CVE-2026-80826USB: c67x00: fix use-after-free in c67x00_add_iso_urb()
Updated under an hour ago ()
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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
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d before e4039e9bebb528dd9cd7ac72aeaec529c26c355a; from e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d before ade18b4ce78a16558f4f435aece80082f6f7b64c; from e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d before bb572801290e25ec1c4753d14af35777303f5d6b; from e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d before 62cd519ab74cac499036cd88c11692f8f0d53e14; from e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d before ff172092cba7ec990ecc7b610ce703e19570b8f0; from e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d before b4cb8081cf80f82e48fbe9c021a8f6d0fa2ed421; from e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d before 7983daa159981fac125db2457437723f38ea1472; from e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d before f24dcc61bd0ecf7639fac5bf700450b398d793a7; and 1 more ranges | CNA record |
References
- 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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.