SB2026081588 - Race condition in Linux kernel nvdimm driver

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Main Vulnerability Database SB2026081588

SB2026081588 - Race condition in Linux kernel nvdimm driver

Published: August 15, 2026

Security Bulletin ID SB2026081588
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Race condition (CVE-ID: CVE-2026-74365)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause silent data corruption.

The vulnerability exists due to a race condition in BTT lane acquisition in the Linux kernel nvdimm BTT subsystem when handling BTT I/O. A local user can trigger concurrent use of the same lane to cause silent data corruption.

The issue occurs because BTT lanes became preemptible while the recursion model still relied on a per-CPU recursion count, allowing another task on the same CPU to bypass locking and use the same lane concurrently.


Remediation

Install update from vendor's website.

References