What is CVE-2026-46279?

CVE-2026-46279 is a high-severity vulnerability in Linux, classified under Double Free. CVSS score: 7.8/10. Published 2026-06-08.

How severe is CVE-2026-46279?

High severity. CVSS v3 base score is 7.8 out of 10.

Double Free in Linux

CVE-2026-46279

In the Linux kernel, the following vulnerability has been resolved: mm/alloc_tag: clear codetag for pages allocated before page_ext initialization Due to initialization ordering, page_ext is allocated and initialized relatively late duri…

Vulnerability class: Double Free

EPSS: 0.001 (2.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions dcfe378c81f72f146890ce1dcfdcc742d3b66924, 6.10, 0
Linux Linux_kernel

Weakness classification (CWE)

CWE-415 — Double Free

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-46279?: CVE-2026-46279 is a high-severity vulnerability in Linux, classified under Double Free. CVSS score: 7.8/10. Published 2026-06-08.
How severe is CVE-2026-46279?: High severity. CVSS v3 base score is 7.8 out of 10.