[Qemu-devel] [PATCH] seccomp: add timerfd_create and timerfd_settime to the whitelist

[Felix Geyer <debfx@fobos.de>]

libusb calls timerfd_create() and timerfd_settime() when it's built with
timerfd support.

Command to reproduce:

qemu -sandbox on -monitor stdio -device piix3-usb-uhci,id=usb
     -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

Signed-off-by: Felix Geyer <debfx@fobos.de>
---
 qemu-seccomp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/qemu-seccomp.c b/qemu-seccomp.c
index caa926e..2705468 100644
--- a/qemu-seccomp.c
+++ b/qemu-seccomp.c
@@ -225,7 +225,9 @@ 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 },
+    { SCMP_SYS(timerfd_settime), 240 }
 };

 int seccomp_start(void)
-- 
1.8.5.3