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authorEric Dumazet <edumazet@google.com>2023-09-21 20:28:18 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-11-28 16:56:16 +0000
commit6f42bd24332773b4b478cd24e205e265cba5b427 (patch)
tree037db90988db9d03e1c879df43e230e5eaad363b /net/core
parent19ab5fd26441ad47847f163d2ffb6069418d6f4b (diff)
net: annotate data-races around sk->sk_dst_pending_confirm
[ Upstream commit eb44ad4e635132754bfbcb18103f1dcb7058aedd ] This field can be read or written without socket lock being held. Add annotations to avoid load-store tearing. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/sock.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/sock.c b/net/core/sock.c
index 8faa0f9cc083..662cd6d54ac7 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -557,7 +557,7 @@ struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie)
INDIRECT_CALL_INET(dst->ops->check, ip6_dst_check, ipv4_dst_check,
dst, cookie) == NULL) {
sk_tx_queue_clear(sk);
- sk->sk_dst_pending_confirm = 0;
+ WRITE_ONCE(sk->sk_dst_pending_confirm, 0);
RCU_INIT_POINTER(sk->sk_dst_cache, NULL);
dst_release(dst);
return NULL;