From: Ard Biesheuvel <ardb+git@google.com>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, will@kernel.org,
catalin.marinas@arm.com, maz@kernel.org,
Ard Biesheuvel <ardb@kernel.org>,
Kevin Brodsky <kevin.brodsky@arm.com>,
Mark Brown <broonie@kernel.org>
Subject: [PATCH 0/4] fixes for data/bss linear alias unmap series
Date: Wed, 3 Jun 2026 18:09:50 +0200 [thread overview]
Message-ID: <20260603160949.3372482-6-ardb+git@google.com> (raw)
From: Ard Biesheuvel <ardb@kernel.org>
Fixes for the data/bss linear alias unmap series:
- Fix KASAN related issue reported by Mark, by moving all KASAN page
tables out of BSS [on arm64], not just the ones defined under
arch/arm64
- Fix two issues spotted by Sashiko
- Fix the CKI reported WARN() splat on BBML2_NOABORT systems that try to
split block mappings too early.
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Ard Biesheuvel (4):
arm64: Move generic KASAN page tables out of BSS too
arm64: Avoid double evaluation of __ptep_get()
arm64: mte: Disregard the zero page explicitly for manipulating tags
arm64: mm: Defer remap of linear alias of data/bss
arch/arm64/include/asm/linkage.h | 2 ++
arch/arm64/include/asm/mmu.h | 2 --
arch/arm64/include/asm/mte.h | 5 +++++
arch/arm64/include/asm/pgtable.h | 4 ----
arch/arm64/kernel/vmlinux.lds.S | 8 ++++----
arch/arm64/mm/fixmap.c | 6 +++---
arch/arm64/mm/kasan_init.c | 2 +-
arch/arm64/mm/mmu.c | 20 +++++++++++++-------
include/linux/linkage.h | 4 ++++
mm/kasan/init.c | 10 +++++-----
10 files changed, 37 insertions(+), 26 deletions(-)
base-commit: 63e0b6a5b6934d6a919d1c65ea185303200a1874
--
2.54.0.1013.g208068f2d8-goog
next reply other threads:[~2026-06-03 16:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-03 16:09 Ard Biesheuvel [this message]
2026-06-03 16:09 ` [PATCH 1/4] arm64: Move generic KASAN page tables out of BSS too Ard Biesheuvel
2026-06-03 16:09 ` [PATCH 2/4] arm64: Avoid double evaluation of __ptep_get() Ard Biesheuvel
2026-06-03 16:09 ` [PATCH 3/4] arm64: mte: Disregard the zero page explicitly for manipulating tags Ard Biesheuvel
2026-06-03 16:09 ` [PATCH 4/4] arm64: mm: Defer remap of linear alias of data/bss Ard Biesheuvel
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