[Virtio-fs] [PATCH 13/13] virtiofsd, seccomp: Add clock_nanosleep() to allow list

Stefan Hajnoczi stefanha at redhat.com
Tue Oct 5 12:22:58 UTC 2021


On Thu, Sep 30, 2021 at 11:30:37AM -0400, Vivek Goyal wrote:
> g_usleep() calls nanosleep() and that now seems to call clock_nanosleep()
> syscall. Now these patches are making use of g_usleep(). So add
> clock_nanosleep() to list of allowed syscalls.
> 
> Signed-off-by: Vivek Goyal <vgoyal at redhat.com>
> ---
>  tools/virtiofsd/passthrough_seccomp.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/tools/virtiofsd/passthrough_seccomp.c b/tools/virtiofsd/passthrough_seccomp.c
> index cd24b40b78..03080806c0 100644
> --- a/tools/virtiofsd/passthrough_seccomp.c
> +++ b/tools/virtiofsd/passthrough_seccomp.c
> @@ -117,6 +117,7 @@ static const int syscall_allowlist[] = {
>      SCMP_SYS(writev),
>      SCMP_SYS(umask),
>      SCMP_SYS(nanosleep),
> +    SCMP_SYS(clock_nanosleep),

This patch can be dropped once sleep has been replaced by a condvar.
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