Vulnerability 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.
References
- https://git.kernel.org/stable/c/aca1f2d5de17e138bc6c4859126b77e516b82541
- https://git.kernel.org/stable/c/d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55
FAQ
What is CVE-2026-80729?
CVE-2026-80729 is a documented vulnerability. 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 __f...
How severe is CVE-2026-80729?
CVSS scoring is not yet available for CVE-2026-80729. Check NVD for updates.
Is there a patch for CVE-2026-80729?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.