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Medium severity5.5NVD Advisory· Published Apr 3, 2025· Updated Jun 17, 2026

CVE-2025-22000

CVE-2025-22000

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.

Affected products

11
  • Linux/Kernelcpe-rescue10 versions
    6.9+ 9 more
    • (no CPE)range: 6.9
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.9,<6.12.21
    • cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.14:rc6:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.14:rc7:*:*:*:*:*:*
    • (no CPE)
  • osv-coords
    pkg:linux/kernel
    Range: >= 6.9.0, < 6.12.21

Patches

Vulnerability mechanics

References

3

News mentions

0

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