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authorDavid Howells <dhowells@redhat.com>2009-05-08 13:55:22 +0100
committerJames Morris <jmorris@namei.org>2009-05-11 08:15:36 +1000
commit5e751e992f3fb08ba35e1ca8095ec8fbf9eda523 (patch)
tree711b1b47622dc9661f1d3d9c67d55c0b21456e8c /kernel/cred.c
parentd254117099d711f215e62427f55dfb8ebd5ad011 (diff)
downloadlinux-5e751e992f3fb08ba35e1ca8095ec8fbf9eda523.tar.gz
CRED: Rename cred_exec_mutex to reflect that it's a guard against ptrace
Rename cred_exec_mutex to reflect that it's a guard against foreign intervention on a process's credential state, such as is made by ptrace(). The attachment of a debugger to a process affects execve()'s calculation of the new credential state - _and_ also setprocattr()'s calculation of that state. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'kernel/cred.c')
-rw-r--r--kernel/cred.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/cred.c b/kernel/cred.c
index 3a039189d70..1bb4d7e5d61 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -167,7 +167,7 @@ EXPORT_SYMBOL(prepare_creds);
/*
* Prepare credentials for current to perform an execve()
- * - The caller must hold current->cred_exec_mutex
+ * - The caller must hold current->cred_guard_mutex
*/
struct cred *prepare_exec_creds(void)
{
@@ -276,7 +276,7 @@ int copy_creds(struct task_struct *p, unsigned long clone_flags)
struct cred *new;
int ret;
- mutex_init(&p->cred_exec_mutex);
+ mutex_init(&p->cred_guard_mutex);
if (
#ifdef CONFIG_KEYS