diff --git a/util/github-runners-vagrant/Vagrantfile-builder b/util/github-runners-vagrant/Vagrantfile-builder
index 242e094d19..cd36e7894c 100644
--- a/util/github-runners-vagrant/Vagrantfile-builder
+++ b/util/github-runners-vagrant/Vagrantfile-builder
@@ -22,6 +22,11 @@ Vagrant.configure("2") do |config|
   config.vm.provision :shell, privileged: false, path: "provision_nonroot.sh"
   # The provision_root.sh adds the vagrant user to the docker group, so we need to reload the VM.
   config.vm.provision :reload
+  config.vm.provision :shell, run: 'always', inline: <<-SHELL
+    # When running gem5 in SE mode we must overcommit memory.
+    # This is run on every startup of the VM.
+    /sbin/sysctl vm.overcommit_memory=1
+  SHELL
   config.vm.provision :shell, privileged: false, run: 'always', inline: <<-SHELL
     if [ -d ~/actions-runner ]; then
         # This will be run everytime the VM is run (once created).
diff --git a/util/github-runners-vagrant/Vagrantfile-runner b/util/github-runners-vagrant/Vagrantfile-runner
index ab601cd9c8..854e5f58b1 100644
--- a/util/github-runners-vagrant/Vagrantfile-runner
+++ b/util/github-runners-vagrant/Vagrantfile-runner
@@ -22,6 +22,11 @@ Vagrant.configure("2") do |config|
   config.vm.provision :shell, privileged: false, path: "provision_nonroot.sh"
   # The provision_root.sh adds the vagrant user to the docker group, so we need to reload the VM.
   config.vm.provision :reload
+  config.vm.provision :shell, run: 'always', inline: <<-SHELL
+    # When running gem5 in SE mode we must overcommit memory.
+    # This is run on every startup of the VM.
+    /sbin/sysctl vm.overcommit_memory=1
+  SHELL
   config.vm.provision :shell, privileged: false, run: 'always', inline: <<-SHELL
     if [ -d ~/actions-runner ]; then
         # This will be run everytime the VM is run (once created).