CVE-2022-49883
published 2025-05-01CVE-2022-49883: 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…
PriorityP429high7.1CVSS 3.1
AVLACLPRLUINSUCHINAH
EPSS
0.17%
7.1th percentile
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.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.0.8-1 (bookworm) | linux 6.0.8-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= b443183a25ab61840a12de92f8822849e017b9c8 < a7ebfbea0f52550d7cdf12c38f3f5eaa7b2b6494 | a7ebfbea0f52550d7cdf12c38f3f5eaa7b2b6494 |
| linux | linux | >= b443183a25ab61840a12de92f8822849e017b9c8 < 696db303e54f7352623d9f640e6c51d8fa9d5588 | 696db303e54f7352623d9f640e6c51d8fa9d5588 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.0.8-1 | 6.0.8-1 |
| linux | linux_kernel | >= 0 < 6.0.8-1 | 6.0.8-1 |
| linux | linux_kernel | >= 0 < 6.0.8-1 | 6.0.8-1 |
| linux | linux_kernel | >= 6.0 < 6.0.8 | 6.0.8 |
CVSS provenance
nvdv3.17.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
osv7.1HIGH
vendor_debian7.1HIGH
vendor_redhat7.1HIGH
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GHSA
GHSA-3x6x-q36v-32gj: 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
ghsa_unreviewed·2025-05-01
CVE-2022-49883 [HIGH] CWE-125 GHSA-3x6x-q36v-32gj: 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
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.
OSV
CVE-2022-49883: 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
osv·2025-05-01·CVSS 7.1
CVE-2022-49883 [HIGH] CVE-2022-49883: 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
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.
Red Hat
kernel: KVM: x86: smm: number of GPRs in the SMRAM image depends on the image format
vendor_redhat·2025-05-01·CVSS 7.1
CVE-2022-49883 [HIGH] kernel: KVM: x86: smm: number of GPRs in the SMRAM image depends on the image format
kernel: KVM: x86: smm: number of GPRs in the SMRAM image depends on the image format
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.
Statement: A memory corruption vulnerability exists in the KVM x86 implementation, where the wrong number of General Purpose Registers (GPRs) is accessed in the System Management Mode (SMM) save/restore logic depending on guest architecture. On 64-bit hosts running 32-bit guests without the X86_FEATURE_LM feature,
Debian
CVE-2022-49883: linux - In the Linux kernel, the following vulnerability has been resolved: KVM: x86: s...
vendor_debian·2022·CVSS 7.1
CVE-2022-49883 [HIGH] CVE-2022-49883: linux - In the Linux kernel, the following vulnerability has been resolved: KVM: x86: s...
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.
Scope: local
bookworm: resolved (fixed in 6.0.8-1)
bullseye: resolved
forky: resolved (fixed in 6.0.8-1)
sid: resolved (fixed in 6.0.8-1)
trixie: resolved (fixed in 6.0.8-1)
No detection rules found.
No public exploits indexed.
2025-05-01
Published