CVE-2025-22000 - Linux Kernel Memory Leak in Huge Memory Folios

CVE-2025-22000 - Linux Kernel Memory Leak in Huge Memory Folios

https://cvefeed.io/rssfeed/latest.atom / Thu, 04/03/2025 - 11:33
CVE ID : CVE-2025-22000
Published : April 3, 2025, 8:15 a.m. | 1 hour, 6 minutes 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.
Severity: 0.0 | NA
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