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authorReshetova, Elena <elena.reshetova@intel.com>2017-06-30 13:08:07 +0300
committerDavid S. Miller <davem@davemloft.net>2017-07-01 07:39:09 -0700
commitedcb691871b27c3cc463b7291afe75f1c3423406 (patch)
tree5935d0a93146c27c2c33a89c6911dbbd706a4ad5 /net/ipv4/ip_fragment.c
parentnet: convert fib_rule.refcnt from atomic_t to refcount_t (diff)
downloadlinux-dev-edcb691871b27c3cc463b7291afe75f1c3423406.tar.xz
linux-dev-edcb691871b27c3cc463b7291afe75f1c3423406.zip
net: convert inet_frag_queue.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/ipv4/ip_fragment.c')
-rw-r--r--net/ipv4/ip_fragment.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index b3cdeec85f1f..9a8cfac503dc 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -312,7 +312,7 @@ static int ip_frag_reinit(struct ipq *qp)
unsigned int sum_truesize = 0;
if (!mod_timer(&qp->q.timer, jiffies + qp->q.net->timeout)) {
- atomic_inc(&qp->q.refcnt);
+ refcount_inc(&qp->q.refcnt);
return -ETIMEDOUT;
}