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CVE-2022-49883

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CVE-2022-49883

Published: May 1, 2025

Modified: May 11, 2026

PUBLISHED

Description

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.

VendorProductVersions

Linux

Linux

affected
b443183a25ab61840a12de92f8822849e017b9c8 - < a7ebfbea0f52550d7cdf12c38f3f5eaa7b2b6494
affected
b443183a25ab61840a12de92f8822849e017b9c8 - < 696db303e54f7352623d9f640e6c51d8fa9d5588

Linux

Linux

affected
6.0
unaffected
0 - < 6.0
unaffected
6.0.8 - <= 6.0.*
unaffected
6.1 - <= *

References

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