linux/arch/arm64/mm
Anshuman Khandual edb739eed8 arm64/mm: Add warning for outside range requests in vmemmap_populate()
vmemmap_populate() does not validate the requested vmemmap address range to
be inside the platform assigned space i.e [VMEMMAP_START..VMEMMAP_END] for
vmemmap. Instead it would just go ahead and create the mapping which might
then overlap with other sections in the kernel virtual address space.

Just adding an warning here for range overrun which would help detect the
problem earlier on, before a potential struct page corruption. This also
makes vmemmap_populate() symmetrical with vmemmap_free() which already has
a similar warning.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/1609845851-25064-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2021-01-20 12:27:57 +00:00
..
cache.S arm64: mm: Use modern annotations for assembly functions 2020-01-08 12:23:38 +00:00
context.c arm64: mm: Pin down ASIDs for sharing mm with devices 2020-09-28 22:15:38 +01:00
copypage.c arm64: mte: reset the page tag in page->flags 2020-12-22 12:55:07 -08:00
dma-mapping.c dma-mapping: merge <linux/dma-noncoherent.h> into <linux/dma-map-ops.h> 2020-10-06 07:07:06 +02:00
extable.c arm64: Improve diagnostics when trapping BRK with FAULT_BRK_IMM 2020-09-18 16:35:54 +01:00
fault.c kasan, arm64: print report from tag fault handler 2020-12-22 12:55:08 -08:00
flush.c mm: introduce page_size() 2019-09-24 15:54:08 -07:00
hugetlbpage.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
init.c arm64: Remove arm64_dma32_phys_limit and its uses 2021-01-12 17:49:25 +00:00
ioremap.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
kasan_init.c kasan, arm64: rename kasan_init_tags and mark as __init 2020-12-22 12:55:07 -08:00
Makefile Merge branch 'for-next/mte' into for-next/core 2020-10-02 12:16:11 +01:00
mmap.c arm64: Use the generic devmem_is_allowed() 2020-12-11 12:28:35 -08:00
mmu.c arm64/mm: Add warning for outside range requests in vmemmap_populate() 2021-01-20 12:27:57 +00:00
mteswap.c arm64: mte: reset the page tag in page->flags 2020-12-22 12:55:07 -08:00
numa.c memblock: use separate iterators for memory and reserved regions 2020-10-13 18:38:35 -07:00
pageattr.c arch, mm: make kernel_page_present() always available 2020-12-15 12:13:43 -08:00
pgd.c mm: consolidate pgtable_cache_init() and pgd_cache_init() 2019-09-24 15:54:09 -07:00
physaddr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
proc.S arm64: kasan: Set TCR_EL1.TBID1 when KASAN_HW_TAGS is enabled 2021-01-05 17:52:19 +00:00
ptdump_debugfs.c arm64/mm: Hold memory hotplug lock while walking for kernel page table dump 2020-03-04 15:35:22 +00:00
ptdump.c kasan, arm64: expand CONFIG_KASAN checks 2020-12-22 12:55:08 -08:00