CVE-2026-80826 Affecting linux-6.12 package, versions <6.12.111-1~deb12u1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-LINUX612-20506951
- published5 Oct 2026
- disclosed4 Sept 2026
Introduced: 4 Sep 2026
CVE-2026-80826 (opens in a new tab)How to fix?
Upgrade Debian:12 linux-6.12 to version 6.12.111-1~deb12u1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream linux-6.12 package and not the linux-6.12 package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2026-80826
- 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