mm/huge_memory: update file PMD counter before folio_put()
In the Linux kernel, the following vulnerability has been resolved: mm/huge_memory: update file PMD counter before folio_put() __split_huge_pmd_locked() updates the file/shmem RSS counter after dropping the PMD mapping's folio reference. If folio_put() drops the last reference, mm_counter_file() can later read freed folio state via folio_test_swapbacked(). Move the counter update before folio_put().
CVE-2026-53189
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-2026-53189
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": "fadae2953072e9005c5f1d64e1049edb043494dc",
"lessThan": "84b3212b166b446faea27ebebb7161405ffceef9",
"versionType": "git"
},
{
"status": "affected",
"version": "fadae2953072e9005c5f1d64e1049edb043494dc",
"lessThan": "108963978a681c0c468d279cac2b930c27672877",
"versionType": "git"
},
{
"status": "affected",
"version": "fadae2953072e9005c5f1d64e1049edb043494dc",
"lessThan": "459771c9cf30f378bdbd30fc65d17f7eb931bb59",
"versionType": "git"
},
{
"status": "affected",
"version": "fadae2953072e9005c5f1d64e1049edb043494dc",
"lessThan": "ae9d4caf6f133e884cf5fcda4982c493b35e5194",
"versionType": "git"
},
{
"status": "affected",
"version": "fadae2953072e9005c5f1d64e1049edb043494dc",
"lessThan": "6c29a8ba084e89499ca77b947e07ae817f9c16ce",
"versionType": "git"
},
{
"status": "affected",
"version": "fadae2953072e9005c5f1d64e1049edb043494dc",
"lessThan": "5f5b604e1e6bde4e889199168ee80fe8306d06ad",
"versionType": "git"
},
{
"status": "affected",
"version": "fadae2953072e9005c5f1d64e1049edb043494dc",
"lessThan": "ed5b030931292c94133437ac5e5ff580e498eabd",
"versionType": "git"
},
{
"status": "affected",
"version": "fadae2953072e9005c5f1d64e1049edb043494dc",
"lessThan": "8d878059924f12c1bc24556a92ec56add74de3c8",
"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": "4.19"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.19",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.259",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.210",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.176",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.143",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.94",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.36",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.13",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"mm/huge_memory.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-53189
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #40771 · Revision 1
- Added to Heist Feed
- Publisher date