Linux kernel sdhci-of-aspeed leaves child devices after release
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
The Linux kernel from 5.4 contains a flaw in the mmc sdhci-of-aspeed driver. On probe failure and removal, SDHCI child devices stay registered after the parent clock and managed resources are released, because the children are not unregistered first.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
Upgrade the Linux kernel to 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, 6.18.54, 7.2.8 or 7.3, which contain the fix.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
- Fix · CNA Linux (Linux) Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, 6.18.54, 7.2.8, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-06 Threatist record created from CVE-2026-98209
- 2026-10-06 Alias added: GHSA-q4rm-j75j-m3m8
- 2026-10-09 Affected versions changed · Red Hat
- 2026-10-09 CVSS score added · Red Hat
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/6b22b4d29e4fc1d2de2e4d7174925d68220165fb
- https://git.kernel.org/stable/c/67e8117df8547433989a6ac1545a68848d0a289f
- https://git.kernel.org/stable/c/bc5e79a5a5651588f3a93bef7815e4e86f78962c
- https://git.kernel.org/stable/c/b84d29f2541c8adb768e468388dbaa4bc25ef157
- https://git.kernel.org/stable/c/7eb896617a6db846b18596c10ca9f8900a73013e
- https://git.kernel.org/stable/c/15b5ffd8af2dd46856da57467eb6e0f90d8ada51
- https://git.kernel.org/stable/c/356b4b3b28a8ecd2a6c66d3b9666686315337df1
- https://git.kernel.org/stable/c/4396d70bb7fec531bcf934fed016b2f3300c670b
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Sources
- CVE-2026-98209 · CVE Program
- CVE-2026-98209 · NVD
- FIRST EPSS
- GHSA-q4rm-j75j-m3m8 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-98209 · Red Hat security data · CC BY 4.0
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