mm/damon/ops-common: putback folios on invalid migrate nid

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74644
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-22 16:16:37 UTC
Updated2026-08-22 16:16:37 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: mm/damon/ops-common: putback folios on invalid migrate nid damon_pa_migrate() and damos_va_migrate() isolate folios into a local list and then call damon_migrate_pages(). When target_nid is invalid (including the scheme default NUMA_NO_NODE / -1), damon_migrate_pages() returns early without putting the folios back to the LRU. Callers then discard the list head while those folios remain isolated with an extra reference taken by folio_isolate_lru(). The pages stay off the LRU for as long as the mapping exists (anon active+inactive counts drop while RSS does not), and the leftover references can pin the pages after the mapping is gone. Put the folios back on the invalid-nid path so ignored migration requests still return them to the LRU.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 7e6c3130690a01076efdf45aa02ba5d5c16849a0 460181e4bb47a57776c64f0832c2096de8878cb3 git Not specified
CNA Linux Linux affected 7e6c3130690a01076efdf45aa02ba5d5c16849a0 cfef454862b7d2776e0955b873dd59af6b47cfcb git Not specified
CNA Linux Linux affected 7e6c3130690a01076efdf45aa02ba5d5c16849a0 5deb65c34e682e7c5f5df417a70e223e8fcc5f5a git Not specified
CNA Linux Linux affected 7c303fa1f311aadc17fa82b7bbf776412adf45de git Not specified
CNA Linux Linux affected 9d0c2d15aff96746f99a7c97221bb8ce5b62db19 git Not specified
CNA Linux Linux affected 6.12.44 6.13 semver Not specified
CNA Linux Linux affected 6.16.4 6.17 semver Not specified
CNA Linux Linux affected 6.17 Not specified
CNA Linux Linux unaffected 6.17 semver Not specified
CNA Linux Linux unaffected 6.18.45 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.9 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/5deb65c34e682e7c5f5df417a70e223e8fcc5f5a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/460181e4bb47a57776c64f0832c2096de8878cb3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/cfef454862b7d2776e0955b873dd59af6b47cfcb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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