Re: [libvirt] [PATCH] lxc: don't try to resolve a NULL path for filesystems

<filesystem type='ram' accessmode='passthrough'> <source usage='524288' units='KiB'/> <target dir='/dev/shm'/> </filesystem> would lead to lxcContainerResolveSymlinks calling access(NULL) because it failed to check if fs->src->path was non-NULL. This is a regression caused by commit da665fbd4858890fbb3bbf5da2a7b6ca37bb3220 Author: Olga Krishtal <okrishtal(a)virtuozzo.com&gt; Date: Thu Jul 14 16:52:38 2016 +0300 filesystem: adds possibility to use storage pool as fs source Signed-off-by: Olga Krishtal <okrishtal(a)virtuozzo.com&gt; Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com&gt; --- src/lxc/lxc_container.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c index 124b441..e1eb434 100644 --- a/src/lxc/lxc_container.c +++ b/src/lxc/lxc_container.c @@ -616,7 +616,7 @@ static int lxcContainerResolveSymlinks(virDomainFSDefPtr fs, bool gentle) { char *newroot; - if (!fs->src || fs->symlinksResolved) + if (!fs->src || !fs->src->path || fs->symlinksResolved) return 0; if (access(fs->src->path, F_OK)) {