Linux Kernel up to 7.1.4 raid10 raid10_write_request denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.49

Summaryinfo

A vulnerability classified as problematic was found in Linux Kernel up to 7.1.4. The affected element is the function raid10_write_request of the component raid10. Such manipulation leads to denial of service. This vulnerability is traded as CVE-2026-72439. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 7.1.4. Affected by this issue is the function raid10_write_request of the component raid10. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: md/raid10: fix writes_pending leak on write request failures raid10_make_request() acquires a writes_pending reference with md_write_start() before dispatching write requests. Several failure paths in raid10_write_request() complete the bio and return without reaching the normal write completion path, causing the corresponding md_write_end() to be skipped. Make raid10_write_request() return a status indicating whether the write request was successfully queued. This allows raid10_make_request() to release the writes_pending reference with md_write_end() when a write request fails.

The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2026-72439 since 08/09/2026. The exploitation is known to be easy. Local access is required to approach this attack. Additional levels of successful authentication are needed for exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 7.1.5 or 7.2-rc1 eliminates this vulnerability. Applying the patch f94031c94eaebe14a7c9e91720064de0c5a54a6c/e045d6ed33f8faa3e3dd6dc33c62ec01e3ad275d is able to eliminate this problem.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.4
VulDB Temp Score: 4.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 7.1.5/7.2-rc1
Patch: f94031c94eaebe14a7c9e91720064de0c5a54a6c/e045d6ed33f8faa3e3dd6dc33c62ec01e3ad275d

Timelineinfo

08/09/2026 CVE reserved
08/15/2026 +6 days Advisory disclosed
08/15/2026 +0 days VulDB entry created
08/15/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-72439 (🔒)
GCVE (CVE): GCVE-0-2026-72439
GCVE (VulDB): GCVE-100-391034

Entryinfo

Created: 08/15/2026 17:11
Changes: 08/15/2026 17:11 (59)
Complete: 🔍
Cache ID: 216::103

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