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| author | Reshetova, Elena <elena.reshetova@intel.com> | 2017-06-30 13:07:58 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-01 07:39:07 -0700 |
| commit | 633547973ffc32fd2c815639d4675e1531f0896f (patch) | |
| tree | 751ca7a379366af93f578d9f35f48339d4d2dd9b /drivers/isdn | |
| parent | 53869cebce4bc53f71a080e7830600d4ae1ab712 (diff) | |
| download | linux-stable-633547973ffc32fd2c815639d4675e1531f0896f.tar.gz linux-stable-633547973ffc32fd2c815639d4675e1531f0896f.tar.bz2 linux-stable-633547973ffc32fd2c815639d4675e1531f0896f.zip | |
net: convert sk_buff.users 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 'drivers/isdn')
| -rw-r--r-- | drivers/isdn/mISDN/socket.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index 99e5f9751e8b..c5603d1a07d6 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -155,7 +155,7 @@ mISDN_sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, copied = skb->len + MISDN_HEADER_LEN; if (len < copied) { if (flags & MSG_PEEK) - atomic_dec(&skb->users); + refcount_dec(&skb->users); else skb_queue_head(&sk->sk_receive_queue, skb); return -ENOSPC; |