VDB

DEBIAN-CVE-2024-46822

DEBIAN-CVE-2024-46822 PUBLISHED CVSS 5.5 MEDIUM

In the Linux kernel, the following vulnerability has been resolved: arm64: acpi: Harden get_cpu_for_acpi_id() 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 acpi_map_gic_cpu_interface() it is possible for the entry in cpu_madt_gicc[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.

Risk Scores

CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
Debian:13linux0, 0
Debian:11linux-6.16.1.112-1, 6.1.106-3, 6.1.106-3
Debian:11linux5.10.221-1, 5.10.197-1, 5.10.205-1
Debian:12linux6.1.99-1, 6.1.55-1, 6.1.55-1~bpo11+1
Debian:14linux0, 0

Timeline

  • Sep 27, 2024 CVE Published
  • Apr 28, 2026 CVE Updated
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