linux-kernel - Re: [PATCH] smpboot: Add NULL check before kthread

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Message-ID: <877buug79m.ffs@tglx>
Date: Wed, 10 Dec 2025 15:50:29 +0900
From: Thomas Gleixner <tglx@...utronix.de>
To: Kaushlendra Kumar <kaushlendra.kumar@...el.com>, peterz@...radead.org
Cc: linux-kernel@...r.kernel.org
Subject: Re: [PATCH] smpboot: Add NULL check before kthread_unpark()

On Mon, Nov 24 2025 at 10:41, Kaushlendra Kumar wrote:
> Add NULL check for tsk before calling kthread_unpark() in
> smpboot_unpark_thread() to prevent potential null pointer
> dereference.

How is that ever going to be NULL?

Thanks,

        tglx