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authorReshetova, Elena <[email protected]>2017-07-04 09:34:58 +0300
committerDavid S. Miller <[email protected]>2017-07-04 01:29:04 -0700
commitaffa78bc6a204fac1b5ced4f34376f53c70ec0ac (patch)
treecf44a8f3ed84f1eb22d80b8b7689a202eeabd9e6 /include
parentd3981bc615f652b9ead0762dd180125ac2b21a3a (diff)
net, ipv6: convert ifacaddr6.aca_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 <[email protected]> Signed-off-by: Hans Liljestrand <[email protected]> Signed-off-by: Kees Cook <[email protected]> Signed-off-by: David Windsor <[email protected]> Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'include')
-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 4bb52ce634e8..d4088d1a688d 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -147,7 +147,7 @@ struct ifacaddr6 {
struct rt6_info *aca_rt;
struct ifacaddr6 *aca_next;
int aca_users;
- atomic_t aca_refcnt;
+ refcount_t aca_refcnt;
unsigned long aca_cstamp;
unsigned long aca_tstamp;
};