netfilter: nfnetlink_acct: validate NFACCT_QUOTA parameter

If a quota bit is set in NFACCT_FLAGS but the NFACCT_QUOTA parameter is
missing then a NULL pointer dereference is triggered. CAP_NET_ADMIN is
required to trigger the bug.

Signed-off-by: Phil Turnbull <phil.turnbull@oracle.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Phil Turnbull 2016-05-03 16:39:19 -04:00 • committed by Pablo Neira Ayuso
commit eda3fc50da