diff options
| author | Dmitry Safonov <dima@arista.com> | 2020-09-21 15:36:56 +0100 |
|---|---|---|
| committer | Alistair Delva <adelva@google.com> | 2020-11-02 16:37:31 +0000 |
| commit | 05de67ed2af314b5d1c5083b66c8b077628aaf52 (patch) | |
| tree | f9b16f770aa63efad5bf02bbfd7bb85d3a1076b2 /net/xfrm/xfrm_state.c | |
| parent | f0fee529f3b89d49e01e883c7c78e112ac8943b1 (diff) | |
BACKPORT: xfrm/compat: Translate 32-bit user_policy from sockptr
Provide compat_xfrm_userpolicy_info translation for xfrm setsocketopt().
Reallocate buffer and put the missing padding for 64-bit message.
Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
(cherry picked from commit 96392ee5a13b992563cfe07d23ee30d333b89126)
[adelva: Edited around removed compat check in Android kernels]
Bug: 163141236
Signed-off-by: Alistair Delva <adelva@google.com>
Change-Id: I32a6495cd92fa13c956fca88aa5d80716155b8ae
Diffstat (limited to 'net/xfrm/xfrm_state.c')
| -rw-r--r-- | net/xfrm/xfrm_state.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 7558ed17dc65..4cbeee279840 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -1939,6 +1939,20 @@ int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen if (copy_from_user(data, optval, optlen)) goto out; + if (is_compat_task()) { + struct xfrm_translator *xtr = xfrm_get_translator(); + + if (!xtr) + return -EOPNOTSUPP; + + err = xtr->xlate_user_policy_sockptr(&data, optlen); + xfrm_put_translator(xtr); + if (err) { + kfree(data); + return err; + } + } + err = -EINVAL; rcu_read_lock(); list_for_each_entry_rcu(km, &xfrm_km_list, list) { |