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authorEric Dumazet <edumazet@google.com>2024-02-28 13:54:29 +0000
committerDavid S. Miller <davem@davemloft.net>2024-03-01 08:42:31 +0000
commite0bb2675fea2783c45bb95d74f00c55156720863 (patch)
tree0f7a1c6c8a215727d5dfd5ccc5c86fd9ca717b31 /net/ipv6/ipv6_sockglue.c
parente7135f484994494a38071e3653a83d21d305f50c (diff)
downloadlinux-e0bb2675fea2783c45bb95d74f00c55156720863.tar.gz
ipv6: annotate data-races around cnf.hop_limit
idev->cnf.hop_limit and net->ipv6.devconf_all->hop_limit might be read locklessly, add appropriate READ_ONCE() and WRITE_ONCE() annotations. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Florian Westphal <fw@strlen.de> # for netfilter parts Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ipv6_sockglue.c')
-rw-r--r--net/ipv6/ipv6_sockglue.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 56c3c467f9deb..f61d977ac0528 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -1346,7 +1346,7 @@ int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
}
if (val < 0)
- val = sock_net(sk)->ipv6.devconf_all->hop_limit;
+ val = READ_ONCE(sock_net(sk)->ipv6.devconf_all->hop_limit);
break;
}