xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

CRED: Rename cred_exec_mutex to reflect that it's a guard against ptrace

Browse Source 
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>
This commit is contained in:
David Howells
2009-05-08 13:55:22 +01:00
committed by James Morris
parent d254117099
commit 5e751e992f
6 changed files with 20 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
kernel/cred.c
View File

@@ -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