From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38539) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uzohh-0007Q8-2k for qemu-devel@nongnu.org; Thu, 18 Jul 2013 09:57:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Uzohf-0006dV-PQ for qemu-devel@nongnu.org; Thu, 18 Jul 2013 09:57:09 -0400 From: Paul Moore Date: Thu, 18 Jul 2013 09:57:03 -0400 Message-ID: <20130718135703.8247.19213.stgit@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] [PATCH] seccomp: add arch_prctl() to the syscall whitelist List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, qemu-stable@nongnu.org Cc: coreyb@linux.vnet.ibm.com, otubo@linux.vnet.ibm.com 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 $1 Signed-off-by: Paul Moore --- 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)