From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f198.google.com (mail-pl1-f198.google.com [209.85.214.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ED96C4A68AA for ; Tue, 22 Sep 2026 19:45:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790106344; cv=none; b=XrOtHvdy/+bdaJEdKOwAAnGGCKNBb6poQRjHMCWG2Mx7/8zsC3/juce4Ui5RXrokBs3EmQbQ3HCMfEw45aA6YNlTt+p77KZsZAyWtrPf/aMxJUOeo+f1gYG/GZS3Jazf/xkTFjgzR7pPBTtKNWhWA5L/6l67kXnYYvlAVcFNEos= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790106344; c=relaxed/simple; bh=UljtQ9XO6rbJkLCDeJXSzP2hU8m8OSu/SUn/z/6iVUc=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=Akf2yDfHlLjvjkTj/sqwZTflQHOwNT09R+3ZQblBx7Mcdsybg5z/8U0YFv50uE1xwdrTrOUVmARhRFfckCcVpdQ63hbq3ulKLS/edy/Q3pyCTpVgceSQtzwujl954yPwt0rf2zxp1c7QWcT7OJwLR3rAFnLYitSkoSnKyEeRrDw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--joshwash.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=vDKzk+Jz; arc=none smtp.client-ip=209.85.214.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--joshwash.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="vDKzk+Jz" Received: by mail-pl1-f198.google.com with SMTP id d9443c01a7336-2dc92350888so3047525ad.3 for ; Tue, 22 Sep 2026 12:45:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1790106342; x=1790711142; darn=vger.kernel.org; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:from:to:cc:subject:date:message-id:reply-to :content-type; bh=eWYEebvN53sOkHrhhlwZSz3/5d2DYKttJmC/W8rasEc=; b=vDKzk+JzBBTn6rAfjEqBMyPU2CXYQYNh/ugXqd8cMGmLPm1jN30z9cZYqEM9IJcpo8 Hu8D7nZ3GFr85WwKsQXfhIBDDfr02V3PqsXNM2xnqbJzJcq6EsO5SOfLOjclN3dRO0Gi 7morU4+CIzeCDD++Ned6Oj19jkgZQCYAX2JmICR/KjYYQFtskRSyjGIUbqh9Q00TypkD +pbPYJr52TPfLqP08nwLIWflBMDl2rECoIxmMbCH7tLq53NMvs0xKjdO1xIhArLftL/m wUQQUKwcAqQgN3KaIWzWKR33FZjfXECy6w8/f6JfrFwHQB3ofm7Z5PMtncbC6lphsT0U jOCA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790106342; x=1790711142; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=eWYEebvN53sOkHrhhlwZSz3/5d2DYKttJmC/W8rasEc=; b=GEPYaK0j0YJfGmd/490NcD2lRWA3n0aPVH/nPuu7m8eJT/2ZUcXt4dF0/W+KmMAHcl /rmhzN8DY+AjsQcGPxwOXyFgiwK6kUgcyob2IX55oFCZx7M7eBdNSEytS2jYTTy7aHyp tpTUIL8lOl2+4yiPVBsX4qoQi6W8NxenDmlXIX+eqM+YcYSSDJsg7m8PNRlsKaNN825N uoO/NLsiJevfSrNGSBz90mfjbXNgsS1osioQbqQy+jq0l1uFXjFNHnNQOHHR0vVFBmYL 51zJ9d1WTBax3JLSwTK/J7izREvwz11gwkcJriMUi6jZnKHPPjnWEVQ9k+XhJpnjCrLF ZQBQ== X-Gm-Message-State: AFuF++kqdzk3IWxpc+Qa7ad47dB8XSNCbf/77B4cD+kks7k25Z9VgwOR 8Vb2bZ+wtxfVDK2e/yq4cbNvHVJlZ+oqGw9N9WIN89VPUmgv8mGrh9hM4qweBHKTf2rsnYAIAJC osEsUVj5clbQf8mh5tjdAtrTDtdxtwEJGChtiBAGfOOx31t18YyBe/WaPfwxhlpZS8LMDVUIbbS fGroxaJF998nJByuqi+k/2kCF+OqTpm9ujZ+pGKDjeaBAASvM= X-Received: from pgde21.prod.google.com ([2002:a05:6a02:315:b0:cc2:1a89:e586]) (user=joshwash job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:2fce:b0:39e:6c68:c77b with SMTP id 98e67ed59e1d1-3a07e6b5895mr430876a91.49.1790106342068; Tue, 22 Sep 2026 12:45:42 -0700 (PDT) Date: Tue, 22 Sep 2026 12:45:26 -0700 In-Reply-To: <20260922194533.631387-1-joshwash@google.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260922194533.631387-1-joshwash@google.com> X-Mailer: git-send-email 2.55.0.1082.g2b9226bbc0-goog Message-ID: <20260922194533.631387-3-joshwash@google.com> Subject: [PATCH net v2 2/9] gve: fix XSK buffer leak when rings are stopped From: Joshua Washington To: netdev@vger.kernel.org Cc: Joshua Washington , Harshitha Ramamurthy , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Stanislav Fomichev , Jordan Rhee , Willem de Bruijn , Tim Hostetler , Ankit Garg , Eddie Phillips , Praveen Kaligineedi , Jeroen de Borst , linux-kernel@vger.kernel.org, bpf@vger.kernel.org, stable@vger.kernel.org Content-Type: text/plain; charset="UTF-8" GVE does not free XSK buffers when resetting ring state as a part of stopping queues. This causes all XSK buffers which are posted to the NIC to be leaked. Free XSK buffers attached to an allocated buf_state when stopping rings. Fixes: c1fffc5d66a7 ("gve: implement DQO RX datapath and control path for AF_XDP zero-copy") Cc: stable@vger.kernel.org Reviewed-by: Tim Hostetler Reviewed-by: Jordan Rhee Signed-off-by: Joshua Washington --- drivers/net/ethernet/google/gve/gve_rx_dqo.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/ethernet/google/gve/gve_rx_dqo.c b/drivers/net/ethernet/google/gve/gve_rx_dqo.c index c3f4a76b0fac..3a88b7e98b16 100644 --- a/drivers/net/ethernet/google/gve/gve_rx_dqo.c +++ b/drivers/net/ethernet/google/gve/gve_rx_dqo.c @@ -113,6 +113,12 @@ static void gve_rx_reset_ring_dqo(struct gve_priv *priv, int idx) gve_free_to_page_pool(rx, bs, false); else gve_free_qpl_page_dqo(bs); + + if (gve_buf_state_is_allocated(rx, bs) && + bs->xsk_buff) { + xsk_buff_free(bs->xsk_buff); + bs->xsk_buff = NULL; + } } } -- 2.55.0.1082.g2b9226bbc0-goog