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Re: [libvirt] [PATCH 1/2] lxc: Coverity false positive USE_AFTER_FREE



On 05/01/2013 11:53 AM, John Ferlan wrote:
> ---
>  src/lxc/lxc_container.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c
> index ac0f69c..d082a06 100644
> --- a/src/lxc/lxc_container.c
> +++ b/src/lxc/lxc_container.c
> @@ -1772,6 +1772,11 @@ static int lxcContainerSetupPivotRoot(virDomainDefPtr vmDef,
>      /* Some versions of Linux kernel don't let you overmount
>       * the selinux filesystem, so make sure we kill it first
>       */
> +    /* Filed coverity bug for false positive 'USE_AFTER_FREE' due to swap
> +     * of root->src with root->dst and the VIR_FREE(root->src) prior to the
> +     * reset of root->src in lxcContainerPrepareRoot()
> +     */
> +    /* coverity[deref_arg] */
>      if (STREQ(root->src, "/") &&
>          lxcContainerUnmountSubtree(SELINUX_MOUNT, false) < 0)
>          goto cleanup;
> 

ping?

Any thoughts on this - either way?  There is a Coverity bug filed, but
it'll take some time to work through their system.

Tks,

John


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