summaryrefslogtreecommitdiff
path: root/include/net/if_inet6.h
diff options
context:
space:
mode:
authorReshetova, Elena <elena.reshetova@intel.com>2017-07-04 09:34:56 +0300
committerDavid S. Miller <davem@davemloft.net>2017-07-04 11:29:04 +0300
commit271201c09c86cd75e0fd6206bde689176e85aa21 (patch)
tree651a50d749adf45a651b8bcc9813dd049aeccffa /include/net/if_inet6.h
parent1be9246077f6bb1583f9347c599480621d63c66a (diff)
downloadlinux-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/if_inet6.h')
-rw-r--r--include/net/if_inet6.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index e7a17b231afc..2b41cb86d62f 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -46,7 +46,7 @@ struct inet6_ifaddr {
/* In seconds, relative to tstamp. Expiry is at tstamp + HZ * lft. */
__u32 valid_lft;
__u32 prefered_lft;
- atomic_t refcnt;
+ refcount_t refcnt;
spinlock_t lock;
int state;