linux-kernel - Re: [PATCH] iommu: Fix NULL pointer deref when io_page

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Message-ID: <fca8f2cd-c3e5-40b0-a793-bded109e37bc@web.de>
Date: Fri, 16 Jan 2026 17:02:35 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: Daniel Thompson <daniel@...cstar.com>,
 linux-trace-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 Masami Hiramatsu <mhiramat@...nel.org>,
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 Steven Rostedt <rostedt@...dmis.org>
Cc: LKML <linux-kernel@...r.kernel.org>, Robin Murphy <robin.murphy@....com>,
 Will Deacon <will@...nel.org>
Subject: Re: [PATCH] iommu: Fix NULL pointer deref when io_page_fault
 tracepoint fires

…
> Fix this by adding logic to the tracepoint to safely propagate NULL.

* How do you think about to add any tags (like “Fixes” and “Cc”) accordingly?

* Would a summary phrase like “Prevent null pointer dereference for a tracepoint”
  be a bit nicer?


Regards,
Markus