diff options
| author | Reshetova, Elena <elena.reshetova@intel.com> | 2017-07-04 15:53:08 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-04 22:35:16 +0100 |
| commit | 0408c58be5a475c99b271f08d85859f7b59ec767 (patch) | |
| tree | 100c31c9fab2ae3b9fee699c83fa798cfbb0baad /include/net/lapb.h | |
| parent | 7b9364050246bd4c24b36b71c8990b2922dcc027 (diff) | |
net, lapb: convert lapb_cb.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 'include/net/lapb.h')
| -rw-r--r-- | include/net/lapb.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/lapb.h b/include/net/lapb.h index 9510f8725f03..85e773742f4e 100644 --- a/include/net/lapb.h +++ b/include/net/lapb.h @@ -1,6 +1,7 @@ #ifndef _LAPB_H #define _LAPB_H #include <linux/lapb.h> +#include <linux/refcount.h> #define LAPB_HEADER_LEN 20 /* LAPB over Ethernet + a bit more */ @@ -101,7 +102,7 @@ struct lapb_cb { struct lapb_frame frmr_data; unsigned char frmr_type; - atomic_t refcnt; + refcount_t refcnt; }; /* lapb_iface.c */ |