diff options
| author | Jeimon <jjjinmeng.zhou@gmail.com> | 2021-05-08 11:52:30 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-16 11:34:51 +0200 |
| commit | c08e0be44759d0b5affc5888be4aa5e536873335 (patch) | |
| tree | edcd0df48d30215de90823c2f649a055ab7596c1 | |
| parent | bd354c01cb175c50533899743e0e5736e3e36ab0 (diff) | |
net/nfc/rawsock.c: fix a permission check bug
[ Upstream commit 8ab78863e9eff11910e1ac8bcf478060c29b379e ]
The function rawsock_create() calls a privileged function sk_alloc(), which requires a ns-aware check to check net->user_ns, i.e., ns_capable(). However, the original code checks the init_user_ns using capable(). So we replace the capable() with ns_capable().
Signed-off-by: Jeimon <jjjinmeng.zhou@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | net/nfc/rawsock.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c index 92a3cfae4de8..2fba626a0125 100644 --- a/net/nfc/rawsock.c +++ b/net/nfc/rawsock.c @@ -345,7 +345,7 @@ static int rawsock_create(struct net *net, struct socket *sock, return -ESOCKTNOSUPPORT; if (sock->type == SOCK_RAW) { - if (!capable(CAP_NET_RAW)) + if (!ns_capable(net->user_ns, CAP_NET_RAW)) return -EPERM; sock->ops = &rawsock_raw_ops; } else { |