diff options
Diffstat (limited to 'net/xfrm/xfrm_user.c')
-rw-r--r-- | net/xfrm/xfrm_user.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 4dbe6ebeabf8..dd0509ee14da 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -109,7 +109,8 @@ static inline int verify_sec_ctx_len(struct nlattr **attrs) return 0; uctx = nla_data(rt); - if (uctx->len != (sizeof(struct xfrm_user_sec_ctx) + uctx->ctx_len)) + if (uctx->len > nla_len(rt) || + uctx->len != (sizeof(struct xfrm_user_sec_ctx) + uctx->ctx_len)) return -EINVAL; return 0; @@ -2174,6 +2175,9 @@ static int xfrm_add_acquire(struct sk_buff *skb, struct nlmsghdr *nlh, err = verify_newpolicy_info(&ua->policy); if (err) + goto free_state; + err = verify_sec_ctx_len(attrs); + if (err) goto bad_policy; /* build an XP */ |