[libvirt] [PATCH 3/3] nss: Don't leak memory on parse error
Daniel P. Berrangé
berrange at redhat.com
Fri Aug 9 09:04:20 UTC 2019
On Fri, Aug 09, 2019 at 10:49:11AM +0200, Michal Privoznik wrote:
> If yajl_parse() fails, we try to print an error message. For
> that, yajl_get_error() is used. However, its documentation say
> that caller is also responsible for freeing the memory it
> allocates by using yajl_free_error().
>
> Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
> ---
> tools/nss/libvirt_nss_leases.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/tools/nss/libvirt_nss_leases.c b/tools/nss/libvirt_nss_leases.c
> index 577b5a2fd1..977e3415f7 100644
> --- a/tools/nss/libvirt_nss_leases.c
> +++ b/tools/nss/libvirt_nss_leases.c
> @@ -399,9 +399,10 @@ findLeases(const char *file,
>
> if (yajl_parse(parser, (const unsigned char *)line, rv) !=
> yajl_status_ok) {
> - ERROR("Parse failed %s",
> - yajl_get_error(parser, 1,
> - (const unsigned char*)line, rv));
> + unsigned char *err = yajl_get_error(parser, 1,
> + (const unsigned char*)line, rv);
> + ERROR("Parse failed %s", (const char *) err);
> + yajl_free_error(parser, err);
> goto cleanup;
> }
> }
Same fix needed in libvirt_nss_macs.c too
Reviewed-by: Daniel P. Berrangé <berrange at redhat.com>
Regards,
Daniel
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