diff options
| author | Reshetova, Elena <elena.reshetova@intel.com> | 2017-06-30 13:08:04 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-01 17:39:08 +0300 |
| commit | 433cea4d9bbb83cc848b80c51bb849a2ceb49379 (patch) | |
| tree | f881041efadd6139806c3f29691881b751228fec /include/linux/netpoll.h | |
| parent | 7658b36f1b3122c298213eed344f622e836b281b (diff) | |
| download | linux-433cea4d9bbb83cc848b80c51bb849a2ceb49379.tar.xz | |
net: convert netpoll_info.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/linux/netpoll.h')
| -rw-r--r-- | include/linux/netpoll.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h index 1828900c9411..27c0aaa22cb0 100644 --- a/include/linux/netpoll.h +++ b/include/linux/netpoll.h @@ -11,6 +11,7 @@ #include <linux/interrupt.h> #include <linux/rcupdate.h> #include <linux/list.h> +#include <linux/refcount.h> union inet_addr { __u32 all[4]; @@ -34,7 +35,7 @@ struct netpoll { }; struct netpoll_info { - atomic_t refcnt; + refcount_t refcnt; struct semaphore dev_lock; |