diff options
| author | Reshetova, Elena <elena.reshetova@intel.com> | 2017-06-30 13:08:03 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-01 17:39:08 +0300 |
| commit | 7658b36f1b3122c298213eed344f622e836b281b (patch) | |
| tree | ef9e9db6bba08079998fd5e30d3748b392603256 /net/ipv4/devinet.c | |
| parent | 8851ab526791530d00bbbd0952512d68684a44b8 (diff) | |
| download | linux-7658b36f1b3122c298213eed344f622e836b281b.tar.xz | |
net: convert in_device.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/ipv4/devinet.c')
| -rw-r--r-- | net/ipv4/devinet.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index a7dd088d5fc9..38d9af9b917c 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -252,7 +252,7 @@ static struct in_device *inetdev_init(struct net_device *dev) /* Reference in_dev->dev */ dev_hold(dev); /* Account for reference dev->ip_ptr (below) */ - in_dev_hold(in_dev); + refcount_set(&in_dev->refcnt, 1); err = devinet_sysctl_register(in_dev); if (err) { |