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kernel: Enable new BPF_JIT_ALWAYS_ON

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This option is not enabled by default, but disables the
BPF interpreter which can be used to inject speculative
execution into the kernel. Enabled it as it seems
like a good security measure.

Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
This commit is contained in:
Rolf Neugebauer 2018-02-01 13:45:58 +00:00
parent a6a5f69c8d
commit 82f3f9ae9a
4 changed files with 4 additions and 0 deletions
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1
kernel/config-4.14.x-aarch64
View File

@ -199,6 +199,7 @@ CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_ADVISE_SYSCALLS=y

1
kernel/config-4.14.x-x86_64
View File

@ -224,6 +224,7 @@ CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_ADVISE_SYSCALLS=y

1
kernel/config-4.9.x-aarch64
View File

@ -188,6 +188,7 @@ CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_ADVISE_SYSCALLS=y

1
kernel/config-4.9.x-x86_64
View File

@ -217,6 +217,7 @@ CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_ADVISE_SYSCALLS=y