What is CVE-2026-45888?

CVE-2026-45888 is a medium-severity vulnerability in Linux, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.5/10. Published 2026-05-27.

How severe is CVE-2026-45888?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux

CVE-2026-45888

In the Linux kernel, the following vulnerability has been resolved: md/raid1: fix memory leak in raid1_run() raid1_run() calls setup_conf() which registers a thread via md_register_thread(). If raid1_set_limits() fails, the previously re…

EPSS: 0.002 (5.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions 97894f7d3c2966164516a8a5109674763d3a55e1, 6.9, 0
Linux Linux_kernel

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

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

Frequently asked questions

What is CVE-2026-45888?: CVE-2026-45888 is a medium-severity vulnerability in Linux, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.5/10. Published 2026-05-27.
How severe is CVE-2026-45888?: Medium severity. CVSS v3 base score is 5.5 out of 10.