CVE-2026-53061 Linux CVE debrief

Who should care

System administrators and users of Linux kernel versions 3.13 to 7.0.10, 6.7 to 6.12.91, and 6.13 to 6.18.33 should be aware of this vulnerability and take necessary precautions to prevent data loss or corruption. This includes applying patches, updating to a Linux kernel version outside the affected ranges, monitoring for potential data loss or corruption, and performing regular backups and data integrity checks.

Technical summary

The vulnerability is caused by the dirty mapping check for passthrough mode being performed during table creation. To fix this, the checks were moved to the preresume phase to support table preloading. The affected versions of the Linux kernel are 3.13 to 7.0.10, 6.7 to 6.12.91, and 6.13 to 6.18.33. This change ensures that the dirty mapping check is performed at the correct time, preventing dirty mappings from being loaded into passthrough mode, which can result in data loss.

Defensive priority

Medium

Recommended defensive actions

• Apply the patches provided by the Linux kernel maintainers.
• Update to a Linux kernel version outside the affected ranges.
• Monitor for potential data loss or corruption.
• Perform regular backups and data integrity checks.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The vulnerability was resolved by moving the checks to the preresume phase. The affected versions of the Linux kernel are 3.13 to 7.0.10, 6.7 to 6.12.91, and 6.13 to 6.18.33. The CVE record was published on 2026-06-24T17:17:18.880Z and last modified on 2026-07-21T17:36:06.157Z. To verify the vulnerability, defenders should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.

Official resources