CVE-2026-52905
- Source
- https://cve.org/CVERecord?id=CVE-2026-52905
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-52905.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-52905
- Downstream
- Related
- Published
- 2026-06-09T12:36:02.516Z
- Modified
- 2026-06-18T03:54:21.398130941Z
- Summary
- mm/damon/core: disallow non-power of two min_region_sz on damon_start()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
mm/damon/core: disallow non-power of two minregionsz on damon_start()
Commit d8f867fa0825 ("mm/damon: add damonctx->minszregion") introduced a bug that allows unaligned DAMON region address ranges. Commit c80f46ac228b ("mm/damon/core: disallow non-power of two minregionsz") fixed it, but only for damoncommitctx() use case. Still, DAMON sysfs interface can emit non-power of two minregionsz via damonstart(). Fix the path by adding the ispowerof2() check on damonstart().
The issue was discovered by sashiko [1].
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52905.json" }- References
-
- https://git.kernel.org/stable/c/1de2db19a6028abe7d905875922faef5b873de67
- https://git.kernel.org/stable/c/89b6226b6c2a4add3939f361653a47c212d6ab75
- https://git.kernel.org/stable/c/95093e5cb4c5b50a5b1a4b79f2942b62744bd66a
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52905.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-52905
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git