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ax25: enforce CAP_NET_RAW for raw sockets 

commit 0614e2b73768b502fc32a75349823356d98aae2c upstream.

When creating a raw AF_AX25 socket, CAP_NET_RAW needs to be checked
first.

Signed-off-by: Ori Nimron <orinimron123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
CVE-2019-17052
Signed-off-by: Kevin F. Haggerty <haggertk@lineageos.org>
Change-Id: I4b781c10113621f943df41bb5ed7caf2219ae36f
This commit is contained in:
Ori Nimron 2019-09-20 09:35:47 +02:00 committed by matteo0026
parent 28b83718d0
commit e5e23407c1
1 changed files with 2 additions and 0 deletions
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2
net/ax25/af_ax25.c
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@ -857,6 +857,8 @@ static int ax25_create(struct net *net, struct socket *sock, int protocol,
break;
case SOCK_RAW:
if (!capable(CAP_NET_RAW))
return -EPERM;
break;
default:
return -ESOCKTNOSUPPORT;