CVE-2026-98161nvdimm: pmem: keep PREFLUSH before data writes
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from c5d4355d10d414a96ca870b731756b89d068d57a before d34c30bc994328d9cf6749b2e9a32aabd08fd076; from c5d4355d10d414a96ca870b731756b89d068d57a before 770a90c2127220f0fc194ce909ad4f0842e141cb; from c5d4355d10d414a96ca870b731756b89d068d57a before 72561ca1ab96f0f0f32737a6171641e05a318538; from c5d4355d10d414a96ca870b731756b89d068d57a before c644a2f8fef5618fcf453c591177700fd07dd024 | CNA record |
linux linux_kernel linux:linux_kernel | from 5.3 before 6.18.52; from 6.19 before 7.2.6 | NVD |
References
- https://git.kernel.org/stable/c/d34c30bc994328d9cf6749b2e9a32aabd08fd076
- https://git.kernel.org/stable/c/770a90c2127220f0fc194ce909ad4f0842e141cbpatch
- https://git.kernel.org/stable/c/72561ca1ab96f0f0f32737a6171641e05a318538patch
- https://git.kernel.org/stable/c/c644a2f8fef5618fcf453c591177700fd07dd024patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.