On 23. 3. 2020 17:10, Ján Tomko wrote:
> As Dave pointed out, someone creative might name a domain
> to make its logfile conflict with a logfile of another
> domain's virtiofsd log.
>
> Signed-off-by: Ján Tomko <jto...@redhat.com>
> Reported-by: Dr. David Alan Gilbert <dgilb...@redhat.com>
> ---
> src/qemu/qemu_virtiofs.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/src/qemu/qemu_virtiofs.c b/src/qemu/qemu_virtiofs.c
> index aaa25bcbb8..575b47fd74 100644
> --- a/src/qemu/qemu_virtiofs.c
> +++ b/src/qemu/qemu_virtiofs.c
> @@ -67,9 +67,9 @@ qemuVirtioFSCreateLogFilename(virQEMUDriverConfigPtr cfg,
> {
> g_autofree char *name = NULL;
>
> - name = g_strdup_printf("%s-%s", def->name, alias);
> + name = g_strdup_printf("%s-%s.log.fs", def->name, alias);
>
> - return virFileBuildPath(cfg->logDir, name, "-virtiofsd.log");
> + return virFileBuildPath(cfg->logDir, name, NULL);
> }
>
>
>
Why not go with virDomainDefGetShortName() then? Using def->name to name
a file is dangerous anyways. Oh, is it because we want to keep the same
log name across domain cold reboots?
Michal
