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| author | Ori Nimron <orinimron123@gmail.com> | 2019-09-20 09:35:46 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-05 12:30:15 +0200 |
| commit | 08d2af9358c1937acf97417dba9a03a40149c4d2 (patch) | |
| tree | 56af553bb5036816dfffb47c42ad403cc6496a0c | |
| parent | bb439ee217acbf7835af634f08875540c514632f (diff) | |
| download | linux-stable-08d2af9358c1937acf97417dba9a03a40149c4d2.tar.gz linux-stable-08d2af9358c1937acf97417dba9a03a40149c4d2.tar.bz2 linux-stable-08d2af9358c1937acf97417dba9a03a40149c4d2.zip | |
appletalk: enforce CAP_NET_RAW for raw sockets
[ Upstream commit 6cc03e8aa36c51f3b26a0d21a3c4ce2809c842ac ]
When creating a raw AF_APPLETALK socket, CAP_NET_RAW needs to be checked
first.
Signed-off-by: Ori Nimron <orinimron123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/appletalk/ddp.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c index e206d98b3b82..d74092cc639a 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1029,6 +1029,11 @@ static int atalk_create(struct net *net, struct socket *sock, int protocol, */ if (sock->type != SOCK_RAW && sock->type != SOCK_DGRAM) goto out; + + rc = -EPERM; + if (sock->type == SOCK_RAW && !kern && !capable(CAP_NET_RAW)) + goto out; + rc = -ENOMEM; sk = sk_alloc(net, PF_APPLETALK, GFP_KERNEL, &ddp_proto, kern); if (!sk) |