diff options
| author |   Eric Dumazet <edumazet@google.com> | 2025-11-21 08:32:53 +0000 |
|---|---|---|
| committer |   Paolo Abeni <pabeni@redhat.com> | 2025-11-25 16:10:32 +0100 |
| commit | 4792c3a4c1470202b0d5bf44b6058cb0fb050ba8 (patch) | |
| tree | 1263d5636e22aa6398da1c358ef9b4625ade973a /net/core/dev.c | |
| parent | net: prefech skb->priority in __dev_xmit_skb() (diff) | |
| download | wireguard-linux-4792c3a4c1470202b0d5bf44b6058cb0fb050ba8.tar.xz wireguard-linux-4792c3a4c1470202b0d5bf44b6058cb0fb050ba8.zip | |
net: annotate a data-race in __dev_xmit_skb()
q->limit is read locklessly, add a READ_ONCE().
Fixes: 100dfa74cad9 ("net: dev_queue_xmit() llist adoption")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20251121083256.674562-12-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | net/core/dev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 53e2496dc429..10042139dbb0 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4194,7 +4194,7 @@ no_lock_out: do { if (first_n && !defer_count) { defer_count = atomic_long_inc_return(&q->defer_count); - if (unlikely(defer_count > q->limit)) { + if (unlikely(defer_count > READ_ONCE(q->limit))) { kfree_skb_reason(skb, SKB_DROP_REASON_QDISC_DROP); return NET_XMIT_DROP; } |