AZL-49804
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-49804.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-49804
- Upstream
- Published
- 2024-09-27T13:15:14Z
- Modified
- 2026-04-01T05:16:15.656160Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- CVE-2024-46822 affecting package kernel for versions less than 5.15.167.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
arm64: acpi: Harden getcpuforacpiid() against missing CPU entry
In a review discussion of the changes to support vCPU hotplug where a check was added on the GICC being enabled if was online, it was noted that there is need to map back to the cpu and use that to index into a cpumask. As such, a valid ID is needed.
If an MPIDR check fails in acpimapgiccpuinterface() it is possible for the entry in cpumadtgicc[cpu] == NULL. This function would then cause a NULL pointer dereference. Whilst a path to trigger this has not been established, harden this caller against the possibility.
- References