CVE-2026-98161nvdimm: pmem: keep PREFLUSH before data writes
- 5.5MediumCVSS base score
- 0.11%Exploitation in 30 daysEPSS · top 98% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
Published
- 26 days later
· 26 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.11% · top 98% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected c5d4355d10d414a96ca870b731756b89d068d57a – < 22d1f4dcdc9c6d0295c6db0c8933126098b14e05
- affected c5d4355d10d414a96ca870b731756b89d068d57a – < d34c30bc994328d9cf6749b2e9a32aabd08fd076
- affected c5d4355d10d414a96ca870b731756b89d068d57a – < 770a90c2127220f0fc194ce909ad4f0842e141cb
- affected c5d4355d10d414a96ca870b731756b89d068d57a – < 72561ca1ab96f0f0f32737a6171641e05a318538
- affected c5d4355d10d414a96ca870b731756b89d068d57a – < c644a2f8fef5618fcf453c591177700fd07dd024
- affected 5.3
- unaffected < 5.3
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.112 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References5
- https://git.kernel.org/stable/c/22d1f4dcdc9c6d0295c6db0c8933126098b14e05 (opens in a new tab)
- https://git.kernel.org/stable/c/d34c30bc994328d9cf6749b2e9a32aabd08fd076 (opens in a new tab)
- https://git.kernel.org/stable/c/770a90c2127220f0fc194ce909ad4f0842e141cb (opens in a new tab)
- https://git.kernel.org/stable/c/72561ca1ab96f0f0f32737a6171641e05a318538 (opens in a new tab)
- https://git.kernel.org/stable/c/c644a2f8fef5618fcf453c591177700fd07dd024 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-87061 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-98161)Record last updated .