context_to_sid_default(char *scontext, u32 scontext_len,
+ u32 *out_sid, u32 def_sid, gfp_t gfp_flags);
int security_get_user_sids(u32 callsid, char *username,
u32 **sids, u32 *nel);
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 47295acd09c..5fd54f2bbaa 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -680,7 +680,8 @@ out:
}
-static int security_context_to_sid_core(char *scontext, u32 scontext_len, u32 *sid, u32 def_sid)
+static int security_context_to_sid_core(char *scontext, u32 scontext_len,
+ u32 *sid, u32 def_sid, gfp_t gfp_flags)
{
char *scontext2;
struct context context;
@@ -709,7 +710,7 @@ static int security_context_to_sid_core(char *scontext, u32 scontext_len, u32 *s
null suffix to the copy to avoid problems with the existing
attr package, which doesn't view the null terminator as part
of the attribute value. */
- scontext2 = kmalloc(scontext_len+1,GFP_KERNEL);
+ scontext2 = kmalloc(scontext_len+1, gfp_flags);
if (!scontext2) {
rc = -ENOMEM;
goto out;
@@ -809,7 +810,7 @@ out:
int security_context_to_sid(char *scontext, u32 scontext_len, u32 *sid)
{
return security_context_to_sid_core(scontext, scontext_len,
- sid, SECSID_NULL);
+ sid, SECSID_NULL, GFP_KERNEL);
}
/**
@@ -829,10 +830,11 @@ int security_context_to_sid(char *scontext, u32 scontext_len, u32 *sid)
* Returns -%EINVAL if the context is invalid, -%ENOMEM if insufficient
* memory is available, or 0 on success.
*/
-int security_context_to_sid_default(char *scontext, u32 scontext_len, u32 *sid, u32 def_sid)
+int security_context_to_sid_default(char *scontext, u32 scontext_len, u32 *sid,
+ u32 def_sid, gfp_t gfp_flags)
{
return security_context_to_sid_core(scontext, scontext_len,
- sid, def_sid);
+ sid, def_sid, gfp_flags);
}
static int compute_sid_handle_invalid_context(