From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51670) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W8yDp-0007kx-VR for qemu-devel@nongnu.org; Thu, 30 Jan 2014 15:28:30 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1W8yDl-0006TO-33 for qemu-devel@nongnu.org; Thu, 30 Jan 2014 15:28:25 -0500 Received: from fobos.de ([188.165.199.226]:59835) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W8yDk-0006Rq-Qk for qemu-devel@nongnu.org; Thu, 30 Jan 2014 15:28:21 -0500 Message-ID: <52EAB5E1.70807@fobos.de> Date: Thu, 30 Jan 2014 21:28:17 +0100 From: Felix Geyer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] [PATCH v2] 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: Eduardo Otubo 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 --- qemu-seccomp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/qemu-seccomp.c b/qemu-seccomp.c index caa926e..b00922c 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) -- 1.9.rc1