---
cve: "CVE-2026-80729"
severity: "LOW"
cvss: 3.1
epss: "5.8%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-09-03 13:06:11"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T17:02:31+02:00"
---

# CVE-2026-80729

> 3.1 LOW

## Beschreibung

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.

## Patch verfügbar (OSV)

- Kernel ≥ 7.1.9

## Referenzen

- <https://git.kernel.org/stable/c/aca1f2d5de17e138bc6c4859126b77e516b82541>
- <https://git.kernel.org/stable/c/d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-80729) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_