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| author | Eduardo Otubo <otubo@redhat.com> | 2017-03-13 22:16:01 +0100 |
|---|---|---|
| committer | Eduardo Otubo <otubo@redhat.com> | 2017-09-15 10:15:06 +0200 |
| commit | 995a226f880b807e05240e8752d6ce65679775be (patch) | |
| tree | 52c583395208ab69f6deb0bed685aeb3eefefbe0 /qemu-seccomp.c | |
| parent | 73a1e647256b09734ce64ef7a6001a0db03f7106 (diff) | |
| download | qemu-995a226f880b807e05240e8752d6ce65679775be.zip qemu-995a226f880b807e05240e8752d6ce65679775be.tar.gz qemu-995a226f880b807e05240e8752d6ce65679775be.tar.bz2 | |
seccomp: add spawn argument to command line
This patch adds [,spawn=deny] argument to `-sandbox on' option. It
blacklists fork and execve system calls, avoiding Qemu to spawn new
threads or processes.
Signed-off-by: Eduardo Otubo <otubo@redhat.com>
Diffstat (limited to 'qemu-seccomp.c')
| -rw-r--r-- | qemu-seccomp.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/qemu-seccomp.c b/qemu-seccomp.c index 978d66b..f3878a5 100644 --- a/qemu-seccomp.c +++ b/qemu-seccomp.c @@ -78,6 +78,10 @@ static const struct QemuSeccompSyscall blacklist[] = { { SCMP_SYS(setresgid), QEMU_SECCOMP_SET_PRIVILEGED }, { SCMP_SYS(setfsuid), QEMU_SECCOMP_SET_PRIVILEGED }, { SCMP_SYS(setfsgid), QEMU_SECCOMP_SET_PRIVILEGED }, + /* spawn */ + { SCMP_SYS(fork), QEMU_SECCOMP_SET_SPAWN }, + { SCMP_SYS(vfork), QEMU_SECCOMP_SET_SPAWN }, + { SCMP_SYS(execve), QEMU_SECCOMP_SET_SPAWN }, }; |