From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f42.google.com (mail-pj1-f42.google.com [209.85.216.42]) (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 90FF63A0B11 for ; Fri, 20 Mar 2026 15:22:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.42 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774020137; cv=none; b=ZCYozKpcbj6wxHhK454dT1BFuG6PcAScUqMhiNmzBcq9cr5KjErwr+FGOwK1/5MTNiTU9mBfI5QYyGCMAvt8J4PfNIYD57BVY461yFRv8SG14tEL0SIYVdEwgkVXIjacxDAU/RQyyDtnXe3HRChw9WnHhf37iHrsPU160Egs3Q8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774020137; c=relaxed/simple; bh=wzjlx6/m1IF+o6ZzBjmWYJBkrfJsCLPieNSYuu9n8g4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KchXxFbFphMKwW7I9M9sXhZWUAuQ17BCtBulfZOyaWZYBxpSWYGSI5H7k+YkialONk/Y/HltpXtrG7MLtMcsu4t/04zP45opvjFAf3v/8ak8YJHQd0PlikuXOXbv3UhXdgpdJRgqABgOSXYpeBubHwMwfDUSYY1lge35NVD5h4I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=C9mTWDVf; arc=none smtp.client-ip=209.85.216.42 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="C9mTWDVf" Received: by mail-pj1-f42.google.com with SMTP id 98e67ed59e1d1-35b88a4f123so960663a91.1 for ; Fri, 20 Mar 2026 08:22:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1774020136; x=1774624936; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Vug4xw51SY7nIDNg+l1R8UK1FZuQ1hUqr+zLZCuFim0=; b=C9mTWDVfYS5kbpZd7zahmMqe/eFjWNV/hxNZfq3DO2h05YNXra3erzp/kOKpygYjbg VYHHL0TdAlLxnPp/A9Cs1jEYvfNg7t2QWvszPE6IRx2Uo43MlLkjUwfP9PztAZSOrRZN brE2i7qeBb11m4OoU2gAOMsGM+E3nXovq5lI2BGd8bumo2Nu8yZb10S545jwGYwKhScB pcGSwdQJOr1tDt++ie3xACwuPKAUSBhzmqjS4p2iCT2giFSJOPfzCTSccBfkPfMGW45w 6PlwQ2DqVDVzh8aMeFe7HUqbLmS8mTZwH7i00+6djtjkaThvXxjj4cfrlQZhSD8AVeKo Yn6w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1774020136; x=1774624936; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=Vug4xw51SY7nIDNg+l1R8UK1FZuQ1hUqr+zLZCuFim0=; b=ebdsf6dPWQBZKqMmtMryaVjxh1ULxf/izDZuEXSjF7S0Xmo9qrImN3Js/izs0nu6qT l+xBF2ej7M4nAYoAJDK+wgKUbsLlpf+AlTgddvWL55iMXVyOg53n2/K+u4ANdZZ1rE1w ptARhEYGE2sRK0YXcbvIchO0E6Xo2OKFKEsQxETgIG2rDaOdFRrupFmsLvhRA9Lh/uEH TYKPk57Va6KPWCzqkHvEaCM8t9n2JTWefkWfxgnet2XE+AmT6/FW8budHMNBIWdOShPU 1NjlXjQUrvnm9dsU2nL+V1njptFWNli9PLXQ9xNb9C8eD87mdo1mZUXlXvP0QdTjiOX9 5uTw== X-Forwarded-Encrypted: i=1; AJvYcCVTC9ML/1DS9KZJPKefG5Zhm9B2i+2yAvF8/uEUzYaBwR2GcfCLRfrwxEJ4ZajnU+8NZJ6s122KXMTFIgs=@vger.kernel.org X-Gm-Message-State: AOJu0YzyBPujYEMxk/SJGYw5qyMs1x6O7LstrGAZ5lDSjeyMat03mtxT SuwVyP7orNaZbk++ihAJeTKB6N29GH+LTRrP0q+HT7fKf7X39DfZTvCx X-Gm-Gg: ATEYQzy+bJmCKja9FyWcbMADmEeXDYDTcCz6C8TSu7AyKd9KrybGWcw8eVk7DCYTjET jLo2978HTknmvTzmdZGLmd9UWYZN1alBJlj9aN4EQcWYMGIdLXougyecB6kWusL4VJbVXubo7h0 eTJtKxgnz2IEiHTaYeWsEccwTmyzAiw9gTI5ApyoDbsanRrlPwFz3+NsFGDk0hTg+6hOZ5Bymj8 pWu45wQX7tIlKsToj93f+t75IE+pkHWxCrXdp2YWolN4nxali7yK64V1G5/esUXw63lMz1Sn42a kVXseEgeGNa/U5PqaBqp44B34z0AXRvXrNxgONCpe5WDapFisztt0L0XuESHzRWK9OObaty2jB0 qYCkjqNSrWM5Q9XpGYRJKLblTfAVsyL112Hy0KviZ29jtCip4uNO2fxJ+sMuMD5A4jDxD92j7p4 KvfGZrpXUSebvXJ/JfOWT/4ebh X-Received: by 2002:a17:90b:28c8:b0:34a:be93:72ee with SMTP id 98e67ed59e1d1-35bd27807c5mr2363550a91.8.1774020135892; Fri, 20 Mar 2026 08:22:15 -0700 (PDT) Received: from paeyz.Davolink ([49.172.60.165]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-35bc60174e7sm5848715a91.6.2026.03.20.08.22.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Mar 2026 08:22:14 -0700 (PDT) From: paeyz To: Russell King , gregkh@linuxfoundation.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, stable@kernel.org, Kees Cook , Al Viro Subject: Re: [PATCH] adfs: validate nzones in adfs_read_map() Date: Sat, 21 Mar 2026 00:21:31 +0900 Message-ID: <20260320152131.34551-1-iwasbaeyz@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <2026032021-renewable-control-9c81@gregkh> References: <2026032021-renewable-control-9c81@gregkh> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Bae Yeonju Hi, I tested moving the nzones validation to adfs_validate_bblk() on 6.12.36 with KASAN enabled. With this change, a crafted image with nzones=0 is rejected during validation: ADFS-fs (loop0): error: can't find an ADFS filesystem on dev loop0. mount() returns -EINVAL, and no crash or KASAN report is observed. So the issue can be prevented by validating nzones earlier in the validation path. Tested-by: Bae Yeonju