diff options
Diffstat (limited to 'net/xfrm/xfrm_user.c')
| -rw-r--r-- | net/xfrm/xfrm_user.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 671a1d0333f0..40a8aa39220d 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -27,7 +27,7 @@ #include <net/xfrm.h> #include <net/netlink.h> #include <net/ah.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #if IS_ENABLED(CONFIG_IPV6) #include <linux/in6.h> #endif @@ -412,7 +412,14 @@ static inline int xfrm_replay_verify_len(struct xfrm_replay_state_esn *replay_es up = nla_data(rp); ulen = xfrm_replay_state_esn_len(up); - if (nla_len(rp) < ulen || xfrm_replay_state_esn_len(replay_esn) != ulen) + /* Check the overall length and the internal bitmap length to avoid + * potential overflow. */ + if (nla_len(rp) < ulen || + xfrm_replay_state_esn_len(replay_esn) != ulen || + replay_esn->bmp_len != up->bmp_len) + return -EINVAL; + + if (up->replay_window > up->bmp_len * sizeof(__u32) * 8) return -EINVAL; return 0; |