diff options
| -rw-r--r-- | net/core/filter.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/core/filter.c b/net/core/filter.c index 05a04ea87172..87b78ef0c3d4 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -1854,9 +1854,13 @@ int sk_get_filter(struct sock *sk, struct sock_filter __user *ubuf, goto out; /* We're copying the filter that has been originally attached, - * so no conversion/decode needed anymore. + * so no conversion/decode needed anymore. eBPF programs that + * have no original program cannot be dumped through this. */ + ret = -EACCES; fprog = filter->prog->orig_prog; + if (!fprog) + goto out; ret = fprog->len; if (!len) |