CVE-2024-46822

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Source
https://cve.org/CVERecord?id=CVE-2024-46822
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-46822.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-46822
Downstream
Related
Published
2024-09-27T12:39:23.345Z
Modified
2026-03-11T07:53:01.174227196Z
Summary
arm64: acpi: Harden get_cpu_for_acpi_id() against missing CPU entry
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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46822.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0be7320a635c2e434e8b67e0e9474a85ceb421c4
Fixed
f57769ff6fa7f97f1296965f20e8a2bb3ee9fd0f
Fixed
4c3b21204abb4fa3ab310fbbb5cf7f0e85f3a1bc
Fixed
945be49f4e832a9184c313fdf8917475438a795b
Fixed
40cae0df42e5e7f7a1c0f32deed9c4027c1ba94e
Fixed
62ca6d3a905b4c40cd942f3cc645a6718f8bc7e7
Fixed
bc7fbb37e3d2df59336eadbd6a56be632e3c7df7
Fixed
2488444274c70038eb6b686cba5f1ce48ebb9cdd

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-46822.json"