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| author | Reshetova, Elena <elena.reshetova@intel.com> | 2017-07-04 15:53:20 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-04 22:35:18 +0100 |
| commit | 5534a51ab79f8925ee33d9830646f5e6df27eb54 (patch) | |
| tree | 156a0d789daffb657852bf98d9566c7d1ccfeb12 /net/x25 | |
| parent | 5f9ccf6f38a1cfbaf6920b843c09d4e847a89e98 (diff) | |
| download | linux-5534a51ab79f8925ee33d9830646f5e6df27eb54.tar.gz linux-5534a51ab79f8925ee33d9830646f5e6df27eb54.tar.bz2 linux-5534a51ab79f8925ee33d9830646f5e6df27eb54.zip | |
net, x25: convert x25_neigh.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/x25')
| -rw-r--r-- | net/x25/x25_link.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/x25/x25_link.c b/net/x25/x25_link.c index bcaa180d6a3f..e0cd04d28352 100644 --- a/net/x25/x25_link.c +++ b/net/x25/x25_link.c @@ -266,7 +266,7 @@ void x25_link_device_up(struct net_device *dev) X25_MASK_PACKET_SIZE | X25_MASK_WINDOW_SIZE; nb->t20 = sysctl_x25_restart_request_timeout; - atomic_set(&nb->refcnt, 1); + refcount_set(&nb->refcnt, 1); write_lock_bh(&x25_neigh_list_lock); list_add(&nb->node, &x25_neigh_list); |