In the Linux kernel, the following vulnerability has been resolved: riscv/purgatory: align riscv_kernel_entry When alignment handling is delegated to the kernel, everything must be word-aligned in purgatory, since the trap handler is then set to the kexec one. Without the alignment, hitting the exception would ultimately crash. On other occasions, the kernel's handler would take care of exceptions. This has been tested on a JH7110 SoC with oreboot and its SBI delegating unaligned access exceptions and the kernel configured to handle them.
History

Thu, 14 Nov 2024 16:00:00 +0000


Thu, 19 Sep 2024 23:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low


Wed, 11 Sep 2024 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Wed, 21 Aug 2024 23:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Wed, 21 Aug 2024 00:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: riscv/purgatory: align riscv_kernel_entry When alignment handling is delegated to the kernel, everything must be word-aligned in purgatory, since the trap handler is then set to the kexec one. Without the alignment, hitting the exception would ultimately crash. On other occasions, the kernel's handler would take care of exceptions. This has been tested on a JH7110 SoC with oreboot and its SBI delegating unaligned access exceptions and the kernel configured to handle them.
Title riscv/purgatory: align riscv_kernel_entry
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-08-20T23:50:51.464Z

Updated: 2024-11-14T15:45:12.573Z

Reserved: 2024-08-17T09:11:59.280Z

Link: CVE-2024-43868

cve-icon Vulnrichment

Updated: 2024-09-11T12:42:22.729Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-08-21T00:15:05.150

Modified: 2024-11-14T16:15:19.803

Link: CVE-2024-43868

cve-icon Redhat

Severity : Low

Publid Date: 2024-08-20T00:00:00Z

Links: CVE-2024-43868 - Bugzilla