8dfb12cb77
The refactor of 'udevListInterfacesByStatus()' which attempted to make it usable as backend for 'udevNumOfInterfacesByStatus()' neglected to consider the corner case of 'g_new0(..., 0)' returning NULL if the user actually requests 0 elements. As the code was modified to report the full number of interfaces in the system when the list of names is NULL, the RPC code would be asked to serialize a NULL-list of interface names with declared lenth of 1+ causing a crash. To fix this corner case we make callers pass '-1' as @names_len (it's conveniently an 'int' due to RPC type usage) if they don't wish to fetch the actual list and convert all decisions to be done on @names_len being non-negative instead of @names being non-NULL. CVE-2024-8235 Fixes: bc596f275129bc11b2c4bcf737d380c9e8aeb72d Resolves: https://issues.redhat.com/browse/RHEL-55373 Reported-by: Yanqiu Zhang <yanqzhan@redhat.com> Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Libvirt API for virtualization
Libvirt provides a portable, long term stable C API for managing the virtualization technologies provided by many operating systems. It includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER Hypervisor.
For some of these hypervisors, it provides a stateful management daemon which runs on the virtualization host allowing access to the API both by non-privileged local users and remote users.
Layered packages provide bindings of the libvirt C API into other languages including Python, Perl, PHP, Go, Java, OCaml, as well as mappings into object systems such as GObject, CIM and SNMP.
Further information about the libvirt project can be found on the website:
License
The libvirt C API is distributed under the terms of GNU Lesser General Public License, version 2.1 (or later). Some parts of the code that are not part of the C library may have the more restrictive GNU General Public License, version 2.0 (or later). See the files COPYING.LESSER and COPYING for full license terms & conditions.
Installation
Instructions on building and installing libvirt can be found on the website:
https://libvirt.org/compiling.html
Contributing
The libvirt project welcomes contributions in many ways. For most components the best way to contribute is to send patches to the primary development mailing list. Further guidance on this can be found on the website:
https://libvirt.org/contribute.html
Contact
The libvirt project has two primary mailing lists:
- users@lists.libvirt.org (for user discussions)
- devel@lists.libvirt.org (for development only)
Further details on contacting the project are available on the website: