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.
Affected versions
Linux kernel versions
2.6.26
and later are affected. 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
and their respective stable series.
References
9 totalFrequently asked questions
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What is CVE-2026-80826?
CVE-2026-80826 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 2.6.26 onward and has been patched in 5.10.269, 5.15.220, 6.1.187 and others. CVE-2026-80826 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-80826?
Yes. CVE-2026-80826 has been patched. Fixed versions include 5.10.269, 5.15.220, 6.1.187 and others. If you are running Linux kernel 2.6.26 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-80826 actively exploited?
No. CVE-2026-80826 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.