vulnerability
Red Hat: CVE-2024-36953: kernel: KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr() (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:L/Au:M/C:N/I:N/A:C) | May 30, 2024 | Sep 25, 2024 | Dec 24, 2025 |
Severity
4
CVSS
(AV:L/AC:L/Au:M/C:N/I:N/A:C)
Published
May 30, 2024
Added
Sep 25, 2024
Modified
Dec 24, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr()
vgic_v2_parse_attr() is responsible for finding the vCPU that matches
the user-provided CPUID, which (of course) may not be valid. If the ID
is invalid, kvm_get_vcpu_by_id() returns NULL, which isn't handled
gracefully.
Similar to the GICv3 uaccess flow, check that kvm_get_vcpu_by_id()
actually returns something and fail the ioctl if not.
Solutions
no-fix-redhat-rpm-packageredhat-upgrade-kernelredhat-upgrade-kernel-rt
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