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author | Qingyu Li <ieatmuttonchuan@gmail.com> | 2020-08-10 04:51:00 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-21 10:48:13 +0300 |
commit | 980415fffec6952602edac586eb8c3a7d3f50b43 (patch) | |
tree | 106aaf19ffb4e28872bb215883395fbc373e2e2a /net/nfc | |
parent | beafe1d05798982ae21db383884611bb389a1639 (diff) | |
download | linux-980415fffec6952602edac586eb8c3a7d3f50b43.tar.xz |
net/nfc/rawsock.c: add CAP_NET_RAW check.
[ Upstream commit 26896f01467a28651f7a536143fe5ac8449d4041 ]
When creating a raw AF_NFC socket, CAP_NET_RAW needs to be checked first.
Signed-off-by: Qingyu Li <ieatmuttonchuan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/nfc')
-rw-r--r-- | net/nfc/rawsock.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c index e2188deb08dc..b927730d9ab0 100644 --- a/net/nfc/rawsock.c +++ b/net/nfc/rawsock.c @@ -344,10 +344,13 @@ static int rawsock_create(struct net *net, struct socket *sock, if ((sock->type != SOCK_SEQPACKET) && (sock->type != SOCK_RAW)) return -ESOCKTNOSUPPORT; - if (sock->type == SOCK_RAW) + if (sock->type == SOCK_RAW) { + if (!capable(CAP_NET_RAW)) + return -EPERM; sock->ops = &rawsock_raw_ops; - else + } else { sock->ops = &rawsock_ops; + } sk = sk_alloc(net, PF_NFC, GFP_ATOMIC, nfc_proto->proto, kern); if (!sk) |