What is CVE-2026-52905?

CVE-2026-52905 is a medium-severity vulnerability in Linux, classified under Improper Validation of Specified Quantity in Input. CVSS score: 5.5/10. Published 2026-06-09.

How severe is CVE-2026-52905?

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

Vulnerability in Linux

CVE-2026-52905

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: disallow non-power of two min_region_sz on damon_start() Commit d8f867fa0825 ("mm/damon: add damon_ctx->min_sz_region") introduced a bug that allows unali…

EPSS: 0.001 (1.6th 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 d8f867fa0825fb3e358457566d7326d8aab2406a, 6.18, 0
Linux Linux_kernel

Weakness classification (CWE)

CWE-1284 — Improper Validation of Specified Quantity in Input

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-2026-52905?: CVE-2026-52905 is a medium-severity vulnerability in Linux, classified under Improper Validation of Specified Quantity in Input. CVSS score: 5.5/10. Published 2026-06-09.
How severe is CVE-2026-52905?: Medium severity. CVSS v3 base score is 5.5 out of 10.