Answer in brief
CVE-2026-23061 records a Unknown severity vulnerability in can: kvaser_usb: kvaser_usb_read_bulk_callback(): fix URB memory leak. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=080f40a6fa28dab299da7a652e444b1e2d9231e7 <d9d824582f2ec76459ffab449e9b05c7bc49645c || >=080f40a6fa28dab299da7a652e444b1e2d9231e7 <40a3334ffda479c63e416e61ff086485e24401f7 || >=080f40a6fa28dab299da7a652e444b1e2d9231e7 <c1b39fa24c140bc616f51fef4175c1743e2bb132 || >=080f40a6fa28dab299da7a652e444b1e2d9231e7 <7c308f7530bffafa994e0aa8dc651a312f4b9ff4 || >=080f40a6fa28dab299da7a652e444b1e2d9231e7 <94a7fc42e21c7d9d1c49778cd1db52de5df52a01 || >=080f40a6fa28dab299da7a652e444b1e2d9231e7 <3b1a593eab941c3f32417896cc7df564191f2482 || >=080f40a6fa28dab299da7a652e444b1e2d9231e7 <248e8e1a125fa875158df521b30f2cc7e27eeeaa | d9d824582f2ec76459ffab449e9b05c7bc49645c, 40a3334ffda479c63e416e61ff086485e24401f7, c1b39fa24c140bc616f51fef4175c1743e2bb132, 7c308f7530bffafa994e0aa8dc651a312f4b9ff4, 94a7fc42e21c7d9d1c49778cd1db52de5df52a01, 3b1a593eab941c3f32417896cc7df564191f2482, 248e8e1a125fa875158df521b30f2cc7e27eeeaa |
| Linux/Linuxgeneric | 3.8 | Not reported |
Published upstream
Feb 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 19, 2026
In the Linux kernel, the following vulnerability has been resolved: can: kvaser_usb: kvaser_usb_read_bulk_callback(): fix URB memory leak Fix similar memory leak as in commit 7352e1d5932a ("can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak"). In kvaser_usb_set_{,data_}bittiming() -> kvaser_usb_setup_rx_urbs(), the URBs for USB-in transfers are allocated, added to the dev->rx_submitted anchor and submitted. In the complete callback kvaser_usb_read_bulk_callback(), the URBs are processed and resubmitted. In kvaser_usb_remove_interfaces() the URBs are freed by calling usb_kill_anchored_urbs(&dev->rx_submitted). However, this does not take into account that the USB framework unanchors the URB before the complete function is called. This means that once an in-URB has been completed, it is no longer anchored and is ultimately not released in usb_kill_anchored_urbs(). Fix the memory leak by anchoring the URB in the kvaser_usb_read_bulk_callback() to the dev->rx_submitted anchor.
Quoted source text, attributed separately from HOL analysis.