usb: core: hcd: fix possible deadlock in rh control transfers
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
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- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 7 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: core: hcd: fix possible deadlock in rh control transfers >From within the SCSI error handler memory allocations must not trigger IO. Handling errors in UAS and the storage driver may involve resetting a device. The thread doing the reset itself relies on VM magic. However, that is insufficient, as resetting a device involves resuming it. Resumption as well as resetting involves conrol transfers to the parent of the device to be reset. That may be a root hub. Hence usbcore must heed the flags passed to usb_submit_urb() processing control transfers to root hubs. The problem exist since the storage driver has been merged.
Why it matters now
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: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-97483
- 2026-10-03 Alias added: GHSA-47j5-5c6r-5qfh
- 2026-10-03 Fix available: Linux/[email protected], Linux/[email protected], Linux/[email protected] +5 · CNA
- 2026-10-03 4 new references · CNA
- 2026-11-07 Affected versions changed · Red Hat
References
Other 7
- https://git.kernel.org/stable/c/8461eda5af77c44d216cec66455bd5b01ee35c9a
- https://git.kernel.org/stable/c/8f82fc3d72e5feb7a1efae94b51b431c5bf41c86
- https://git.kernel.org/stable/c/936b08d87c667031725bcc753007e7c1182548c6
- https://git.kernel.org/stable/c/d0291fb4d91982d9f6a680bf759ff0555d351ecb
- https://git.kernel.org/stable/c/fff917c85d37a294397c5440a795591ca9d6b602
- https://git.kernel.org/stable/c/549672a3fb6b36ea408238f89ecf9f41d2da6225
- https://git.kernel.org/stable/c/d5559f43d76b398392b26a15cbc16d731969cd1c
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Sources
- CVE-2026-97483 · CVE Program
- CVE-2026-97483 · NVD
- FIRST EPSS
- GHSA-47j5-5c6r-5qfh · GitHub Advisory Database · CC BY 4.0
- CVE-2026-97483 · Red Hat security data · CC BY 4.0
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