From: Lecopzer Chen lecopzer.chen@mediatek.com
mainline inclusion from mainline-5.13-rc1 commit 71b613fc0c69080262f4ebe810c3d909d7ff8132 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I57SUK CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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We can backed shadow memory in vmalloc area after vmalloc area isn't populated at kasan_init(), thus make KASAN_VMALLOC selectable.
Signed-off-by: Lecopzer Chen lecopzer.chen@mediatek.com Acked-by: Andrey Konovalov andreyknvl@gmail.com Tested-by: Andrey Konovalov andreyknvl@gmail.com Tested-by: Ard Biesheuvel ardb@kernel.org Link: https://lore.kernel.org/r/20210324040522.15548-4-lecopzer.chen@mediatek.com Signed-off-by: Catalin Marinas catalin.marinas@arm.com (cherry picked from commit 71b613fc0c69080262f4ebe810c3d909d7ff8132) Signed-off-by: Kefeng Wang wangkefeng.wang@huawei.com Signed-off-by: Peng Liu liupeng256@huawei.com Reviewed-by: Kefeng Wang wangkefeng.wang@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 28b4e754e856..e253fdba1249 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -138,6 +138,7 @@ config ARM64 select HAVE_ARCH_JUMP_LABEL select HAVE_ARCH_JUMP_LABEL_RELATIVE select HAVE_ARCH_KASAN if !(ARM64_16K_PAGES && ARM64_VA_BITS_48) + select HAVE_ARCH_KASAN_VMALLOC if HAVE_ARCH_KASAN select HAVE_ARCH_KASAN_SW_TAGS if HAVE_ARCH_KASAN select HAVE_ARCH_KFENCE select HAVE_ARCH_KGDB