🔐 CVE Alert

CVE-2024-46822

UNKNOWN 0.0

arm64: acpi: Harden get_cpu_for_acpi_id() against missing CPU entry

CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th

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.

Vendor linux
Product linux
Ecosystems
Industries
Technology
Published Sep 27, 2024
Last Updated May 11, 2026
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Affected Versions

Linux / Linux
0be7320a635c2e434e8b67e0e9474a85ceb421c4 < f57769ff6fa7f97f1296965f20e8a2bb3ee9fd0f 0be7320a635c2e434e8b67e0e9474a85ceb421c4 < 4c3b21204abb4fa3ab310fbbb5cf7f0e85f3a1bc 0be7320a635c2e434e8b67e0e9474a85ceb421c4 < 945be49f4e832a9184c313fdf8917475438a795b 0be7320a635c2e434e8b67e0e9474a85ceb421c4 < 40cae0df42e5e7f7a1c0f32deed9c4027c1ba94e 0be7320a635c2e434e8b67e0e9474a85ceb421c4 < 62ca6d3a905b4c40cd942f3cc645a6718f8bc7e7 0be7320a635c2e434e8b67e0e9474a85ceb421c4 < bc7fbb37e3d2df59336eadbd6a56be632e3c7df7 0be7320a635c2e434e8b67e0e9474a85ceb421c4 < 2488444274c70038eb6b686cba5f1ce48ebb9cdd
Linux / Linux
3.7

References

NVD ↗ CVE.org ↗ EPSS Data ↗
git.kernel.org: https://git.kernel.org/stable/c/f57769ff6fa7f97f1296965f20e8a2bb3ee9fd0f git.kernel.org: https://git.kernel.org/stable/c/4c3b21204abb4fa3ab310fbbb5cf7f0e85f3a1bc git.kernel.org: https://git.kernel.org/stable/c/945be49f4e832a9184c313fdf8917475438a795b git.kernel.org: https://git.kernel.org/stable/c/40cae0df42e5e7f7a1c0f32deed9c4027c1ba94e git.kernel.org: https://git.kernel.org/stable/c/62ca6d3a905b4c40cd942f3cc645a6718f8bc7e7 git.kernel.org: https://git.kernel.org/stable/c/bc7fbb37e3d2df59336eadbd6a56be632e3c7df7 git.kernel.org: https://git.kernel.org/stable/c/2488444274c70038eb6b686cba5f1ce48ebb9cdd lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html