5.5

CVE-2024-46822

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.
Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 5.4.284
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.226
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.167
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.110
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.51
Linux ≫ Linux Kernel Version >= 6.7 < 6.10.10
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.01% 0.007
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.