[libvirt] [PATCH] polkit_driver: fix possible segfault
Jiri Denemark
jdenemar at redhat.com
Thu Sep 25 09:33:34 UTC 2014
On Thu, Sep 25, 2014 at 11:19:34 +0200, Pavel Hrdina wrote:
> The changes in commit c7542573 introduced a segfault. Found by coverity.
>
> Signed-off-by: Pavel Hrdina <phrdina at redhat.com>
> ---
> src/access/viraccessdriverpolkit.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/src/access/viraccessdriverpolkit.c b/src/access/viraccessdriverpolkit.c
> index 2bc1842..2fd4fed 100644
> --- a/src/access/viraccessdriverpolkit.c
> +++ b/src/access/viraccessdriverpolkit.c
> @@ -87,6 +87,12 @@ virAccessDriverPolkitGetCaller(const char *actionid,
> actionid);
> return -1;
> }
> + if (!pid) {
> + virAccessError(VIR_ERR_INTERNAL_ERROR, "%s",
> + _("No UNIX process ID available"));
> + goto cleanup;
> + }
> +
> if (virIdentityGetUNIXProcessID(identity, pid) < 0)
> goto cleanup;
> if (virIdentityGetUNIXProcessTime(identity, startTime) < 0)
> @@ -94,12 +100,6 @@ virAccessDriverPolkitGetCaller(const char *actionid,
> if (virIdentityGetUNIXUserID(identity, uid) < 0)
> goto cleanup;
>
> - if (!pid) {
I think Daniel rather wanted to check if (!*pid).
> - virAccessError(VIR_ERR_INTERNAL_ERROR, "%s",
> - _("No UNIX process ID available"));
> - goto cleanup;
> - }
> -
> if (virIdentityGetUNIXProcessTime(identity, startTime) < 0)
> goto cleanup;
>
Jirka
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