nvdimm: pmem: keep PREFLUSH before data writes
In the Linux kernel, the following vulnerability has been resolved: nvdimm: pmem: keep PREFLUSH before data writes pmem_submit_bio() records a REQ_PREFLUSH error, but continues to copy the bio data and can later overwrite the error with a successful REQ_FUA flush. That lets data writes run after a failed preflush and can complete the bio successfully despite the failed ordering barrier. Run the REQ_PREFLUSH flush synchronously before touching the bio data and complete the bio with the flush error if it fails. Keep asynchronous flush chaining for REQ_FUA. At that point, data copy has completed and the parent bio can wait for the chained flush bio.
CVE-2026-98161
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-2026-98161
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": "c5d4355d10d414a96ca870b731756b89d068d57a",
"lessThan": "22d1f4dcdc9c6d0295c6db0c8933126098b14e05",
"versionType": "git"
},
{
"status": "affected",
"version": "c5d4355d10d414a96ca870b731756b89d068d57a",
"lessThan": "d34c30bc994328d9cf6749b2e9a32aabd08fd076",
"versionType": "git"
},
{
"status": "affected",
"version": "c5d4355d10d414a96ca870b731756b89d068d57a",
"lessThan": "770a90c2127220f0fc194ce909ad4f0842e141cb",
"versionType": "git"
},
{
"status": "affected",
"version": "c5d4355d10d414a96ca870b731756b89d068d57a",
"lessThan": "72561ca1ab96f0f0f32737a6171641e05a318538",
"versionType": "git"
},
{
"status": "affected",
"version": "c5d4355d10d414a96ca870b731756b89d068d57a",
"lessThan": "c644a2f8fef5618fcf453c591177700fd07dd024",
"versionType": "git"
}
],
"programFiles": [
"drivers/nvdimm/pmem.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.3"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.3",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/nvdimm/pmem.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98161
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48864 · Revision 1
- Added to Heist Feed
- Publisher date