diff options
| author | Reshetova, Elena <[email protected]> | 2017-06-30 10:07:58 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2017-07-01 14:39:07 +0000 |
| commit | 633547973ffc32fd2c815639d4675e1531f0896f (patch) | |
| tree | 751ca7a379366af93f578d9f35f48339d4d2dd9b /net/ipv6/tcp_ipv6.c | |
| parent | net: convert nf_bridge_info.use from atomic_t to refcount_t (diff) | |
| download | kernel-633547973ffc32fd2c815639d4675e1531f0896f.tar.gz kernel-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 <[email protected]>
Signed-off-by: Hans Liljestrand <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Signed-off-by: David Windsor <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
| -rw-r--r-- | net/ipv6/tcp_ipv6.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index f85cbfc183d6..f1a4881d9835 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -734,7 +734,7 @@ static void tcp_v6_init_req(struct request_sock *req, np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo || np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim || np->repflow)) { - atomic_inc(&skb->users); + refcount_inc(&skb->users); ireq->pktopts = skb; } } |