Reviewed-by: Cheng Jian cj.chengjian@huawei.com
在 2021/10/23 21:10, lf 写道:
From: Jeimon jjjinmeng.zhou@gmail.com
stable inclusion from stable-v5.10.44 commit 1e5cab50208c8fb7351b798cb1d569debfeb994a bugzilla:https://bugzilla.openeuler.org/show_bug.cgi?id=371 CVE: NA
[ 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 Signed-off-by: lf 15042944259@163.com
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 9c7eb8455ba8..5f1d438a0a23 100644 --- a/net/nfc/rawsock.c +++ b/net/nfc/rawsock.c @@ -329,7 +329,7 @@ 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;