Linux Kernel up to 7.3-rc3 sdhci-of-aspeed of_platform_device_destroy use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.8$0-$5k0.00

Summaryinfo

A vulnerability categorized as very critical has been discovered in Linux Kernel up to 7.3-rc3. This affects the function of_platform_device_destroy of the component sdhci-of-aspeed. The manipulation results in use after free. This vulnerability is cataloged as CVE-2026-98209. The attack must be initiated from a local position. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.3-rc3. It has been classified as very critical. Affected is the function of_platform_device_destroy of the component sdhci-of-aspeed. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: mmc: sdhci-of-aspeed: Remove children before releasing SDC resources Probe failure and removal leave SDHCI child devices registered after the parent clock and managed resources are released. Unregister the OF children in reverse order before disabling the parent clock on both paths. Use of_platform_device_destroy() because manual child creation does not set the flag required by of_platform_depopulate(). This issue was identified during our ongoing static-analysis research while reviewing kernel code.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2026-98209 since 09/25/2026. The exploitability is told 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. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/06/2026).

Upgrading to version 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, 6.18.54, 7.2.8 or 7.3-rc4 eliminates this vulnerability. Applying the patch 6b22b4d29e4fc1d2de2e4d7174925d68220165fb/67e8117df8547433989a6ac1545a68848d0a289f/bc5e79a5a5651588f3a93bef7815e4e86f78962c/b84d29f2541c8adb768e468388dbaa4bc25ef157/7eb896617a6db846b18596c10ca9f8900a73013e/15b5ffd8af2dd46856da57467eb6e0f90d8ada51/356b4b3b28a8ecd2a6c66d3b9666686315337df1/4396d70bb7fec531bcf934fed016b2f3300c670b is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

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

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 7.8

VulDB Base Score: 8.2
VulDB Temp Score: 7.8
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: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

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 5.10.271/5.15.222/6.1.189/6.6.158/6.12.112/6.18.54/7.2.8/7.3-rc4
Patch: 6b22b4d29e4fc1d2de2e4d7174925d68220165fb/67e8117df8547433989a6ac1545a68848d0a289f/bc5e79a5a5651588f3a93bef7815e4e86f78962c/b84d29f2541c8adb768e468388dbaa4bc25ef157/7eb896617a6db846b18596c10ca9f8900a73013e/15b5ffd8af2dd46856da57467eb6e0f90d8ada51/356b4b3b28a8ecd2a6c66d3b9666686315337df1/4396d70bb7fec531bcf934fed016b2f3300c670b

Timelineinfo

09/25/2026 CVE reserved
10/06/2026 +11 days Advisory disclosed
10/06/2026 +0 days VulDB entry created
10/06/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-98209 (🔒)
GCVE (CVE): GCVE-0-2026-98209
GCVE (VulDB): GCVE-100-414114

Entryinfo

Created: 10/06/2026 12:53
Changes: 10/06/2026 12:53 (59)
Complete: 🔍
Cache ID: 216::103

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

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