arm64: kaslr: support randomized module area with KASAN_VMALLOC

Browse source

After KASAN_VMALLOC works in arm64, we can randomize module region
into vmalloc area now.

Test:
	VMALLOC area ffffffc010000000 fffffffdf0000000

	before the patch:
		module_alloc_base/end ffffffc008b80000 ffffffc010000000
	after the patch:
		module_alloc_base/end ffffffdcf4bed000 ffffffc010000000

	And the function that insmod some modules is fine.

Suggested-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com>
Link: https://lore.kernel.org/r/20210324040522.15548-5-lecopzer.chen@mediatek.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

...

This commit is contained in:

Lecopzer Chen 2021-03-24 12:05:21 +08:00 • committed by Catalin Marinas

parent 71b613fc0c

commit 31d02e7ab0

2 changed files with 19 additions and 15 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

18

arch/arm64/kernel/kaslr.c

View file

16

arch/arm64/kernel/module.c

View file