CVE & CISA-KEV Catalog

CVE-2022-48793

MEDIUM

5.5

CVSS v3

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: nSVM: fix potential NULL derefernce on nested migration Turns out that due to review feedback and/or rebases I accidentally moved the call to nested_svm_load_cr3 to be too early, before the NPT is enabled, which is very wrong to do. KVM can't even access guest memory at that point as nested NPT is needed for that, and of course it won't initialize the walk_mmu, which is main issue the patch was addressing. Fix this for real.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

linuxDebian

Fixed in:5.16.11-1CVE-2022-48793

Fixed in:5.16.11-1CVE-2022-48793

Fixed in:5.16.11-1CVE-2022-48793

bpftoolRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

bpftoolRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

bpftool-debuginfoRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

bpftool-debuginfoRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernelRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernelRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-abi-stablelistsRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-abi-stablelistsRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-coreRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-coreRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debugRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debugRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debug-coreRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debug-coreRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debug-debuginfoRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debug-debuginfoRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debug-develRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debug-develRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debug-modulesRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debug-modulesRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debug-modules-extraRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debug-modules-extraRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debuginfoRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debuginfoRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debuginfo-common-aarch64Red Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debuginfo-common-aarch64Rocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debuginfo-common-ppc64leRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debuginfo-common-ppc64leRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debuginfo-common-s390xRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debuginfo-common-s390xRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debuginfo-common-x86_64Rocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-debuginfo-common-x86_64Red Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-develRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-develRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-docRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-docRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-modulesRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-modulesRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-modules-extraRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-modules-extraRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-toolsRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-toolsRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-tools-debuginfoRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-tools-debuginfoRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-tools-libsRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-tools-libsRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-zfcpdumpRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-zfcpdumpRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-zfcpdump-coreRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-zfcpdump-coreRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-zfcpdump-debuginfoRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-zfcpdump-debuginfoRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-zfcpdump-develRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-zfcpdump-develRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-zfcpdump-modulesRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-zfcpdump-modulesRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-zfcpdump-modules-extraRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

kernel-zfcpdump-modules-extraRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

perfRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

perfRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

perf-debuginfoRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

perf-debuginfoRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

python3-perfRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

python3-perfRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

python3-perf-debuginfoRed Hat / RHEL

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

python3-perf-debuginfoRocky

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Fixed in:0:4.18.0-372.119.1.el8_6RHSA-2024:5692

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.24%probability of exploitation in 30 days

15thpercentile

Low risk: more likely to be exploited than 15% of all known CVEs.

References

Patch3

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	92%	-	Fix
CVE-2023-21547	High	7.5	88%	-	Fix
CVE-2014-3470	Medium	4.3	86%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.