Module: xenomai-forge
Branch: next
Commit: 7e8adbfcd224a038a37f5d89f6bf2b97c7fbea83
URL:
http://git.xenomai.org/?p=xenomai-forge.git;a=commit;h=7e8adbfcd224a038a37f5d89f6bf2b97c7fbea83
Author: Philippe Gerum <r...@xenomai.org>
Date: Fri Jun 14 12:40:55 2013 +0200
kernel/cobalt: fix potential race in pthread_set_name_np()
---
kernel/cobalt/thread.c | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/kernel/cobalt/thread.c b/kernel/cobalt/thread.c
index 6f202e9..840baab 100644
--- a/kernel/cobalt/thread.c
+++ b/kernel/cobalt/thread.c
@@ -965,19 +965,22 @@ int cobalt_thread_set_name_np(unsigned long tid, const
char __user *u_name)
hkey.mm = current->mm;
xnlock_get_irqsave(&nklock, s);
+
pthread = thread_find(&hkey);
if (pthread == NULL) {
xnlock_put_irqrestore(&nklock, s);
return -ESRCH;
}
+ snprintf(xnthread_name(&pthread->threadbase),
+ XNOBJECT_NAME_LEN - 1, "%s", name);
p = xnthread_host_task(&pthread->threadbase);
get_task_struct(p);
+
xnlock_put_irqrestore(&nklock, s);
+
strncpy(p->comm, name, sizeof(p->comm));
p->comm[sizeof(p->comm) - 1] = '\0';
- snprintf(xnthread_name(&pthread->threadbase),
- XNOBJECT_NAME_LEN - 1, "%s", name);
put_task_struct(p);
return 0;
_______________________________________________
Xenomai-git mailing list
Xenomai-git@xenomai.org
http://www.xenomai.org/mailman/listinfo/xenomai-git
