CVE-2022-49883
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49883
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49883.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49883
- Downstream
- Published
- 2025-05-01T14:10:29Z
- Modified
- 2025-10-16T01:18:58.002017Z
- Summary
- KVM: x86: smm: number of GPRs in the SMRAM image depends on the image format
- Details
-
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 X86FEATURELM, KVM will access 16 gprs to 32-bit smram image, causing out-ouf-bound ram access.
On 32 bit host, the rsmloadstate64/entersmmsavestate_64 is compiled out, thus access overflow can't happen.
- References
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedb443183a25ab61840a12de92f8822849e017b9c8Fixeda7ebfbea0f52550d7cdf12c38f3f5eaa7b2b6494
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedb443183a25ab61840a12de92f8822849e017b9c8Fixed696db303e54f7352623d9f640e6c51d8fa9d5588