Re: [PATCH 0/2] Added debugfs node initialization and null pointer detection.
From: Greg KH
Date: Fri Aug 30 2024 - 06:33:27 EST
On Fri, Aug 30, 2024 at 06:21:53PM +0800, Yibin Ding wrote:
> From: Yibin Ding <Yibin.ding@xxxxxxxxxx>
>
> The two debugfs nodes (/sys/kernel/debug/interconnect/test_client/dst_node,
> src_node) do not initialize the character pointers before creation. For
> such uninitialized nodes, direct access will cause a crash due to accessing
> a null pointer.
> For example, directly execute the following command after booting:
> cat /sys/kernel/debug/interconnect/test_client/dst_node.
>
> Therefore, for the problem nodes, it is necessary to add initialization
> operations and null pointer detection when accessing.
>
> Yibin Ding (2):
> interconnect: Add character pointer initialization
> debugfs: Fix crash problem caused by accessing uninitialized nodes
>
> drivers/interconnect/debugfs-client.c | 10 ++++++++--
> fs/debugfs/file.c | 4 ++++
> 2 files changed, 12 insertions(+), 2 deletions(-)
>
> --
> 2.25.1
>
This series is not properly threaded for some reason. Can you resend
using a tool (like git send-email or something else) that preserves it
so that our tools can correctly pick them up?
thanks,
greg k-h