CVE-2026-80826None▾ SunlitIn 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 befor…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d < e4039e9bebb528dd9cd7ac72aeaec529c26c355aLinux >= e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d < ade18b4ce78a16558f4f435aece80082f6f7b64cLinux >= e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d < bb572801290e25ec1c4753d14af35777303f5d6bLinux >= e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d < 62cd519ab74cac499036cd88c11692f8f0d53e14Linux >= e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d < ff172092cba7ec990ecc7b610ce703e19570b8f0Linux >= e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d < b4cb8081cf80f82e48fbe9c021a8f6d0fa2ed421Linux >= e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d < 7983daa159981fac125db2457437723f38ea1472Linux >= e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d < f24dcc61bd0ecf7639fac5bf700450b398d793a7Linux >= e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d < b1e24de475bf2d66fffc9103f3444b783527d55aLinux 2.6.26Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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