lkml.org 
[lkml]   [2020]   [Aug]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] net/bluetooth/rfcomm/sock.c: add CAP_NET_RAW check.
When creating a raw PF_BLUETOOTH socket,
CAP_NET_RAW needs to be checked first.

Signed-off-by: Qingyu Li <ieatmuttonchuan@gmail.com>
---
net/bluetooth/rfcomm/sock.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index ae6f80730561..d67d49e5aa00 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -321,6 +321,9 @@ static int rfcomm_sock_create(struct net *net, struct socket *sock,
if (sock->type != SOCK_STREAM && sock->type != SOCK_RAW)
return -ESOCKTNOSUPPORT;

+ if (sock->type == SOCK_RAW && !kern && !capable(CAP_NET_RAW))
+ return -EPERM;
+
sock->ops = &rfcomm_sock_ops;

sk = rfcomm_sock_alloc(net, sock, protocol, GFP_ATOMIC, kern);
--
2.17.1
\
 
 \ /
  Last update: 2020-08-18 10:34    [W:0.036 / U:0.508 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site