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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-80729

mm/huge_memory: initialise workingset state before folio split

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: mm/huge_memory: initialise workingset state before folio split xas_try_split() adds __GFP_ACCOUNT for page-cache xa_nodes, but __folio_split() leaves the xa_state's xa_lru unset. That lets a live, memcg-charged xa_node exist without being linked into the mapping's shadow_nodes list_lru; when reclaim later walks the list_lru it trips VM_WARN_ON(!css_is_dying()). Use mapping_set_update() to install both the workingset update callback and the shadow_nodes list_lru on the xa_state.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 58729c04cf1092b87aeef0bf0998c9e2e4771133 to < dc87b56b43c9143f2405e434cff1530c3488b571affected
  • 58729c04cf1092b87aeef0bf0998c9e2e4771133 to < d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55affected
  • 58729c04cf1092b87aeef0bf0998c9e2e4771133 to < aca1f2d5de17e138bc6c4859126b77e516b82541affected

Linux Linux

Default version status: affected

  • 6.15affected
  • 0 to < 6.15unaffected
  • 6.18.56 to ≤ 6.18.*unaffected
  • 7.1.9 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References