From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55917) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WO5uh-0008VV-V0 for qemu-devel@nongnu.org; Thu, 13 Mar 2014 09:43:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WO5uX-0003kQ-RB for qemu-devel@nongnu.org; Thu, 13 Mar 2014 09:43:11 -0400 Received: from e24smtp02.br.ibm.com ([32.104.18.86]:50609) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WO5uX-0003k6-EN for qemu-devel@nongnu.org; Thu, 13 Mar 2014 09:43:01 -0400 Received: from /spool/local by e24smtp02.br.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 13 Mar 2014 10:42:58 -0300 Received: from d24relay02.br.ibm.com (d24relay02.br.ibm.com [9.13.184.26]) by d24dlp02.br.ibm.com (Postfix) with ESMTP id D27C01DC005E for ; Thu, 13 Mar 2014 09:42:55 -0400 (EDT) Received: from d24av04.br.ibm.com (d24av04.br.ibm.com [9.8.31.97]) by d24relay02.br.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id s2DDgk2M54198492 for ; Thu, 13 Mar 2014 10:42:47 -0300 Received: from d24av04.br.ibm.com (localhost [127.0.0.1]) by d24av04.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id s2DDgt5d011312 for ; Thu, 13 Mar 2014 10:42:55 -0300 From: Eduardo Otubo Date: Thu, 13 Mar 2014 10:42:43 -0300 Message-Id: <1394718164-7883-2-git-send-email-otubo@linux.vnet.ibm.com> In-Reply-To: <1394718164-7883-1-git-send-email-otubo@linux.vnet.ibm.com> References: <1394718164-7883-1-git-send-email-otubo@linux.vnet.ibm.com> Subject: [Qemu-devel] [PULL 01/02] seccomp: add timerfd_create and timerfd_settime to the whitelist List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: pmoore@redhat.com, debfx@fobos.de From: Felix Geyer libusb calls timerfd_create() and timerfd_settime() when it's built with timerfd support. Command to reproduce: -device usb-host,hostbus=1,hostaddr=3,id=hostdev0 Log messages: audit(1390730418.924:135): auid=4294967295 uid=121 gid=103 ses=4294967295 pid=5232 comm="qemu-system-x86" sig=31 syscall=283 compat=0 ip=0x7f2b0f4e96a7 code=0x0 audit(1390733100.580:142): auid=4294967295 uid=121 gid=103 ses=4294967295 pid=16909 comm="qemu-system-x86" sig=31 syscall=286 compat=0 ip=0x7f03513a06da code=0x0 Reading a few hundred MB from a USB drive on x86_64 shows this syscall distribution. Therefore the timerfd_settime priority is set to 242. calls syscall --------- ---------------- 5303600 write 2240554 read 2167030 ppoll 2134828 ioctl 704023 timerfd_settime 689105 poll 83122 futex 803 writev 476 rt_sigprocmask 287 recvmsg 178 brk Signed-off-by: Felix Geyer Acked-by: Eduardo Otubo --- qemu-seccomp.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/qemu-seccomp.c b/qemu-seccomp.c index caa926e..46554bd 100644 --- a/qemu-seccomp.c +++ b/qemu-seccomp.c @@ -143,6 +143,7 @@ static const struct QemuSeccompSyscall seccomp_whitelist[] = { { SCMP_SYS(getsockname), 242 }, { SCMP_SYS(getpeername), 242 }, { SCMP_SYS(accept4), 242 }, + { SCMP_SYS(timerfd_settime), 242 }, { SCMP_SYS(newfstatat), 241 }, { SCMP_SYS(shutdown), 241 }, { SCMP_SYS(getsockopt), 241 }, @@ -225,7 +226,8 @@ static const struct QemuSeccompSyscall seccomp_whitelist[] = { { SCMP_SYS(fchmod), 240 }, { SCMP_SYS(shmget), 240 }, { SCMP_SYS(shmat), 240 }, - { SCMP_SYS(shmdt), 240 } + { SCMP_SYS(shmdt), 240 }, + { SCMP_SYS(timerfd_create), 240 } }; int seccomp_start(void) -- 1.7.1