Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-64358

CVE-2026-64358MEDIUM

Linux Linux — media: mtk-jpeg: cancel workqueue on release for supported platforms only

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0012    1.8     —

AFFECTED
  Product  Versions                                    Fixed
  Linux    2209fdae5c2f615930c9af1379c1cfca199ec5d8 –  —
  Linux    7.1 –                                       6.6.145

TIMELINE
  Jul 19  Reserved by Linux
  Jul 25  Published (CNA: Linux)
  Sep 4   ENRICHED — CVE-2026-64358 (Linux). Received CVSS 5.5 and CPE data from NVD.

CWE-476 · CNA: Linux · CVSS v3.1 · 5 references · NVD status: Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: media: mtk-jpeg: cancel workqueue on release for supported platforms only Since a recent fix the mtk_jpeg_release function cancels any pending or running work present in the driver workqueue using cancel_work_sync function. Currently, only the multicore based variants use this workqueue and they have the jpeg_worker platform data field initialized with a workqueue callback function. For the others, this field value remain NULL by default. The cancel_work_sync function is unconditionally called in mtk_jpeg_release function, even for the variants that do not use the workqueue. This call generates a WARN_ON print in __flush_work because the workqueue callback function presence check fails in __flush_work function (used by cancel_work_sync). So, to avoid these warnings, call cancel_work_sync only if a workqueue callback is defined in platform data.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
July 19, 2026	Reserved	Reserved by Linux
July 25, 2026	Published	Published (CNA: Linux)
September 4, 2026	ENRICHED	ENRICHED — CVE-2026-64358 (Linux). Received CVSS 5.5 and CPE data from NVD.

Affected

Affected products and packages — 2 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Linux	Linux	—	2209fdae5c2f615930c9af1379c1cfca199ec5d8	—
Linux	Linux	—	7.1	6.6.145

Weaknesses

CWE-476

References (5)

Authoritative record: CVE-2026-64358 at cve.org

Vendors: linux

Weaknesses: CWE-476

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-64358 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 Sunday, October 4, 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.