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ANDROID: GKI: Enable CONFIG_USERFAULTFD

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Patches for SELinux support and kernel page-fault restriction in
userfaultfd have been backported. See references below.
So from security perspective it should be safe to enable it in Android.

1) https://android-review.googlesource.com/c/kernel/common/+/1576486
2) https://android-review.googlesource.com/c/kernel/common/+/1576704
3) https://android-review.googlesource.com/c/kernel/common/+/1612597
4) https://android-review.googlesource.com/c/kernel/common/+/1574667

Signed-off-by: Lokesh Gidra <lokeshgidra@google.com>
Bug: 160737021
Bug: 169683130
Change-Id: Iac5143da76783de57dba229f5761aff9297c17ae
(cherry picked from commit 16f20ce5ae)
This commit is contained in:
Lokesh Gidra
2021-03-03 13:09:40 -08:00
committed by Alistair Delva
parent ff9463f365
commit 29968bfa0a
2 changed files with 2 additions and 0 deletions
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1
arch/arm64/configs/gki_defconfig
View File

@@ -35,6 +35,7 @@ CONFIG_BOOT_CONFIG=y
CONFIG_KALLSYMS_ALL=y
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_USERFAULTFD=y
# CONFIG_RSEQ is not set
CONFIG_EMBEDDED=y
# CONFIG_COMPAT_BRK is not set

1
arch/x86/configs/gki_defconfig
View File

@@ -37,6 +37,7 @@ CONFIG_BOOT_CONFIG=y
CONFIG_KALLSYMS_ALL=y
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_USERFAULTFD=y
# CONFIG_RSEQ is not set
CONFIG_EMBEDDED=y
# CONFIG_COMPAT_BRK is not set