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authorJason Xing <kernelxing@tencent.com>2024-03-04 11:20:42 +0300
committerSasha Levin <sashal@kernel.org>2024-03-15 17:48:16 +0300
commit652b0b35819610a42b8a90d21acb12f69943b397 (patch)
treec507844d1ad1600b1feffda15c53c49d2a899f9f /net/netrom/af_netrom.c
parentf3315a6edaec12b461031eab8c98c78111a41f95 (diff)
downloadlinux-652b0b35819610a42b8a90d21acb12f69943b397.tar.xz
netrom: Fix a data-race around sysctl_netrom_transport_requested_window_size
[ Upstream commit a2e706841488f474c06e9b33f71afc947fb3bf56 ] We need to protect the reader reading the sysctl value because the value can be changed concurrently. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Jason Xing <kernelxing@tencent.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/netrom/af_netrom.c')
-rw-r--r--net/netrom/af_netrom.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 76d66eb0de25..d780adf54e19 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -462,7 +462,7 @@ static int nr_create(struct net *net, struct socket *sock, int protocol,
msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_busy_delay));
nr->idle =
msecs_to_jiffies(sysctl_netrom_transport_no_activity_timeout);
- nr->window = sysctl_netrom_transport_requested_window_size;
+ nr->window = READ_ONCE(sysctl_netrom_transport_requested_window_size);
nr->bpqext = 1;
nr->state = NR_STATE_0;