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| author | Raphael Norwitz | 2022-01-17 05:12:34 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin | 2022-02-04 15:07:43 +0100 |
| commit | b906a23c33673f790a67dbd631a244387be77cb5 (patch) | |
| tree | 0b3feab2ee662b87eee242065d4c26bc43a79d45 /scripts/clean-includes | |
| parent | libvhost-user: fix VHOST_USER_REM_MEM_REG not closing the fd (diff) | |
| download | qemu-b906a23c33673f790a67dbd631a244387be77cb5.tar.gz qemu-b906a23c33673f790a67dbd631a244387be77cb5.tar.xz qemu-b906a23c33673f790a67dbd631a244387be77cb5.zip | |
libvhost-user: prevent over-running max RAM slots
When VHOST_USER_PROTOCOL_F_CONFIGURE_MEM_SLOTS support was added to
libvhost-user, no guardrails were added to protect against QEMU
attempting to hot-add too many RAM slots to a VM with a libvhost-user
based backed attached.
This change adds the missing error handling by introducing a check on
the number of RAM slots the device has available before proceeding to
process the VHOST_USER_ADD_MEM_REG message.
Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <20220117041050.19718-6-raphael.norwitz@nutanix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Diffstat (limited to 'scripts/clean-includes')
0 files changed, 0 insertions, 0 deletions