From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f202.google.com (mail-pg1-f202.google.com [209.85.215.202]) (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 4E041205E3B for ; Mon, 12 Jan 2026 20:07:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768248461; cv=none; b=gIF3Ya5bEOoCsBxuxVBbJJPujrSBcgriRf7mm/5CyrXbm9Ndri2RDsmB6Cq5j0q9jE8cLkkUYCLQbnO4NwGmZWfen7CS/4ff1cWN4cuGztXu4HI3LC3ubhldlA9TwDHx5EE2GUZCdipO8gSkeie4h6/K2HYjGUZBcF3UxoUzaTo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768248461; c=relaxed/simple; bh=NWw5sgxzbYS8qrDP1dPKkPjsEqGnqFkvF/qF51QDZBo=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=drP4riS0nbctP5PdXBLgMH6i9GsVixHq5ml+IPkHtLsOtYEUOErmSw1z83ekyzK9ZTx4X+2KmdMFojlajh7zfzRt/QMh1TDTMUwqQ+QdpsYVgeTbbn9fVvl5x2PL8NnUYManrAhLpGR1wRmXRJ9VS2un+yFKfIBMVWVVIzNSxrU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--kuniyu.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=nMi/y03C; arc=none smtp.client-ip=209.85.215.202 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--kuniyu.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="nMi/y03C" Received: by mail-pg1-f202.google.com with SMTP id 41be03b00d2f7-c52ab75d57cso2805604a12.1 for ; Mon, 12 Jan 2026 12:07:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1768248459; x=1768853259; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=UUwzUKpmK9+5i4fmwqBAuA6TcWG30FG9tFvRECL63Yw=; b=nMi/y03CXNYhgFWdaixMGM3RYAS8QaMlLOtcbT+9FTk82O9Kgd4F+3akaxyN6RUxg8 fy3L0aN7Gu7+qUTCXzVi1AAN5n0ybTQXv7AbNEc/XgLVYsBpelbQrxV/LSj5nmXTVUNv +G0N28ThYJAceICxbvKCw1EfpMc+b2h43O9JBjNYo2OaJ7zm1DkKdcETuxhDOlBTjPJA OwunL0VLCyWt00IVgIfnNB2iJccRxeFcFxsk3bPZ6cOfkYhDQUVxRNZ0z/NCj8C0oBRB R8BVWF61b0clE1oMzS+NyVxYhWVC6AP6pCmrlt1ivllWhaojZmealQFN4QXYhuWH5au2 AFMQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1768248459; x=1768853259; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=UUwzUKpmK9+5i4fmwqBAuA6TcWG30FG9tFvRECL63Yw=; b=NLW4rXQin2389W2SizOS0Qpa0t9o/wNtp71EMPFqWie5fGuw1HO1gOugTT2KGnjolf Mk5ziQmtjkRcNTNY1UBx4pEC1jHpN/ebulaTCZbBjNwUiHACAOIjwuDjC8+X2fhylsrh cGWpLK05NqYjMQydYmfurCtvUl7QPsuwD3mmjjhYq3yIJgVtSjmb/I7eBKJjVfEnFhVq lwZ9toLjlefmhsdICxkc18prTNfeOFKYp5Lw5L8SOAuy9c7Y6F+RofxfApLHkWDrVZ+A 7rD6RkT2SP4mqUK+NQ6N67JPmOV4bSjmtpRdyPyV/B6uP41RnP7Xe1Bms9eFd/Huesk/ Tj1Q== X-Forwarded-Encrypted: i=1; AJvYcCVTkuVyDGIAstOCy52uNUJl7S5HaqBaoqLCjjMswxLZJuugsVnfHqzYRlrB2hleT4wASqyMy9Q=@vger.kernel.org X-Gm-Message-State: AOJu0Yz+tweby+fvFJjANJ2khc01u2Sk8sI93RHvnjdgczthY5g40GNW 4kW9Rx+WhaN9VNWAwV02dfXp6Agk6pI4adFp97CmWEtGkSoZvDQcAMvxFLrz1qWwbt7lNTaDE72 Ox7m87Q== X-Google-Smtp-Source: AGHT+IFZiy4K/hH+l5vzqXQosN9iv6RgAnVldwdFCc46MVt9CnThkRvMrVaZCWx5GUYaMrUchuFh7J9Z2Wo= X-Received: from pjbqx3.prod.google.com ([2002:a17:90b:3e43:b0:34a:b487:7aec]) (user=kuniyu job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:5846:b0:32e:a8b7:e9c with SMTP id 98e67ed59e1d1-34f68c28180mr14202995a91.29.1768248459588; Mon, 12 Jan 2026 12:07:39 -0800 (PST) Date: Mon, 12 Jan 2026 20:06:34 +0000 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.52.0.457.g6b5491de43-goog Message-ID: <20260112200736.1884171-1-kuniyu@google.com> Subject: [PATCH v1 net 0/2] fou/gue: Fix skb memleak with inner protocol 0. From: Kuniyuki Iwashima To: "David S . Miller" , David Ahern , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Simon Horman , Tom Herbert , Kuniyuki Iwashima , Kuniyuki Iwashima , netdev@vger.kernel.org Content-Type: text/plain; charset="UTF-8" syzbot reported memleak for a GUE packet with its inner protocol number 0. Patch 1 fixes the issue, and patch 2 fixes the same issue in FOU. Kuniyuki Iwashima (2): gue: Fix skb memleak with inner IP protocol 0. fou: Don't allow 0 for FOU_ATTR_IPPROTO. net/ipv4/fou_core.c | 3 +++ net/ipv4/fou_nl.c | 2 +- 2 files changed, 4 insertions(+), 1 deletion(-) -- 2.52.0.457.g6b5491de43-goog