CVE-2024-36953
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMay 30, 2024
First seenMay 30, 2024
How to fix
Update
- linux linux_kernel5.10.217, 5.15.159, 6.1.91, 6.6.31, 6.8.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.7 ≤ v < 5.10.217, 5.11 ≤ v < 5.15.159, 5.16 ≤ v < 6.1.91, 6.2 ≤ v < 6.6.31, 6.7 ≤ v < 6.8.10, 6.9 | 5.10.217, 5.15.159, 6.1.91, 6.6.31, 6.8.10 |
| debian debian_linux | 10.0 | — |
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