From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f74.google.com (mail-pj1-f74.google.com [209.85.216.74]) (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 EECA3205E36 for ; Tue, 18 Mar 2025 21:41:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.74 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742334094; cv=none; b=PzhKcCTdwo83IcYZnIA08Dw65mF7tyG3kj4wG0WRK2tAR31ECY8+/dUz+KBSXsjW5DwGT+qs23OuJh4ofnChjb0sFs5aC6aKVQ/V/MY9S0IipOG1x96CjY1ihLT3pA2JWXl41HaFZSw2HMM2ON32fld1lWYK2WnomGpZ7GtWtBg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742334094; c=relaxed/simple; bh=ikVSyIcDjEAbw/xIoxMzWfbS6Uydb28wDt5nD4ZIUd4=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=sIpRTmYm5s+CvGKdesiNjtu5bvWDddL3hkVsUXZCxWW5jLo7oN/HrMdfwe0sVooH+jrOyoKtQDsvOiJEJlCTPBy1oXl11eO3BZkhjkgCk+gNZXVCbYUbgWgvBjGMtfAm6lzHl4ItJ2gr0yfZXzHs2IdZsa2HOOhbIZQAKBXdu5E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--pcc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=4frTxwpf; arc=none smtp.client-ip=209.85.216.74 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--pcc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="4frTxwpf" Received: by mail-pj1-f74.google.com with SMTP id 98e67ed59e1d1-2ff6167e9ccso9042725a91.1 for ; Tue, 18 Mar 2025 14:41:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1742334091; x=1742938891; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=UnIVkMBpPNHpHkzRiOFkBTXk7lARMRWDLlaFgNuX0xs=; b=4frTxwpfBkUdDd66o6UISQEQ7LC0N+ECOF8tYiqW7ZhsJmJdRuyBePeLQfGa8IUNPe d3GUlCExrNbMOXV7UR5uOlDsp8HZdNAxm6AWJhMwBJuem50E2dZNjDV8mGEzjNkncsLV xULCUjBmysEA/zNPz4jWLePtZHURg4Z5I3GrYiQeQdoFDXVhVe9B7O4JvqIFqQ3ZU0RW 7Ac/pjVEypZT3M9NHfQXg8qh4HisZxYlxCElSexetCwNaNEufiomoKPXh/zWTg/l/4SY h2nSjeNdcy7q1Gm5SGtbtjKMTgDbqWsKALObr3NeGY/klWbq8JjNiXG47Hege4oHBuUC 0Xuw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1742334091; x=1742938891; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=UnIVkMBpPNHpHkzRiOFkBTXk7lARMRWDLlaFgNuX0xs=; b=HwyCGM0/n5MiEsAq++0Rrg0FrLH/cHgiS/fAx9XUp9T9Y1gqukD2W3H0enn8t7jev8 1nZXF4R/kgwwz5ayt14sPqHwIKyh8CAHuIjXA/OKj08qGkSMWM5i3yrWSVyvRhbvb4qe U87jZpzXNFD+VBDmRF3w0vbUP7se3Jg7vEk/DNOCKeQqBiFah/jUb3WtY6VsDtt6Tr98 eW1S9I476mI258ZDFNPbnex89bmtmK/NhkpDrv8DPbzzBUvr0c4274HHVX8toBEs5pfz Ve1khlZvSy5qPqoqvbndsElZ4GoLs5SlKCifEJvSIyL/ZynJrt0wna7GBXSZ6JGPDWF0 gnOg== X-Forwarded-Encrypted: i=1; AJvYcCXObb9vXsdbNj3c19qubgl9cQECRCeWzpLVU7tG90dRaIDIzTteScQhWifLOi/j3msAW2Z/hrEj5rV1+fk=@vger.kernel.org X-Gm-Message-State: AOJu0YwwZp2ZJF/3F52mxiEcE8EH2KF8XG3mB7KOb2cUQp4Ozxh6sviO 8EDkrp9WCnJlBKjHFmDIVa8lShGmmsTXQ8q4+WHX2MVuR0YlVG79SrrSQD81FQsgcw== X-Google-Smtp-Source: AGHT+IH5g0RwWRqxELrdXfaTvTVYsLQLg1QItq6jladHXzNeggEyGQsVp5rE0/DCSbV4ptgpJfGrPOk= X-Received: from pjbsc2.prod.google.com ([2002:a17:90b:5102:b0:2ff:611c:bae8]) (user=pcc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:3b4b:b0:2f6:be57:49d2 with SMTP id 98e67ed59e1d1-301bdf714e4mr366009a91.17.1742334091291; Tue, 18 Mar 2025 14:41:31 -0700 (PDT) Date: Tue, 18 Mar 2025 14:40:31 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.49.0.395.g12beb8f557-goog Message-ID: <20250318214035.481950-1-pcc@google.com> Subject: [PATCH v2 0/2] string: Add load_unaligned_zeropad() code path to sized_strscpy() From: Peter Collingbourne To: Alexander Viro , Christian Brauner , Jan Kara , Andrew Morton , Kees Cook , Andy Shevchenko , Andrey Konovalov , Catalin Marinas , Mark Rutland Cc: Peter Collingbourne , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="UTF-8" This series fixes an issue where strscpy() would sometimes trigger a false positive KASAN report with MTE. Peter Collingbourne (1): string: Add load_unaligned_zeropad() code path to sized_strscpy() Vincenzo Frascino (1): kasan: Add strscpy() test to trigger tag fault on arm64 lib/string.c | 13 ++++++++++--- mm/kasan/kasan_test_c.c | 31 ++++++++++++++++++++++++++++++- 2 files changed, 40 insertions(+), 4 deletions(-) -- 2.49.0.395.g12beb8f557-goog