From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3456E250C15; Thu, 17 Apr 2025 18:56:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744916174; cv=none; b=KpbdYciA5fGtM8SP3rI85KbeKFrzbtQvkUlJJx6pgBtCyuPBMLkbG6HwYGSIjNB2cdqk1HSlK91IhkZhnCjM0uvfEyXOY2hYSgGpIMBeF+ZXXvpMkN5x6HTJ3eR5NFwPPD1e0ehe34VupYOhWu4xOBzNm/90nOW21Pdpdqzo3tQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744916174; c=relaxed/simple; bh=NWsMOZT17UhHO4WJ1HH4mj4kb4NPlmzyqPCoJMYvDIA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=hideXdjPunBD26CdseG/PlyBTVKeMlKDIdwu5WJ3+lDVjjY2gMaKCC5Frwwd67+6iABqqPbkQygYrvlpUx1UbhcyMxOaJk7KhaKxnUZNxGzrJMiUqcdTNaZ9y+WHaXkg1MiwuTcSLGB4+58ExAZ5xzcg2yVmXbv6cE9ngMyXYWg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=iXO5dyBQ; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="iXO5dyBQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 934C9C4CEE7; Thu, 17 Apr 2025 18:56:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1744916174; bh=NWsMOZT17UhHO4WJ1HH4mj4kb4NPlmzyqPCoJMYvDIA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iXO5dyBQ2EpllOmZDfd07txp0VLd1qHBCsFqZa+aeLh/bhMEf9UhuhJNC333Rox6+ 4r6HIbfzu/aL511QT+CPO8blyCflKzBUlHJBB1eli1VnAJsmMamajxp1i+ij49d1fb 42P8+sBIIp0V299a3yqANL1D54CuoWefVe9vhiDU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Philipp Stanner , Bjorn Helgaas , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= Subject: [PATCH 6.12 367/393] PCI: Fix wrong length of devres array Date: Thu, 17 Apr 2025 19:52:56 +0200 Message-ID: <20250417175122.364214374@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250417175107.546547190@linuxfoundation.org> References: <20250417175107.546547190@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Philipp Stanner commit f09d3937d400433080d17982bd1a540da53a156d upstream. The array for the iomapping cookie addresses has a length of PCI_STD_NUM_BARS. This constant, however, only describes standard BARs; while PCI can allow for additional, special BARs. The total number of PCI resources is described by constant PCI_NUM_RESOURCES, which is also used in, e.g., pci_select_bars(). Thus, the devres array has so far been too small. Change the length of the devres array to PCI_NUM_RESOURCES. Link: https://lore.kernel.org/r/20250312080634.13731-3-phasta@kernel.org Fixes: bbaff68bf4a4 ("PCI: Add managed partial-BAR request and map infrastructure") Signed-off-by: Philipp Stanner Signed-off-by: Bjorn Helgaas Signed-off-by: Krzysztof Wilczyński Cc: stable@vger.kernel.org # v6.11+ Signed-off-by: Greg Kroah-Hartman --- drivers/pci/devres.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/pci/devres.c +++ b/drivers/pci/devres.c @@ -40,7 +40,7 @@ * Legacy struct storing addresses to whole mapped BARs. */ struct pcim_iomap_devres { - void __iomem *table[PCI_STD_NUM_BARS]; + void __iomem *table[PCI_NUM_RESOURCES]; }; /* Used to restore the old INTx state on driver detach. */