From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f72.google.com (mail-pj1-f72.google.com [209.85.216.72]) (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 EEBCE37E5FF for ; Wed, 2 Sep 2026 20:22:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788380527; cv=none; b=R6LDnLvuEmG41QkYsX26GvC5fmio0+IIAOMcvvp35r0SbEV2aABepDPP0TalV0v4Bdd7cZWUA0fP3OWsNHCg0K5CHNEQA5CM7CGqmz25QzryY8smQYkb96RKYhHb1DAQp9iOhsUSz+HX0uJ5upxTEep1QDcOIyollLZY/jzb8qs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788380527; c=relaxed/simple; bh=B0vK6YTDpQs2GopgLT4bEK5kK3s52dfugzneav7KDeQ=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=ho7gqq74uHAsbJozdTo7zDxdFlKuVi6PZEkZJ1J7Q1ttO+zME+0iaJN7mKSRCrAOwQJJngHkKxVOhCSigDj1PhjcrSF1ufjnSusLmlkpkLzQNx1TUXpeH1q61fjYOBqLG6ktW/mL8PWWfOvNNcIfyM/Xqjoa1J44yyjcfjbM11o= 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=iZjcAyXl; arc=none smtp.client-ip=209.85.216.72 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="iZjcAyXl" Received: by mail-pj1-f72.google.com with SMTP id 98e67ed59e1d1-381250979d5so1954998a91.0 for ; Wed, 02 Sep 2026 13:22:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1788380525; x=1788985325; darn=vger.kernel.org; h=content-type:cc:to:from:subject:message-id:mime-version:date:from :to:cc:subject:date:message-id:reply-to:content-type; bh=FNTpXX+qFZkepqUD97/CzK3xxhgqfbaP8aZpgIAie9U=; b=iZjcAyXlRuykVL9NPtJBFnE50xTrb75uqS571yzi1IkPqSQAO0Beb2jOKZb+6x0WU4 pTuN8E48/jbLFAG9HKcceU4g1wfD4/4iOZr5dcxgdgoZxXebEJfnlqvWPOPW9CXHFJV4 95a22t0CM98scVpGfwJCW4c26lT88WwFpWHCxNlr/LC91l76gf5+b1AfViH2drmt10ch FEBd253lqEq18Swcth/AUPjOC+zLXHR9hrQUtaptJU8tZR26ZIpONs/Y7gwjkxHV+RBv MwT/ZG6ET5YI4Gu6jD6U+WC5oxgwOFcQsLWwHgUn0eKongb7ilYHaxgIobuh77hdi84T Cczg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1788380525; x=1788985325; h=content-type:cc:to:from:subject:message-id:mime-version:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=FNTpXX+qFZkepqUD97/CzK3xxhgqfbaP8aZpgIAie9U=; b=rn3erSb7yod7IbKelxx2SQYhxQ+B1MfgMYE70Tawt8fdb23VaE6ULxgXzJ8qjsN1yj JYTIwbIvaFokDgtJfPBL+/O6UVWk9ZATzAE0TopwSMcx3DBDTAbSU0k1E5TTyYpbrN/v j8ZKl0pBW1PFpowi/Knn55BC7UL4xZwJEtKs9dBzzSWc6kyANgDt9fbpvSWvjl6zvHyf 3lRamHKiU5mGuXN5MaIm2o88Ua2ZICZAeF3beJuJWHmBJTxZdCWLToSt/vE/SdEhRCDg avuiBKX2c4ZnT/vLBNHEpcUXoxgBcs21fC5c7+j4hZdVQUe53E9/w2VhSm9FAg7UAx/i 0AGA== X-Forwarded-Encrypted: i=1; AKwUvBz9Pc0TnnEykc3RYFSKhuaxM+Jw+BwF1WniCHSIVGcTeao31r1PWhWXxRpmBttlK0EnQiyMU/k=@vger.kernel.org X-Gm-Message-State: AFuF++lR8RKDRzkh2AqSMC57Yzt/4qry2vCcQo9hZgWD5X9nvCd3m+Yw EmWBy7+U3T1kgpzS4k6u06D8WcBoHwDoZVjZCf9e0KcqJxcGrEvFyvds0hy6NKYiSboEFmIPhLx XYcB6jg== X-Received: from pjbbh12.prod.google.com ([2002:a17:90b:48c:b0:381:171e:961c]) (user=kuniyu job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90a:dfc5:b0:398:d292:e6d5 with SMTP id 98e67ed59e1d1-39aee17a08fmr11907862a91.24.1788380524927; Wed, 02 Sep 2026 13:22:04 -0700 (PDT) Date: Wed, 2 Sep 2026 20:21:49 +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 2.55.0.970.g62bdec98f9-goog Message-ID: <20260902202202.892676-1-kuniyu@google.com> Subject: [PATCH v1 net 0/3] af_unix: Minor fixes for MSG_OOB and MSG_PEEK. From: Kuniyuki Iwashima To: "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Simon Horman , Fahad Alharbi , Kuniyuki Iwashima , Kuniyuki Iwashima , netdev@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Fahad Alharbi reported blocking recv(MSG_PEEK) could hog CPU due to OOB skb. Patch 1 and 2 fixes the issues and Patch 3 adds tests. Kuniyuki Iwashima (3): af_unix: Update last skb marker in manage_oob(). af_unix: Return immediately when manage_oob() returns NULL for 0-length buffer. selftest: af_unix: Add zero-buffer test for msg_oob.c net/unix/af_unix.c | 12 ++-- tools/testing/selftests/net/af_unix/msg_oob.c | 67 +++++++++++++++++++ 2 files changed, 75 insertions(+), 4 deletions(-) -- 2.55.0.970.g62bdec98f9-goog