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

[Paul Moore <pmoore@redhat.com>]

The kill() syscall is triggered with the following command:

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

The resulting syslog/audit message:

 # ausearch -m SECCOMP
 ----
 time->Wed Nov 20 09:52:08 2013
 type=SECCOMP msg=audit(1384912328.482:6656): auid=0 uid=0 gid=0 ses=854
  subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=12087
  comm="qemu-kvm" sig=31 syscall=62 compat=0 ip=0x7f7a1d2abc67 code=0x0
 # scmp_sys_resolver 62
 kill

Reported-by: CongLi <coli@redhat.com>
Tested-by: CongLi <coli@redhat.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
---
 qemu-seccomp.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/qemu-seccomp.c b/qemu-seccomp.c
index 69cee44..cf07869 100644
--- a/qemu-seccomp.c
+++ b/qemu-seccomp.c
@@ -114,6 +114,7 @@ static const struct QemuSeccompSyscall seccomp_whitelist[] = {
     { SCMP_SYS(write), 244 },
     { SCMP_SYS(fcntl), 243 },
     { SCMP_SYS(tgkill), 242 },
+    { SCMP_SYS(kill), 242 },
     { SCMP_SYS(rt_sigaction), 242 },
     { SCMP_SYS(pipe2), 242 },
     { SCMP_SYS(munmap), 242 },