net: usb: pegasus: don't rely on id table pointer arithmetic
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
- 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: net: usb: pegasus: don't rely on id table pointer arithmetic The current code is broken when dynamic ID is involved; in such cases usb_device_id parameter of probe lives on the heap and the pointer arithmetic will get an index that is wildly out of bound. Instead of keeping a side table for additional information, use driver_info field of the usb_device_id. The dynamic ID parsing code needs to be updated for this; convert it to just write to the reserved entry for dynamic ID and remove the weird loop.
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 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. 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-2026-97540
- 2026-10-03 Alias added: GHSA-g2f3-3c54-5rm5
- 2026-10-03 Fix available: Linux/Linux@05d47f540d85c8f6697ec5cfc1aa7b4f96a5b31b, Linux/[email protected], Linux/[email protected] +1 · CNA
- 2026-10-03 2 new references · CNA
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 6
- https://git.kernel.org/stable/c/7c940a1100cb0aa18a54dc48d736c0525c0f400c
- https://git.kernel.org/stable/c/05d47f540d85c8f6697ec5cfc1aa7b4f96a5b31b
- https://git.kernel.org/stable/c/9425a13960ef38bac237608f25c9ee64ff113086
- https://git.kernel.org/stable/c/7654812b65047349ea4c111eed42c4315a00e462
- https://git.kernel.org/stable/c/61b84e964a829d534f24eab4cbd4035d22b52601
- https://git.kernel.org/stable/c/ce8101c331956bbd3e20681331dfd22eb7c1c1ea
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Sources
- CVE-2026-97540 · CVE Program
- CVE-2026-97540 · NVD
- FIRST EPSS
- GHSA-g2f3-3c54-5rm5 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-97540 · Red Hat security data · CC BY 4.0
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