mm/huge_memory: initialise workingset state before folio split
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.
CVE-2026-80729
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-80729
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "58729c04cf1092b87aeef0bf0998c9e2e4771133",
"lessThan": "dc87b56b43c9143f2405e434cff1530c3488b571",
"versionType": "git"
},
{
"status": "affected",
"version": "58729c04cf1092b87aeef0bf0998c9e2e4771133",
"lessThan": "d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55",
"versionType": "git"
},
{
"status": "affected",
"version": "58729c04cf1092b87aeef0bf0998c9e2e4771133",
"lessThan": "aca1f2d5de17e138bc6c4859126b77e516b82541",
"versionType": "git"
}
],
"programFiles": [
"mm/huge_memory.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.15"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.15",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.56",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.9",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"mm/huge_memory.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-80729
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #16947 · Revision 1
- Added to Heist Feed
- Publisher date