Strix
57.4K

CVE-2026-74644

Unknown

Last modified

CVE-2026-74644 is a vulnerability of currently unknown severity. In 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().

Description

In 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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 7c303fa1f311aadc17fa82b7bbf776412adf45de, < 7001c0a1bc9018cd5b2b72ebebb216d738b2ec81; >= 7e6c3130690a01076efdf45aa02ba5d5c16849a0, < 460181e4bb47a57776c64f0832c2096de8878cb3; >= 7e6c3130690a01076efdf45aa02ba5d5c16849a0, < cfef454862b7d2776e0955b873dd59af6b47cfcb; >= 7e6c3130690a01076efdf45aa02ba5d5c16849a0, < 5deb65c34e682e7c5f5df417a70e223e8fcc5f5a; 9d0c2d15aff96746f99a7c97221bb8ce5b62db19; >= 6.12.44, < 6.12.105; >= 6.16.4, < 6.17
LinuxLinux6.17

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-74644?
In 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.
How severe is CVE-2026-74644?
Severity scoring for CVE-2026-74644 is pending analysis.
How do I fix CVE-2026-74644?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

View all 2026CVEs →

Are you affected by CVE-2026-74644?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST