kernelCTF: server: update to latest version

Author: koczkatamas

kernelctf/server/qemu.sh

@@ -13,6 +13,8 @@ RELEASE=$(basename "$RELEASE_PATH")
 HARDENING=""
 if [[ "$RELEASE" == "mitigation-"* ]]; then
   HARDENING="sysctl.kernel.dmesg_restrict=1 sysctl.kernel.kptr_restrict=2 sysctl.kernel.unprivileged_bpf_disabled=2 sysctl.net.core.bpf_jit_harden=1 sysctl.kernel.yama.ptrace_scope=1 slab_virtual=1 slab_virtual_guards=1";
+elif [[ $(date +%Y-%m-%d) > "2025-02-28" ]]; then
+  HARDENING="net.core.bpf_jit_harden=2"
 fi
 
 IO_URING="sysctl.kernel.io_uring_disabled=2"

kernelctf/server/releases.yaml

@@ -1,3 +1,17 @@
+lts-6.6.75:
+  release-date: 2025-02-07T12:00:00Z
+cos-105-17412.535.34:
+  release-date: 2025-02-07T12:00:00Z
+cos-109-17800.436.14:
+  release-date: 2025-02-07T12:00:00Z
+
+lts-6.6.71:
+  release-date: 2025-01-24T12:00:00Z
+cos-105-17412.535.6:
+  release-date: 2025-01-24T12:00:00Z
+cos-109-17800.372.99:
+  release-date: 2025-01-24T12:00:00Z
+
 lts-6.6.69:
   release-date: 2025-01-10T12:00:00Z
 cos-105-17412.495.75: