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| author | Jason Xing <kernelxing@tencent.com> | 2024-03-04 16:20:35 +0800 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2024-03-15 10:48:19 -0400 |
| commit | 7510b08c5f5ba15983da004b021fc6154eeb4047 (patch) | |
| tree | 6e0b267995d6cb492e25010e9c9f0ed0fafe1758 | |
| parent | b3b87525b54599601f4a7e26d61cc82e82def272 (diff) | |
| download | linux-stable-7510b08c5f5ba15983da004b021fc6154eeb4047.tar.gz linux-stable-7510b08c5f5ba15983da004b021fc6154eeb4047.tar.bz2 linux-stable-7510b08c5f5ba15983da004b021fc6154eeb4047.zip | |
netrom: Fix a data-race around sysctl_netrom_default_path_quality
[ Upstream commit 958d6145a6d9ba9e075c921aead8753fb91c9101 ]
We need to protect the reader reading sysctl_netrom_default_path_quality
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>
| -rw-r--r-- | net/netrom/nr_route.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c index baea3cbd76ca..6f709fdffc11 100644 --- a/net/netrom/nr_route.c +++ b/net/netrom/nr_route.c @@ -153,7 +153,7 @@ static int __must_check nr_add_node(ax25_address *nr, const char *mnemonic, nr_neigh->digipeat = NULL; nr_neigh->ax25 = NULL; nr_neigh->dev = dev; - nr_neigh->quality = sysctl_netrom_default_path_quality; + nr_neigh->quality = READ_ONCE(sysctl_netrom_default_path_quality); nr_neigh->locked = 0; nr_neigh->count = 0; nr_neigh->number = nr_neigh_no++; |