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-rw-r--r--security/lsm_audit.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/security/lsm_audit.c b/security/lsm_audit.c
index 69fdf3bc765b..b526ddc3add5 100644
--- a/security/lsm_audit.c
+++ b/security/lsm_audit.c
@@ -211,7 +211,7 @@ static inline void print_ipv4_addr(struct audit_buffer *ab, __be32 addr,
static void dump_common_audit_data(struct audit_buffer *ab,
struct common_audit_data *a)
{
- struct task_struct *tsk = current;
+ char comm[sizeof(current->comm)];
/*
* To keep stack sizes in check force programers to notice if they
@@ -220,8 +220,8 @@ static void dump_common_audit_data(struct audit_buffer *ab,
*/
BUILD_BUG_ON(sizeof(a->u) > sizeof(void *)*2);
- audit_log_format(ab, " pid=%d comm=", task_pid_nr(tsk));
- audit_log_untrustedstring(ab, tsk->comm);
+ audit_log_format(ab, " pid=%d comm=", task_pid_nr(current));
+ audit_log_untrustedstring(ab, memcpy(comm, current->comm, sizeof(comm)));
switch (a->type) {
case LSM_AUDIT_DATA_NONE:
@@ -276,16 +276,19 @@ static void dump_common_audit_data(struct audit_buffer *ab,
audit_log_format(ab, " ino=%lu", inode->i_ino);
break;
}
- case LSM_AUDIT_DATA_TASK:
- tsk = a->u.tsk;
+ case LSM_AUDIT_DATA_TASK: {
+ struct task_struct *tsk = a->u.tsk;
if (tsk) {
pid_t pid = task_pid_nr(tsk);
if (pid) {
+ char comm[sizeof(tsk->comm)];
audit_log_format(ab, " pid=%d comm=", pid);
- audit_log_untrustedstring(ab, tsk->comm);
+ audit_log_untrustedstring(ab,
+ memcpy(comm, tsk->comm, sizeof(comm)));
}
}
break;
+ }
case LSM_AUDIT_DATA_NET:
if (a->u.net->sk) {
struct sock *sk = a->u.net->sk;