CVE-2025-22000
MEDIUM EPSS 5.8%
Published Apr 3, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Published Apr 3, 2025 1y ago
Last Modified Jun 17, 2026 1w ago
Description
In the Linux kernel, the following vulnerability has been resolved: mm/huge_memory: drop beyond-EOF folios with the right number of refs When an after-split folio is large and needs to be dropped due to EOF, folio_put_refs(folio, folio_nr_pages(folio)) should be used to drop all page cache refs. Otherwise, the folio will not be freed, causing memory leak. This leak would happen on a filesystem with blocksize > page_size and a truncate is performed, where the blocksize makes folios split to >0 order ones, causing truncated folios not being freed.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
5.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-401
Affected Products 9
References 3
- git.kernel.org https://git.kernel.org/stable/c/14efb4793519d73fb2902bb0ece319b886e4b4b9
- git.kernel.org https://git.kernel.org/stable/c/86368616a9ce51f6b41efa251b6e066893851d67
- git.kernel.org https://git.kernel.org/stable/c/92ad820a1f2d95d5a8d6c2bd3f391bbb068a5f9e
Remediation
- git.kernel.org https://git.kernel.org/stable/c/14efb4793519d73fb2902bb0ece319b886e4b4b9
- git.kernel.org https://git.kernel.org/stable/c/86368616a9ce51f6b41efa251b6e066893851d67
- git.kernel.org https://git.kernel.org/stable/c/92ad820a1f2d95d5a8d6c2bd3f391bbb068a5f9e