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CVE-2022-49883

KVM: x86: smm: number of GPRs in the SMRAM image depends on the image format

3Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackepss 0.2%
probabilidade de exploração
0.2%top 94% das CVEs
exploração observada
nãonenhuma fonte reporta
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: smm: number of GPRs in the SMRAM image depends on the image format On 64 bit host, if the guest doesn't have X86_FEATURE_LM, KVM will access 16 gprs to 32-bit smram image, causing out-ouf-bound ram access. On 32 bit host, the rsm_load_state_64/enter_smm_save_state_64 is compiled out, thus access overflow can't happen.
Produtos afetados
Linux · Linux