diff options
| author |   Reshetova, Elena <elena.reshetova@intel.com> | 2017-07-04 09:34:55 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-07-04 01:29:04 -0700 |
| commit | 1be9246077f6bb1583f9347c599480621d63c66a (patch) | |
| tree | 1c53e30fe4a14dde41e95b4d10cba6df96fd91a1 /net/ipv6 | |
| parent | net, ipv6: convert ipv6_txoptions.refcnt from atomic_t to refcount_t (diff) | |
| download | linux-dev-1be9246077f6bb1583f9347c599480621d63c66a.tar.xz linux-dev-1be9246077f6bb1583f9347c599480621d63c66a.zip | |
net, ipv6: convert inet6_dev.refcnt from atomic_t to refcount_t
refcount_t type and corresponding API should be
used instead of atomic_t when the variable is used as
a reference counter. This allows to avoid accidental
refcounter overflows that might lead to use-after-free
situations.
Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David Windsor <dwindsor@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/addrconf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 114fb64cf176..2365f1224c6b 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -426,7 +426,7 @@ static struct inet6_dev *ipv6_add_dev(struct net_device *dev) } /* One reference from device. */ - in6_dev_hold(ndev); + refcount_set(&ndev->refcnt, 1); if (dev->flags & (IFF_NOARP | IFF_LOOPBACK)) ndev->cnf.accept_dad = -1; |