diff options
| author | Kuniyuki Iwashima <kuniyu@amazon.com> | 2022-07-13 23:51:55 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-07-29 18:10:31 +0300 |
| commit | cddc141d932d31eee1038bf6977c47c4575e61ae (patch) | |
| tree | e6e18c8c6bdf8a68f04f60127f330d8feb1216d0 /include | |
| parent | eb15262128b793e4b1d1c4514d3e6d19c3959764 (diff) | |
| download | linux-cddc141d932d31eee1038bf6977c47c4575e61ae.tar.xz | |
ip: Fix data-races around sysctl_ip_nonlocal_bind.
[ Upstream commit 289d3b21fb0bfc94c4e98f10635bba1824e5f83c ]
While reading sysctl_ip_nonlocal_bind, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its readers.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/inet_sock.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h index a80fd0ac4563..e3d943813ff8 100644 --- a/include/net/inet_sock.h +++ b/include/net/inet_sock.h @@ -357,7 +357,7 @@ static inline bool inet_get_convert_csum(struct sock *sk) static inline bool inet_can_nonlocal_bind(struct net *net, struct inet_sock *inet) { - return net->ipv4.sysctl_ip_nonlocal_bind || + return READ_ONCE(net->ipv4.sysctl_ip_nonlocal_bind) || inet->freebind || inet->transparent; } |