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{ "id": 2219724, "url": "http://patchwork.ozlabs.org/api/covers/2219724/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/cover/20260404012002.111873-1-carlos.bilbao@kernel.org/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/projects/28/?format=api", "name": "Linux PCI development", "link_name": "linux-pci", "list_id": "linux-pci.vger.kernel.org", "list_email": "linux-pci@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260404012002.111873-1-carlos.bilbao@kernel.org>", "list_archive_url": null, "date": "2026-04-04T01:20:00", "name": "[0/2] misc: pci_endpoint_test: doorbell fixes", "submitter": { "id": 93050, "url": "http://patchwork.ozlabs.org/api/people/93050/?format=api", "name": null, "email": "carlos.bilbao@kernel.org" }, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/cover/20260404012002.111873-1-carlos.bilbao@kernel.org/mbox/", "series": [ { "id": 498691, "url": "http://patchwork.ozlabs.org/api/series/498691/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=498691", "date": "2026-04-04T01:20:00", "name": "misc: pci_endpoint_test: doorbell fixes", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/498691/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2219724/comments/", "headers": { "Return-Path": "\n <linux-pci+bounces-51856-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-pci@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=YGt0CQ1R;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c15:e001:75::12fc:5321; helo=sin.lore.kernel.org;\n envelope-from=linux-pci+bounces-51856-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"YGt0CQ1R\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201" ], "Received": [ "from sin.lore.kernel.org (sin.lore.kernel.org\n [IPv6:2600:3c15:e001:75::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fnd7S1dZ8z1yD3\n\tfor <incoming@patchwork.ozlabs.org>; Sat, 04 Apr 2026 12:20:20 +1100 (AEDT)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sin.lore.kernel.org (Postfix) with ESMTP id 161E8300D4CF\n\tfor <incoming@patchwork.ozlabs.org>; Sat, 4 Apr 2026 01:20:07 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id A348122D792;\n\tSat, 4 Apr 2026 01:20:06 +0000 (UTC)", "from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org\n [10.30.226.201])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 8179586341;\n\tSat, 4 Apr 2026 01:20:06 +0000 (UTC)", "by smtp.kernel.org (Postfix) with ESMTPSA id ABFC8C4CEF7;\n\tSat, 4 Apr 2026 01:20:05 +0000 (UTC)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1775265606; cv=none;\n b=VMkjHeomsKxtAye4nJg2dMaYb8h2zYF31ixgv6+vLkptosRARPWtljWcKYLIPUX5XmwGqmPPzF8ZFW3gWyeO+x5WCqaqSv2BrwHzt00kKn5i3MA/DbBichjMdFNGXvE8Yr34tnLeOytcsgoaecNu/nFT98JL59T0IQeDG5mQe6g=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1775265606; c=relaxed/simple;\n\tbh=vNata3QFOqKQe1j0D8ga66OZ9TCYAfaeLK+oNigpX7g=;\n\th=From:To:Cc:Subject:Date:Message-ID:MIME-Version;\n b=ZQImHcOZvEQtM1JRN8R8e0VTqr8tAY2msrOWRx1oELv5am7ul+9Q35JlLUgzalopgVi3u0rJBskTAQND3FHIVy5FQmy3unWkKsrw8HeJycxdzRP2D/8vsVpCV8vj63d+kCxV3xDHRiJ71Nr22ToGuGZIwcbq1+l9aQnaaJDmwTI=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=YGt0CQ1R; arc=none smtp.client-ip=10.30.226.201", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1775265606;\n\tbh=vNata3QFOqKQe1j0D8ga66OZ9TCYAfaeLK+oNigpX7g=;\n\th=From:To:Cc:Subject:Date:From;\n\tb=YGt0CQ1RGpCSDsKMjOUvTBn9mmWMV1yR1FPBZCBm6n4NI25hY30Qah4IT4kf2+NVF\n\t 89UpIk9ac/k0UQGfLEfQv7CRpGJpKlwRPYpPxdgzp/n9mvo2Pr4rxDGwFzo8Sr4XlW\n\t cLPo5zhdI+6BKSpjCktwGzLduXzUmNlzCQH4texYj0Bdd6bIiR6kg3KZUO/9PnaIPR\n\t SNFY5EQUPqVMIOwxjaLZmJve8X3iUMqnWcgZRJ88naQfYPpY7B3Cy7xK8TBgpDrY2K\n\t p0EoCHszCtotO56FSaFnUX65dKhIlpbnE/cesGNhIPaqZ0TRoYyjveiYu/o0H51m5G\n\t GrfhFESlBVhoQ==", "From": "carlos.bilbao@kernel.org", "To": "mani@kernel.org,\n\tkwilczynski@kernel.org,\n\tkishon@kernel.org", "Cc": "arnd@arndb.de,\n\tgregkh@linuxfoundation.org,\n\tlinux-pci@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\tbilbao@vt.edu,\n\tCarlos Bilbao <carlos.bilbao@kernel.org>", "Subject": "[PATCH 0/2] misc: pci_endpoint_test: doorbell fixes", "Date": "Fri, 3 Apr 2026 18:20:00 -0700", "Message-ID": "<20260404012002.111873-1-carlos.bilbao@kernel.org>", "X-Mailer": "git-send-email 2.43.0", "Precedence": "bulk", "X-Mailing-List": "linux-pci@vger.kernel.org", "List-Id": "<linux-pci.vger.kernel.org>", "List-Subscribe": "<mailto:linux-pci+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-pci+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit" }, "content": "From: Carlos Bilbao <carlos.bilbao@kernel.org>\n\npci_endpoint_test_doorbell() reads the BAR number from the endpoint's test\nregister space and uses it directly as an index into test->bar[] without\nbounds checking. Since the value is a raw u32 written by the endpoint\nfirmware, any value is possible; values >= PCI_STD_NUM_BARS result in an\nout-of-bounds array access.\n\nPatch 1 adds the missing bounds check.\n\nPatch 2 removes a dead read of the same register that precedes the writel\nsequence; the DB_BAR register carries no read side effect and the assigned\nvalue is unconditionally overwritten before use.\n\n Carlos Bilbao (2):\n misc: pci_endpoint_test: validate BAR index in doorbell test\n misc: pci_endpoint_test: remove dead BAR read before doorbell trigger\n\n---\n drivers/misc/pci_endpoint_test.c | 6 +++++-\n 1 file changed, 5 insertions(+), 1 deletion(-)" }