Thread (6 messages) 6 messages, 3 authors, 2026-01-21

Re: [PATCH] iommu: Fix NULL pointer deref when io_page_fault tracepoint fires

From: Daniel Thompson <hidden>
Date: 2026-01-19 14:39:32
Also in: linux-arm-kernel, lkml

On Fri, Jan 16, 2026 at 05:02:35PM +0100, Markus Elfring wrote:
quoted
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?
I could add a

Fixes: f8f934c180f6 ("iommu/arm-smmu: Add support for driver IOMMU fault handlers")

However, who do you think I neglected to Cc:?

* Would a summary phrase like “Prevent null pointer dereference for a tracepoint”
  be a bit nicer?
I don't understand what is wrong with the original phrasing. Can you
explain why this change matters to you?


Daniel.
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