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CVE-2026-53360: KVM SEV-SNP guest-to-host heap OOB and analysis of the upstream fix
https://blog.himanshuanand.com/2026/08/i-found-a-kvm-guest-to-host-heap-corruption-bug-and-someone-else-got-there-first/

https://redd.it/1vmcn4a
@r_linux
Himanshu Anand :: Security & Other Notes I found a KVM guest-to-host heap corruption bug and someone else got there first TLDR I independently found a heap out-of-bounds read/write in KVM’s SEV-SNP Page State Change handler. A malicious guest VM can corrupt host kernel heap memory and leak its layout, across the VM boundary, as many times as it wants. I reported it to security@kernel.org…
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