linux-kernel - Re: [PATCH v4 0/4] Miscellaneous fixes for pci subsystem

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Message-ID: <728a9d24-b2cc-43f3-a1c3-12695155bf2f@huawei.com>
Date: Fri, 30 Jan 2026 15:53:10 +0800
From: duziming <duziming2@...wei.com>
To: <duziming2@...wei.com>
CC: <alex@...zbot.org>, <bhelgaas@...gle.com>, <chrisw@...hat.com>,
	<jbarnes@...tuousgeek.org>, <linux-kernel@...r.kernel.org>,
	<linux-pci@...r.kernel.org>, <liuyongqiang13@...wei.com>,
	<duziming2@...wei.com>
Subject: Re: [PATCH v4 0/4] Miscellaneous fixes for pci subsystem

Hi all,

Gentle ping on this patchset. Any feedback would be greatly appreciated.

On 2026/1/15 15:52, Ziming Du wrote:

> Miscellaneous fixes for pci subsystem
>
> Changes in v4:
> - Remove the architecture-specific #ifdef to apply the alignment
>    check for all platforms (including x86), as device registers are
>    naturally aligned anyway.
> - Fix a potential issue in proc_bus_pci_read() to make it consistent
>    with proc_bus_pci_write(), as suggested by Ilpo Järvinen.
> - Link to v3:https://lore.kernel.org/linux-pci/20260108015944.3520719-1-duziming2@huawei.com/
>
> Changes in v3:
> - Check *ppos before assign it to pos.
> - Link to v2:https://lore.kernel.org/linux-pci/20251224092721.2034529-1-duziming2@huawei.com/
>
> Changes in v2:
> - Correct grammer and indentation.
> - Remove unrelated stack traces from the commit message.
> - Modify the handling of pos by adding a non-negative check to ensure
>    that the input value is valid.
> - Use the existing IS_ALIGNED macro and ensure that after modification,
>    other cases still retuen -EINVAL as before.
> - Link to v1:https://lore.kernel.org/linux-pci/20251216083912.758219-1-duziming2@huawei.com/
>
> Yongqiang Liu (2):
>    PCI: Prevent overflow in proc_bus_pci_write()
>    PCI/sysfs: Prohibit unaligned access to I/O port
> Ziming Du (2):
>    PCI/sysfs: Fix null pointer dereference during hotplug
>    PCI: Prevent overflow in proc_bus_pci_read()
>
>   drivers/pci/pci-sysfs.c |  7 +++++++
>   drivers/pci/proc.c      | 11 +++++++++--
>   2 files changed, 16 insertions(+), 2 deletions(-)

Thanx du!