CVE-2026-74644: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: 7c303fa1f311aadc17fa82b7bbf776412adf45de преди 7001c0a1bc9018cd5b2b72ebebb216d738b2ec81; 7e6c3130690a01076efdf45aa02ba5d5c16849a0 преди 460181e4bb47a57776c64f0832c2096de8878cb3; 7e6c3130690a01076efdf45aa02ba5d5c16849a0 преди cfef454862b7d2776e0955b873dd59af6b47cfcb; 7e6c3130690a01076efdf45aa02ba5d5c16849a0 преди 5deb65c34e682e7c5f5df417a70e223e8fcc5f5a; 9d0c2d15aff96746f99a7c97221bb8ce5b62db19; 6.12.44 преди 6.12.105; 6.16.4 преди 6.17
• Linux Linux: 6.17; преди 6.17; 6.12.105 до 6.12.*; 6.18.45 до 6.18.*; 7.1.9 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-74644
• https://nvd.nist.gov/vuln/detail/CVE-2026-74644
• https://git.kernel.org/stable/c/7001c0a1bc9018cd5b2b72ebebb216d738b2ec81
• https://git.kernel.org/stable/c/460181e4bb47a57776c64f0832c2096de8878cb3
• https://git.kernel.org/stable/c/cfef454862b7d2776e0955b873dd59af6b47cfcb
• https://git.kernel.org/stable/c/5deb65c34e682e7c5f5df417a70e223e8fcc5f5a