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Microsoft Security Response CenterCVE-2026-46321

tun: free page on short-frame rejection in tun_xdp_one()

MediumVendor CVSS 5.5 / 10 1 CVE Published Jun 10, 2026 at 1:05 AM UTC

Summary

Mariner

Products covered

  • azl3 kernel 6.6.139.1-1 on Azure Linux 3.0

  • azl3 kernel 6.6.141.1-1 on Azure Linux 3.0

Remediation

CBL-Mariner Releases

Vendor-listed fixes

  • 6.6.143.1-1

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.