Description
In the Linux kernel, the following vulnerability has been resolved:

powerpc/32: Fix hardlockup on vmap stack overflow

Since the commit c118c7303ad5 ("powerpc/32: Fix vmap stack - Do not
activate MMU before reading task struct") a vmap stack overflow
results in a hard lockup. This is because emergency_ctx is still
addressed with its virtual address allthough data MMU is not active
anymore at that time.

Fix it by using a physical address instead.
Published: 2024-05-24
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Thu, 18 Sep 2025 16:00:00 +0000

Type Values Removed Values Added
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:*

Fri, 20 Dec 2024 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-11T13:57:07.330Z

Reserved: 2024-05-24T15:11:00.728Z

Link: CVE-2021-47567

cve-icon Vulnrichment

Updated: 2024-08-04T05:39:59.830Z

cve-icon NVD

Status : Analyzed

Published: 2024-05-24T15:15:21.837

Modified: 2025-09-18T15:47:52.753

Link: CVE-2021-47567

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-05-24T00:00:00Z

Links: CVE-2021-47567 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-07-12T16:01:32Z

Weaknesses