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authorReshetova, Elena <elena.reshetova@intel.com>2017-07-04 15:53:11 +0300
committerDavid S. Miller <davem@davemloft.net>2017-07-04 22:35:17 +0100
commitaf4207494d9c8e089df80e9c1ceac44f2b3e7b53 (patch)
tree1577989d23ea6d89972dc02ee3dd9aa18bb97398 /net/netrom/nr_route.c
parent16f73c964956e0f78669f1681191093dd030c9ee (diff)
downloadlinux-af4207494d9c8e089df80e9c1ceac44f2b3e7b53.tar.bz2
net, netrom: convert nr_neigh.refcount 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/netrom/nr_route.c')
-rw-r--r--net/netrom/nr_route.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c
index d72a4f1558f2..6b72970a0d6a 100644
--- a/net/netrom/nr_route.c
+++ b/net/netrom/nr_route.c
@@ -149,7 +149,7 @@ static int __must_check nr_add_node(ax25_address *nr, const char *mnemonic,
nr_neigh->count = 0;
nr_neigh->number = nr_neigh_no++;
nr_neigh->failed = 0;
- atomic_set(&nr_neigh->refcount, 1);
+ refcount_set(&nr_neigh->refcount, 1);
if (ax25_digi != NULL && ax25_digi->ndigi > 0) {
nr_neigh->digipeat = kmemdup(ax25_digi,
@@ -431,7 +431,7 @@ static int __must_check nr_add_neigh(ax25_address *callsign,
nr_neigh->count = 0;
nr_neigh->number = nr_neigh_no++;
nr_neigh->failed = 0;
- atomic_set(&nr_neigh->refcount, 1);
+ refcount_set(&nr_neigh->refcount, 1);
if (ax25_digi != NULL && ax25_digi->ndigi > 0) {
nr_neigh->digipeat = kmemdup(ax25_digi, sizeof(*ax25_digi),