This can be allowed because it should only restrict more per the seccomp docs, and multiple apps use it today.
Signed-off-by: Jessica Frazelle <acidburn@docker.com>
Upstream-commit: b610fc226afdf663b0ad46ad982c27fdee61f671
Component: engine
Block kcmp, procees_vm_readv, process_vm_writev.
All these require CAP_PTRACE, and are only used for ptrace related
actions, so are not useful as we block ptrace.
Signed-off-by: Justin Cormack <justin.cormack@unikernel.com>
Upstream-commit: a0a8ca0ae0bc9dc7faa0b8bacf4ca376c7257348
Component: engine
The bpf syscall can load code into the kernel which may
persist beyond container lifecycle. Requires CAP_SYS_ADMIN
already.
Signed-off-by: Justin Cormack <justin.cormack@unikernel.com>
Upstream-commit: 33568405f34f363de49b1146119cc53bcb9e5f16
Component: engine
These provide an in kernel virtual machine for x86 real mode on x86
used by one very early DOS emulator. Not required for any normal use.
Signed-off-by: Justin Cormack <justin.cormack@unikernel.com>
Upstream-commit: 6c3ea7a511ca641cdf4fa4da1d775d5b6f4bef3e
Component: engine
The stime syscall is a legacy syscall on some architectures
to set the clock, should be blocked as time is not namespaced.
Signed-off-by: Justin Cormack <justin.cormack@unikernel.com>
Upstream-commit: 6300a08be905969b16197f6a82a3d0d99a3f99cd
Component: engine
clock_adjtime is the new posix style version of adjtime allowing
a specific clock to be specified. Time is not namespaced, so do
not allow.
Signed-off-by: Justin Cormack <justin.cormack@unikernel.com>
Upstream-commit: 0e5c43cddad304301ca8a82f652e15f75ee68cfe
Component: engine
This is a new version of init_module that takes a file descriptor
rather than a file name.
Signed-off-by: Justin Cormack <justin.cormack@unikernel.com>
Upstream-commit: 0d5306a0b69c912a981f3a4bd41b80beb1207851
Component: engine
The original umount syscall without flags argument needs to
be blocked too.
Signed-off-by: Justin Cormack <justin.cormack@unikernel.com>
Upstream-commit: 9be0d93cf74d1bb31c401f1154abc773af31cbd6
Component: engine
