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authorJeimon <jjjinmeng.zhou@gmail.com>2021-05-08 11:52:30 +0800
committerDavid S. Miller <davem@davemloft.net>2021-05-10 14:21:02 -0700
commit8ab78863e9eff11910e1ac8bcf478060c29b379e (patch)
tree4cd867763afd58d39079a7e862f1813b3dd52b73 /net/nfc
parentb741596468b010af2846b75f5e75a842ce344a6e (diff)
net/nfc/rawsock.c: fix a permission check bug
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>
Diffstat (limited to 'net/nfc')
-rw-r--r--net/nfc/rawsock.c2
1 files changed, 1 insertions, 1 deletions
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;
sock->ops = &rawsock_raw_ops;
} else {