PCI: rockchip: Protect root bus removal with rescan lock
Priority LOW 22Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: PCI: rockchip: Protect root bus removal with rescan lock Hold the pci_rescan_remove_lock lock while stopping and removing a root bus to avoid racing with concurrent rescan or hotplug operations triggered via sysfs. Such races may lead to use-after-free issues or system crashes. [bhelgaas: commit log]
Why it matters now
EPSS 0.00173 6th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.10.271, 5.15.222, 6.1.189 +4
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2
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
- 2026-10-02 Threatist record created from CVE-2026-93820
- 2026-10-03 Alias added: GHSA-22c7-9883-6mwx
- 2026-10-03 Fix available: Linux/Linux@025308e7c9cd10112b73558c9f63f8f7285fa726, Linux/[email protected], Linux/[email protected] +5 · CNA
- 2026-10-03 4 new references · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 7
- https://git.kernel.org/stable/c/025308e7c9cd10112b73558c9f63f8f7285fa726
- https://git.kernel.org/stable/c/ac47d42901859edb504a2890a3a5709c86dbc0c3
- https://git.kernel.org/stable/c/eaeb9bed3641741aceb0add84a97023bed61e748
- https://git.kernel.org/stable/c/5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652
- https://git.kernel.org/stable/c/ebca7e5947720e9d4bd918af3e17720270c50744
- https://git.kernel.org/stable/c/9b19201f57d87c4d0777621275dbc59bff41b7f2
- https://git.kernel.org/stable/c/0bd9611587bb494c33566d825fe34b2705e4b167
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Sources
- CVE-2026-93820 · CVE Program
- CVE-2026-93820 · NVD
- FIRST EPSS
- GHSA-22c7-9883-6mwx · GitHub Advisory Database · CC BY 4.0
- CVE-2026-93820 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences