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Microsoft Security Response CenterCVE-2026-23259

io_uring/rw: free potentially allocated iovec on cache put failure

MediumVendor CVSS 5.5 / 10 1 CVE Published Mar 20, 2026 at 1:01 AM UTC

Summary

Mariner

Products covered

  • azl3 kernel 6.6.126.1-1 on Azure Linux 3.0

Remediation

Release Notes CBL-Mariner Releases

Vendor-listed fixes

  • 6.6.129.1-1

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.