diff options
| author | Reshetova, Elena <elena.reshetova@intel.com> | 2017-07-04 09:34:56 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-04 11:29:04 +0300 |
| commit | 271201c09c86cd75e0fd6206bde689176e85aa21 (patch) | |
| tree | 651a50d749adf45a651b8bcc9813dd049aeccffa /include/net/addrconf.h | |
| parent | 1be9246077f6bb1583f9347c599480621d63c66a (diff) | |
| download | linux-271201c09c86cd75e0fd6206bde689176e85aa21.tar.xz | |
net, ipv6: convert inet6_ifaddr.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 'include/net/addrconf.h')
| -rw-r--r-- | include/net/addrconf.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/net/addrconf.h b/include/net/addrconf.h index 620bd9a83ba9..6df79e96a780 100644 --- a/include/net/addrconf.h +++ b/include/net/addrconf.h @@ -350,18 +350,18 @@ void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp); static inline void in6_ifa_put(struct inet6_ifaddr *ifp) { - if (atomic_dec_and_test(&ifp->refcnt)) + if (refcount_dec_and_test(&ifp->refcnt)) inet6_ifa_finish_destroy(ifp); } static inline void __in6_ifa_put(struct inet6_ifaddr *ifp) { - atomic_dec(&ifp->refcnt); + refcount_dec(&ifp->refcnt); } static inline void in6_ifa_hold(struct inet6_ifaddr *ifp) { - atomic_inc(&ifp->refcnt); + refcount_inc(&ifp->refcnt); } |