boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-64290MEDIUM
Linux Linux — iommufd: Break the loop on failure in iommufd_fault_fops_read()
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0015    5.2     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    07838f7fd529c8a6de44b601d4b7057e6c8d36ed –  —
  Linux    6.11 –                                      6.12.101
TIMELINE
  Jul 19  Reserved by Linux
  Jul 25  Published (CNA: Linux)
  Aug 17  ENRICHED — CVE-2026-64290 (Linux). Received CVSS 5.5 and CPE data from NVD.
CWE-835 · CNA: Linux · CVSS v3.1 · 4 references · NVD status: Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: iommufd: Break the loop on failure in iommufd_fault_fops_read() On a copy_to_user() failure inside the inner list_for_each_entry, only the inner loop breaks; the outer while re-fetches the just-restored fault group and retries the failing copy_to_user() forever, spinning the reader at 100% CPU with fault->mutex held. Check rc after the inner loop and break the outer while as well.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
July 19, 2026ReservedReserved by Linux
July 25, 2026PublishedPublished (CNA: Linux)
August 17, 2026ENRICHEDENRICHED — CVE-2026-64290 (Linux). Received CVSS 5.5 and CPE data from NVD.

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinux07838f7fd529c8a6de44b601d4b7057e6c8d36ed
LinuxLinux6.116.12.101

Weaknesses

CWE-835

References (4)

Related

Authoritative record: CVE-2026-64290 at cve.org

Vendors: linux

Weaknesses: CWE-835

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-64290 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.