Linux Kernel up to 7.0.9 block blk_revalidate_disk_zones memory leak

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 7.0.9 and classified as critical. This vulnerability affects the function blk_revalidate_disk_zones of the component block. The manipulation results in memory leak. This vulnerability was named CVE-2026-53127. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.0.9. It has been classified as critical. Affected is the function blk_revalidate_disk_zones of the component block. The manipulation with an unknown input leads to a memory leak vulnerability. CWE is classifying the issue as CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is going to have an impact on availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: block: fix zones_cond memory leak on zone revalidation error paths When blk_revalidate_disk_zones() fails after disk_revalidate_zone_resources() has allocated args.zones_cond, the memory is leaked because no error path frees it.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2026-53127 since 06/09/2026. Technical details are known, but there is no available exploit.

Upgrading to version 7.0.10 eliminates this vulnerability. Applying the patch 29153d128384fa7c48a8ca8d34094b1cbe2d5bdc/2a2f520fda824b5a25c93f2249578ea150c24e06 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

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 7.0.10
Patch: 29153d128384fa7c48a8ca8d34094b1cbe2d5bdc/2a2f520fda824b5a25c93f2249578ea150c24e06

Timelineinfo

06/09/2026 CVE reserved
06/24/2026 +15 days Advisory disclosed
06/24/2026 +0 days VulDB entry created
06/24/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-53127 (🔒)
GCVE (CVE): GCVE-0-2026-53127
GCVE (VulDB): GCVE-100-373398

Entryinfo

Created: 06/24/2026 21:03
Changes: 06/24/2026 21:03 (59)
Complete: 🔍
Cache ID: 216::103

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