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The KVM SEV-SNP net-hotplug integration tests (supported added in later commits) intermittently kill the VMM with SIGSYS on the http-server thread. The thread is seen reading /proc/sys/vm/overcommit_memory (openat + read). Allow the syscalls there, gated on sev_snp+kvm. seccomp can't match a path, so the open is restricted to O_RDONLY. Assisted-by: Claude:Opus-4.8 Signed-off-by: Ruben Hakobyan <hruben@meta.com>