seccomp: add arch_prctl() to the syscall whitelist
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 <pmoore@redhat.com>
Reviewed-by: Eduardo Otubo <otubo@linux.vnet.ibm.com>
Message-id: 20130718135703.8247.19213.stgit@localhost
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/qemu-seccomp.c b/qemu-seccomp.c
index 1d2f51c..37d38f8 100644
--- a/qemu-seccomp.c
+++ b/qemu-seccomp.c
@@ -217,7 +217,8 @@
{ 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)
