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authorAl Viro <viro@zeniv.linux.org.uk>2016-06-30 23:34:49 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2016-06-30 23:34:49 -0400
commitb223f4e215b32849b841e750e83a915b670070f5 (patch)
tree75340f6305028de331a17255018869822b3886d2 /security/keys/dh.c
parentf4e6d844bdc142322905d137a9e44e07eee43c5c (diff)
parent0cac643c102c0632dc2cc81e2490b0fec1cac0af (diff)
downloadblackbird-op-linux-b223f4e215b32849b841e750e83a915b670070f5.tar.gz
blackbird-op-linux-b223f4e215b32849b841e750e83a915b670070f5.zip
Merge branch 'd_real' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs into work.misc
Diffstat (limited to 'security/keys/dh.c')
-rw-r--r--security/keys/dh.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/security/keys/dh.c b/security/keys/dh.c
index 880505a4b9f1..531ed2ec132f 100644
--- a/security/keys/dh.c
+++ b/security/keys/dh.c
@@ -78,7 +78,8 @@ error:
}
long keyctl_dh_compute(struct keyctl_dh_params __user *params,
- char __user *buffer, size_t buflen)
+ char __user *buffer, size_t buflen,
+ void __user *reserved)
{
long ret;
MPI base, private, prime, result;
@@ -97,6 +98,11 @@ long keyctl_dh_compute(struct keyctl_dh_params __user *params,
goto out;
}
+ if (reserved) {
+ ret = -EINVAL;
+ goto out;
+ }
+
keylen = mpi_from_key(pcopy.prime, buflen, &prime);
if (keylen < 0 || !prime) {
/* buflen == 0 may be used to query the required buffer size,
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