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authorEric W. Biederman <ebiederm@xmission.com>2014-04-24 01:26:25 +0400
committerDavid S. Miller <davem@davemloft.net>2014-04-24 21:44:53 +0400
commita53b72c83a4216f2eb883ed45a0cbce014b8e62d (patch)
treee5a7f73a70a53c3485f3147de60f7c77b1ab7f4f /net/core/sock_diag.c
parent5187cd055b6e81fc6526109456f8b20623148d5f (diff)
downloadlinux-a53b72c83a4216f2eb883ed45a0cbce014b8e62d.tar.xz
net: Move the permission check in sock_diag_put_filterinfo to packet_diag_dump
The permission check in sock_diag_put_filterinfo is wrong, and it is so removed from it's sources it is not clear why it is wrong. Move the computation into packet_diag_dump and pass a bool of the result into sock_diag_filterinfo. This does not yet correct the capability check but instead simply moves it to make it clear what is going on. Reported-by: Andy Lutomirski <luto@amacapital.net> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/sock_diag.c')
-rw-r--r--net/core/sock_diag.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
index 9deb6abd6cf6..a4216a4c9572 100644
--- a/net/core/sock_diag.c
+++ b/net/core/sock_diag.c
@@ -49,7 +49,7 @@ int sock_diag_put_meminfo(struct sock *sk, struct sk_buff *skb, int attrtype)
}
EXPORT_SYMBOL_GPL(sock_diag_put_meminfo);
-int sock_diag_put_filterinfo(struct sock *sk,
+int sock_diag_put_filterinfo(bool may_report_filterinfo, struct sock *sk,
struct sk_buff *skb, int attrtype)
{
struct sock_fprog_kern *fprog;
@@ -58,7 +58,7 @@ int sock_diag_put_filterinfo(struct sock *sk,
unsigned int flen;
int err = 0;
- if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) {
+ if (!may_report_filterinfo) {
nla_reserve(skb, attrtype, 0);
return 0;
}