[Qemu-devel] [PATCH] seccomp: add semctl() to the syscall whitelist

[Paul Moore <pmoore@redhat.com>]

QEMU needs to call semctl() for correct operation.  This particular
problem was identified on shutdown with the following commandline:

 # qemu -sandbox on -monitor stdio \
   -device intel-hda -device hda-duplex -vnc :0

Signed-off-by: Paul Moore <pmoore@redhat.com>
---
 qemu-seccomp.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/qemu-seccomp.c b/qemu-seccomp.c
index ea8094d..0503764 100644
--- a/qemu-seccomp.c
+++ b/qemu-seccomp.c
@@ -230,7 +230,8 @@ static const struct QemuSeccompSyscall seccomp_whitelist[] = {
     { SCMP_SYS(timerfd_create), 240 },
     { SCMP_SYS(shmctl), 240 },
     { SCMP_SYS(mlock), 240 },
-    { SCMP_SYS(munlock), 240 }
+    { SCMP_SYS(munlock), 240 },
+    { SCMP_SYS(semctl), 240 }
 };
 
 int seccomp_start(void)