From: Jeimon jjjinmeng.zhou@gmail.com
[ 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 --- net/nfc/rawsock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
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 {