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| author | Reshetova, Elena <elena.reshetova@intel.com> | 2017-06-30 13:08:00 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-01 07:39:08 -0700 |
| commit | 14afee4b6092fde451ee17604e5f5c89da33e71e (patch) | |
| tree | 19be7a1d72a1b25c5e5366c1213cdda982aacca2 /net/ipv4/af_inet.c | |
| parent | 2638595afccf6554bfe55268ff9b2d3ac3dff2e6 (diff) | |
| download | linux-14afee4b6092fde451ee17604e5f5c89da33e71e.tar.gz | |
net: convert sock.sk_wmem_alloc 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/af_inet.c')
| -rw-r--r-- | net/ipv4/af_inet.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 58925b6597de..76c2077c3f5b 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -150,7 +150,7 @@ void inet_sock_destruct(struct sock *sk) } WARN_ON(atomic_read(&sk->sk_rmem_alloc)); - WARN_ON(atomic_read(&sk->sk_wmem_alloc)); + WARN_ON(refcount_read(&sk->sk_wmem_alloc)); WARN_ON(sk->sk_wmem_queued); WARN_ON(sk->sk_forward_alloc); |