diff options
| author |   Reshetova, Elena <elena.reshetova@intel.com> | 2017-07-04 15:52:57 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-07-04 22:35:15 +0100 |
| commit | fbea9e0760bf17e681b9bfc25b97b408708b9ff2 (patch) | |
| tree | a4c8c287dfb2452e1ea5c94e089350cf93b948e6 /net/l2tp/l2tp_ppp.c | |
| parent | net, llc: convert llc_sap.refcnt from atomic_t to refcount_t (diff) | |
| download | linux-dev-fbea9e0760bf17e681b9bfc25b97b408708b9ff2.tar.xz linux-dev-fbea9e0760bf17e681b9bfc25b97b408708b9ff2.zip | |
net, l2tp: convert l2tp_tunnel.ref_count 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/l2tp/l2tp_ppp.c')
| -rw-r--r-- | net/l2tp/l2tp_ppp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c index 32ea0f3d868c..f0edb7209079 100644 --- a/net/l2tp/l2tp_ppp.c +++ b/net/l2tp/l2tp_ppp.c @@ -1616,7 +1616,7 @@ static void pppol2tp_seq_tunnel_show(struct seq_file *m, void *v) seq_printf(m, "\nTUNNEL '%s', %c %d\n", tunnel->name, (tunnel == tunnel->sock->sk_user_data) ? 'Y' : 'N', - atomic_read(&tunnel->ref_count) - 1); + refcount_read(&tunnel->ref_count) - 1); seq_printf(m, " %08x %ld/%ld/%ld %ld/%ld/%ld\n", tunnel->debug, atomic_long_read(&tunnel->stats.tx_packets), |