It appears that even a very simple /etc/qemu-ifup configuration can require the arch_prctl() syscall, see the example below:
#!/bin/sh /sbin/ifconfig $1 0.0.0.0 up /usr/sbin/brctl addif <switch> $1 Signed-off-by: Paul Moore <pmo...@redhat.com> --- qemu-seccomp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/qemu-seccomp.c b/qemu-seccomp.c index 173d185..9e91c73 100644 --- a/qemu-seccomp.c +++ b/qemu-seccomp.c @@ -234,7 +234,8 @@ static const struct QemuSeccompSyscall seccomp_whitelist[] = { { SCMP_SYS(waitid), 241 }, { SCMP_SYS(io_cancel), 241 }, { SCMP_SYS(io_setup), 241 }, - { SCMP_SYS(io_destroy), 241 } + { SCMP_SYS(io_destroy), 241 }, + { SCMP_SYS(arch_prctl), 240 } }; int seccomp_start(void)