5.5

CVE-2024-46822: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-46822DEBIAN-CVE-2024-46822
Published 27-09-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2024-46822 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15.4% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.25%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 32 · Related 28
DLA-3912-1DLA-4008-1DSA-5782-1RHSA-2025:6966SUSE-SU-2024:3551-1SUSE-SU-2024:3553-1

Timeline

  1. 27-09-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

0.00 pp

From 0.25% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.25%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu130 products
  • linuxAll versions (No fix recorded) | < 5.4.0-200.220 | < 5.15.0-125.135 | < 6.8.0-50.51
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1135.145 | < 5.15.0-1072.78 | < 6.8.0-1020.22
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 0be7320a635c2e434e8b67e0e9474a85ceb421c4, < f57769ff6fa7f97f1296965f20e8a2bb3ee9fd0f | ≥ 0be7320a635c2e434e8b67e0e9474a85ceb421c4, < 4c3b21204abb4fa3ab310fbbb5cf7f0e85f3a1bc | ≥ 0be7320a635c2e434e8b67e0e9474a85ceb421c4, < 945be49f4e832a9184c313fdf8917475438a795b | ≥ 0be7320a635c2e434e8b67e0e9474a85ceb421c4, < 40cae0df42e5e7f7a1c0f32deed9c4027c1ba94e | ≥ 0be7320a635c2e434e8b67e0e9474a85ceb421c4, < 62ca6d3a905b4c40cd942f3cc645a6718f8bc7e7 | ≥ 0be7320a635c2e434e8b67e0e9474a85ceb421c4, < bc7fbb37e3d2df59336eadbd6a56be632e3c7df7 | ≥ 0be7320a635c2e434e8b67e0e9474a85ceb421c4, < 2488444274c70038eb6b686cba5f1ce48ebb9cdd | 3.7
  • linux_kernel< 5.4.284 | ≥ 5.5, < 5.10.226 | ≥ 5.11, < 5.15.167 | ≥ 5.16, < 6.1.110 | ≥ 6.2, < 6.6.51 | ≥ 6.7, < 6.10.10
Debian1 product
  • linux< 6.1.112-1 | < 6.10.11-1

3 vendors · 133 products

References

30 links
Show all 30 references