TI-2026-64558 Aliases CVE-2026-98161 GHSA-rj67-jfhc-gr45

nvdimm: pmem: keep PREFLUSH before data writes

LOW 24CWE-754Published 2026-09-25 · Updated 2026-10-21

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · High
Fix status: Partial Red Hat: 5 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

EPSS 0.00114 1st percentileScored 2026-11-07

Fix Partial Linux (Linux): 6.6.160, 6.12.112, 6.18.52 +2Red Hat: 5 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Linux	Linux	5.3 and later	6.6.160, 6.12.112, 6.18.52, 7.2.6, 7.3	Patch available	CNA

Linux VendorLinux Affected 5.3 and later Fixed in 6.6.160, 6.12.112, 6.18.52, 7.2.6, 7.3 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel::::::::	5.3 to before 6.18.52; 6.19 to before 7.2.6	Vulnerable	Linux

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.3 to before 6.18.52; 6.19 to before 7.2.6 Vulnerable ·Linux

Remediation

Fix · CNA Linux (Linux) Fixed in 6.6.160, 6.12.112, 6.18.52, 7.2.6, 7.3

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 10	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 8	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 9	Affected	No fix yet: Fix deferred
Red Hat OpenShift Container Platform 4	Affected	No fix yet: Fix deferred
Red Hat OpenShift Container Platform 5	Affected	No fix yet: Fix deferred

Not affected: 2 products

Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7

Timeline

2026-10-02 Threatist record created from CVE-2026-98161
2026-10-03 Alias added: GHSA-rj67-jfhc-gr45
2026-10-03 Fix available: Linux/[email protected], Linux/Linux@d34c30bc994328d9cf6749b2e9a32aabd08fd076 · CNA
2026-10-03 1 new reference · CNA
2026-10-19 Fix available: Linux/[email protected] · CNA
2026-10-21 Fix available: Linux/Linux@22d1f4dcdc9c6d0295c6db0c8933126098b14e05, Linux/[email protected] · CNA
2026-10-21 1 new reference · CNA
2026-11-06 Affected versions changed · Red Hat

References

Patch 3

Other 2

TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3

See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences