PT-2023-9487 · Linux+4 · Linux Kernel+4
Published
2023-09-22
·
Updated
2026-03-14
·
CVE-2023-52484
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The vulnerability is related to a soft lockup triggered by the
arm smmu mm invalidate range function in the Linux kernel's iommu/arm-smmu-v3 component. When running an SVA case, a soft lockup can occur, causing the CPU to become stuck for an extended period. The issue is due to the function not checking the MAX TLBI OPS threshold, leading to a potential denial-of-service condition. The problem remains even after the function was renamed to arm smmu mm arch invalidate secondary tlbs since 6.6-rc1. A similar lockup was fixed on the CPU MMU side by the commit 06ff87bae8d3, but it can still occur on the SMMU side.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Improper Locking
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Related Identifiers
Affected Products
Astra Linux
Debian
Linux Kernel
Red Os
Suse