diff options
Diffstat (limited to 'kernel/trace/bpf_trace.c')
| -rw-r--r-- | kernel/trace/bpf_trace.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c index 289ff0caa83e..132c8be6f635 100644 --- a/kernel/trace/bpf_trace.c +++ b/kernel/trace/bpf_trace.c @@ -3555,8 +3555,12 @@ static __always_inline int copy_user_data_sleepable(void *dst, const void *unsaf { int ret; - if (!tsk) /* Read from the current task */ - return copy_from_user(dst, (const void __user *)unsafe_src, size); + if (!tsk) { /* Read from the current task */ + ret = copy_from_user(dst, (const void __user *)unsafe_src, size); + if (ret) + return -EFAULT; + return 0; + } ret = access_process_vm(tsk, (unsigned long)unsafe_src, dst, size, 0); if (ret != size) |