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linux-hwe-edge

linux-aws-5.0

linux-aws-5.3

linux-azure

linux-azure-5.3

linux-azure-edge

linux-gcp

linux-gcp-5.3

linux-gke-4.15

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linux-lowlatency-hwe-5.19

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linux-bluefield

A race condition vulnerability in the Linux kernel's User-Mode Linux (UML) TLB synchronization mechanism has been fixed. The issue involved improper locking during page table traversal and modification, which could lead to inconsistent states. This vulnerability affects multiple Linux kernel versions prior to 7.0.0-28.28 and related builds. The flaw has been addressed in updated kernel packages released by Ubuntu. The vulnerability has a CVSS score of 7.8, indicating a high impact on confidentiality, integrity, and availability. Users are advised to update to the fixed kernel versions and reboot their systems to apply the patches.

CVE-2026-53020 is a vulnerability in the Linux kernel's User-Mode Linux (UML) subsystem related to a potential race condition during Translation Lookaside Buffer (TLB) synchronization. The flaw arises because the page table lock was not properly held while traversing and modifying the page table, risking inconsistent memory states. This issue was resolved by disabling the split page table lock to simplify synchronization. The vulnerability affects multiple Linux kernel versions prior to 7.0.0-28.28 and related package versions. Ubuntu has released patched kernel versions to address this issue, requiring users to update and reboot. The CVSS 3.1 score is 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating local attack vector, low attack complexity, low privileges required, no user interaction, unchanged scope, and high impact on confidentiality, integrity, and availability.

Detailed information about UBUNTU-CVE-2026-53020 affecting null linux-hwe-edge. Get real-time updates, technical details, and mitigation strategies.

UBUNTU-CVE-2026-53020 - Live Threat Intelligence - Threat Radar | OffSeq.com

Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: um: Fix potential race condition in TLB sync During the TLB sync, we need to… (CVE-2026-53020)

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