[PATCH] arm64: mm: fix accidental linear mapping of no-map reserved memory
Will Deacon
will at kernel.org
Thu Aug 6 10:11:41 PDT 2026
On Wed, 13 May 2026 09:02:55 +0800, liulhong617 at 163.com wrote:
> When reserved-memory regions with the "no-map" property are not
> page-aligned, the kernel may accidentally map them into the linear
> mapping, contradicting the no-map semantics.
>
> The root cause is a mismatch between /proc/iomem's address boundaries
> and the actual page table mapping boundaries:
>
> [...]
Applied to arm64 (for-next/mm), thanks!
[1/1] arm64: mm: fix accidental linear mapping of no-map reserved memory
https://git.kernel.org/arm64/c/7ace06a01efa
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
More information about the linux-arm-kernel
mailing list