CVE-2026-80826

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.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/62cd519ab74cac499036cd88c11692f8f0d53e14
https://git.kernel.org/stable/c/7983daa159981fac125db2457437723f38ea1472
https://git.kernel.org/stable/c/ade18b4ce78a16558f4f435aece80082f6f7b64c
https://git.kernel.org/stable/c/b1e24de475bf2d66fffc9103f3444b783527d55a
https://git.kernel.org/stable/c/b4cb8081cf80f82e48fbe9c021a8f6d0fa2ed421
https://git.kernel.org/stable/c/bb572801290e25ec1c4753d14af35777303f5d6b
https://git.kernel.org/stable/c/e4039e9bebb528dd9cd7ac72aeaec529c26c355a
https://git.kernel.org/stable/c/f24dcc61bd0ecf7639fac5bf700450b398d793a7
https://git.kernel.org/stable/c/ff172092cba7ec990ecc7b610ce703e19570b8f0

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-04 16:18

Updated : 2026-09-04 16:18

NVD link : CVE-2026-80826

Mitre link : CVE-2026-80826

CVE.ORG link : CVE-2026-80826

JSON object : View

Products Affected

No product.

CWE

No CWE.

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The following accesses to\nurbp->ep_data, urb->interval, and urbp->cnt can therefore use freed\nmemory.\n\nUpdate next_frame and cnt before giving back the failed final packet,\nmaking the giveback the last operation that uses the URB and its private\ndata."}], "lastModified": "2026-09-04T16:18:10.543", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}