In the Linux kernel, the following vulnerability has been resolved:

regmap: Fix race condition in hwspinlock irqsave routine

Previously, the address of the shared member '&map->spinlock_flags' was
passed directly to 'hwspin_lock_timeout_irqsave'. This creates a race
condition where multiple contexts contending for the lock could overwrite
the shared flags variable, potentially corrupting the state for the
current lock owner.

Fix this by using a local stack variable 'flags' to store the IRQ state
temporarily.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
8698b9364710e7bac84b3af07dd410e39c8c2e08 affected < 24f31be6ad70537fd7706269d99c92cade465a09
8698b9364710e7bac84b3af07dd410e39c8c2e08 affected < 4aab0ca0a0f7760e33edcb4e47576064d05128f5
8698b9364710e7bac84b3af07dd410e39c8c2e08 affected < c2d2cf710dc3ee1a69e00b4ed8de607a92a07889
8698b9364710e7bac84b3af07dd410e39c8c2e08 affected < 4b58aac989c1e3fafb1c68a733811859df388250
Linux Linux affected
Version Status Constraints
4.15 affected —
0 unaffected < 4.15
6.6.122 unaffected ≤ 6.6.*
6.12.68 unaffected ≤ 6.12.*
6.18.8 unaffected ≤ 6.18.*
6.19-rc7 unaffected ≤ *

No data.

No data.

No data.

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/24f31be6ad70537fd7706269d99c92cade465a09 cve-icon cve-icon
https://git.kernel.org/stable/c/4aab0ca0a0f7760e33edcb4e47576064d05128f5 cve-icon cve-icon
https://git.kernel.org/stable/c/4b58aac989c1e3fafb1c68a733811859df388250 cve-icon cve-icon
https://git.kernel.org/stable/c/c2d2cf710dc3ee1a69e00b4ed8de607a92a07889 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2026020418-CVE-2026-23071-675b@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-23071 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-23071 cve-icon
History

Thu, 05 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Wed, 04 Feb 2026 16:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: regmap: Fix race condition in hwspinlock irqsave routine Previously, the address of the shared member '&map->spinlock_flags' was passed directly to 'hwspin_lock_timeout_irqsave'. This creates a race condition where multiple contexts contending for the lock could overwrite the shared flags variable, potentially corrupting the state for the current lock owner. Fix this by using a local stack variable 'flags' to store the IRQ state temporarily.
Title regmap: Fix race condition in hwspinlock irqsave routine
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-02-04T16:07:51.603Z

Reserved: 2026-01-13T15:37:45.955Z

Link: CVE-2026-23071

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-02-04T17:16:17.817

Modified: 2026-02-04T17:16:17.817

Link: CVE-2026-23071

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-02-04T00:00:00Z

Links: CVE-2026-23071 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.