diff options
Diffstat (limited to 'kernel/bpf/helpers.c')
| -rw-r--r-- | kernel/bpf/helpers.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c index 8ba2b8965caf..8e196c9b7c50 100644 --- a/kernel/bpf/helpers.c +++ b/kernel/bpf/helpers.c @@ -3009,11 +3009,13 @@ __bpf_kfunc struct task_struct *bpf_task_from_vpid(s32 vpid) { struct task_struct *p; - rcu_read_lock(); + guard(rcu)(); + if (!task_active_pid_ns(current)) + return NULL; + p = find_task_by_vpid(vpid); if (p) p = bpf_task_acquire(p); - rcu_read_unlock(); return p; } |