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| author | Reshetova, Elena <elena.reshetova@intel.com> | 2017-07-04 09:34:56 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-04 01:29:04 -0700 |
| commit | 271201c09c86cd75e0fd6206bde689176e85aa21 (patch) | |
| tree | 651a50d749adf45a651b8bcc9813dd049aeccffa /net/ipv6 | |
| parent | 1be9246077f6bb1583f9347c599480621d63c66a (diff) | |
| download | linux-271201c09c86cd75e0fd6206bde689176e85aa21.tar.gz linux-271201c09c86cd75e0fd6206bde689176e85aa21.tar.bz2 linux-271201c09c86cd75e0fd6206bde689176e85aa21.zip | |
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 '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 2365f1224c6b..3c46e9513a31 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1050,7 +1050,7 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, ifa->idev = idev; /* For caller */ - in6_ifa_hold(ifa); + refcount_set(&ifa->refcnt, 1); /* Add to big hash table */ hash = inet6_addr_hash(addr); |