Re: [libvirt] [PATCH] qemu: Fix the crash in qemuDomainBlockCopyCommon

The crash caused when checking the backing file path of a disk while the disk has no backing file, add a check before using disk->src->backingStore->path Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1215569 --- src/qemu/qemu_driver.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 70bf7aa..175d00b 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -16816,6 +16816,15 @@ qemuDomainBlockCopyCommon(virDomainObjPtr vm, goto endjob; if ((flags & VIR_DOMAIN_BLOCK_COPY_SHALLOW) && + !disk->src->backingStore) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("disk '%s' has no backing file, so shallow copy " + "is not possible"),

+ disk->src->path); + goto endjob; + } + + if ((flags & VIR_DOMAIN_BLOCK_COPY_SHALLOW) && mirror->format == VIR_STORAGE_FILE_RAW && disk->src->backingStore->path) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED,