USB: c67x00: fix use-after-free in c67x00_add_iso_urb()
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
In the Linux kernel, the following vulnerability has been resolved: USB: c67x00: fix use-after-free in c67x00_add_iso_urb() When TD creation fails for the last packet of an isochronous URB, c67x00_add_iso_urb() gives the URB back before updating the endpoint scheduling state. c67x00_giveback_urb() frees the URB private data, and the completion callback may release the final URB reference. The following accesses to urbp->ep_data, urb->interval, and urbp->cnt can therefore use freed memory. Update next_frame and cnt before giving back the failed final packet, making the giveback the last operation that uses the URB and its private data.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 2.6.26 and later | 5.10.269, 5.15.220, 6.1.187, 6.6.156, 6.12.108, 6.18.49, 7.1.13, 7.2.3, 7.3 | Patch available | CNA |
- Linux VendorLinux Affected 2.6.26 and later Fixed in 5.10.269, 5.15.220, 6.1.187, 6.6.156, 6.12.108, 6.18.49, 7.1.13, 7.2.3, 7.3 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.269, 5.15.220, 6.1.187, 6.6.156, 6.12.108, 6.18.49, 7.1.13, 7.2.3, 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
- 2026-10-02 Threatist record created from CVE-2026-80826
- 2026-10-03 Alias added: GHSA-24fg-x37m-25c7
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-06 Affected versions changed · Red Hat
- 2026-11-06 CVSS score added · Red Hat
References
Other 9
- https://git.kernel.org/stable/c/e4039e9bebb528dd9cd7ac72aeaec529c26c355a
- https://git.kernel.org/stable/c/ade18b4ce78a16558f4f435aece80082f6f7b64c
- https://git.kernel.org/stable/c/bb572801290e25ec1c4753d14af35777303f5d6b
- https://git.kernel.org/stable/c/62cd519ab74cac499036cd88c11692f8f0d53e14
- https://git.kernel.org/stable/c/ff172092cba7ec990ecc7b610ce703e19570b8f0
- https://git.kernel.org/stable/c/b4cb8081cf80f82e48fbe9c021a8f6d0fa2ed421
- https://git.kernel.org/stable/c/7983daa159981fac125db2457437723f38ea1472
- https://git.kernel.org/stable/c/f24dcc61bd0ecf7639fac5bf700450b398d793a7
- https://git.kernel.org/stable/c/b1e24de475bf2d66fffc9103f3444b783527d55a
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- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2026-80826 · CVE Program
- CVE-2026-80826 · NVD
- FIRST EPSS
- GHSA-24fg-x37m-25c7 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-80826 · 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