In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3 On a system with a GICv3, if a guest hasn't been configured with GICv3 and that the host is not capable of GICv2 emulation, a write to any of the ICC_*SGI*_EL1 registers is trapped to EL2. We therefore try to emulate the SGI access, only to hit a NULL pointer as no private interrupt is allocated (no GIC, remember?). The obvious fix is to give the guest what it deserves, in the shape of a UNDEF exception.
History

Sat, 16 Nov 2024 02:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416

Sun, 29 Sep 2024 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 19 Sep 2024 13:45:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Weaknesses CWE-476
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel

Fri, 13 Sep 2024 23:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low


Fri, 13 Sep 2024 06:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3 On a system with a GICv3, if a guest hasn't been configured with GICv3 and that the host is not capable of GICv2 emulation, a write to any of the ICC_*SGI*_EL1 registers is trapped to EL2. We therefore try to emulate the SGI access, only to hit a NULL pointer as no private interrupt is allocated (no GIC, remember?). The obvious fix is to give the guest what it deserves, in the shape of a UNDEF exception.
Title KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-09-13T06:27:33.709Z

Updated: 2024-12-19T09:21:24.022Z

Reserved: 2024-09-11T15:12:18.252Z

Link: CVE-2024-46707

cve-icon Vulnrichment

Updated: 2024-09-29T15:02:36.679Z

cve-icon NVD

Status : Analyzed

Published: 2024-09-13T07:15:05.643

Modified: 2024-09-19T13:29:46.757

Link: CVE-2024-46707

cve-icon Redhat

Severity : Low

Publid Date: 2024-09-13T00:00:00Z

Links: CVE-2024-46707 - Bugzilla