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kernel: Activate CONFIG_ARM64_SW_TTBR0_PAN

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This activates "Emulate Privileged Access Never using TTBR0_EL1
switching" on ARM64.

This should prevent the kernel from reading code from user space in
kernel context.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Hauke Mehrtens
2019-04-07 18:06:34 +02:00
parent 9b1239451d
commit 32eb66881c
11 changed files with 2 additions and 9 deletions
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target/linux/octeontx/config-4.14
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@@ -55,7 +55,6 @@ CONFIG_ARM64_PAN=y
# CONFIG_ARM64_PTDUMP_DEBUGFS is not set
# CONFIG_ARM64_RANDOMIZE_TEXT_OFFSET is not set
CONFIG_ARM64_SSBD=y
# CONFIG_ARM64_SW_TTBR0_PAN is not set
CONFIG_ARM64_UAO=y
CONFIG_ARM64_VA_BITS=48
# CONFIG_ARM64_VA_BITS_39 is not set