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Diffstat (limited to 'security')
-rw-r--r--security/tomoyo/common.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index 30dd1c68a647..ff51f1026b57 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -1232,11 +1232,13 @@ static bool tomoyo_is_select_one(struct tomoyo_io_buffer *head,
if (sscanf(data, "pid=%u", &pid) == 1) {
struct task_struct *p;
+ rcu_read_lock();
read_lock(&tasklist_lock);
p = find_task_by_vpid(pid);
if (p)
domain = tomoyo_real_domain(p);
read_unlock(&tasklist_lock);
+ rcu_read_unlock();
} else if (!strncmp(data, "domain=", 7)) {
if (tomoyo_is_domain_def(data + 7))
domain = tomoyo_find_domain(data + 7);
@@ -1635,11 +1637,13 @@ static int tomoyo_read_pid(struct tomoyo_io_buffer *head)
const int pid = head->read_step;
struct task_struct *p;
struct tomoyo_domain_info *domain = NULL;
+ rcu_read_lock();
read_lock(&tasklist_lock);
p = find_task_by_vpid(pid);
if (p)
domain = tomoyo_real_domain(p);
read_unlock(&tasklist_lock);
+ rcu_read_unlock();
if (domain)
tomoyo_io_printf(head, "%d %u %s", pid, domain->profile,
domain->domainname->name);