CVE-2026-52905
mediumpriority · track · 22EPSS 0.001 · 1 %ileDEEUUSEPSS · scored 2026-10-28
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 unaligned DAMON region address ranges. Commit c80f46ac228b ("mm/damon/core: disallow non-power of two min_region_sz") fixed it, but only for damon_commit_ctx() use case. Still, DAMON sysfs interface can emit non-power of two min_region_sz via damon_start(). Fix the path by adding the is_power_of_2() check on damon_start(). The issue was discovered by sashiko [1].
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (22)
Products and version ranges known to be affected.
- Red Hat OpenShift Container Platformall versionscert_bundDEcpe:/a:redhat:openshift:container_platform
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1870Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2026-06-09csaf · cert_bundDE
Eiin Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen oder andere, nicht näher bezeichnete Angriffe durchzuführen.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2026-52905cnnvd
- https://www.kernel.org/Patchcnnvd
- https://git.kernel.org/stable/c/1de2db19a6028abe7d905875922faef5b873de67enisa_euvd
- https://git.kernel.org/stable/c/89b6226b6c2a4add3939f361653a47c212d6ab75enisa_euvd
- https://git.kernel.org/stable/c/95093e5cb4c5b50a5b1a4b79f2942b62744bd66aenisa_euvd
- https://git.kernel.org/stable/c/1de2db19a6028abe7d905875922faef5b873de67Patchnvd
- https://git.kernel.org/stable/c/89b6226b6c2a4add3939f361653a47c212d6ab75Patchnvd
- https://git.kernel.org/stable/c/95093e5cb4c5b50a5b1a4b79f2942b62744bd66aPatchnvd
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