[libvirt] [PATCH] selinux: fix NULL dereference in GetSecurityMountOptions

[Daniel P. Berrange]

On Thu, Dec 13, 2012 at 11:44:37AM +0100, Ján Tomko wrote:
> In the case of an OOM error in virDomainDefGetSecurityLabelDef, secdef
> is set to NULL, then dereferenced while printing the debug message.
> ---
>  src/security/security_selinux.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/src/security/security_selinux.c b/src/security/security_selinux.c
> index 5409e32..9134bc8 100644
> --- a/src/security/security_selinux.c
> +++ b/src/security/security_selinux.c
> @@ -1993,7 +1993,8 @@ virSecuritySELinuxGetSecurityMountOptions(virSecurityManagerPtr mgr,
>          return NULL;
>      }
>  
> -    VIR_DEBUG("imageLabel=%s opts=%s", secdef->imagelabel, opts);
> +    VIR_DEBUG("imageLabel=%s opts=%s",
> +              secdef ? secdef->imagelabel : "(null)", opts);
>      return opts;
>  }
>  

ACK


Daniel
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