CVE-2026-23061
Published: Feb 4, 2026
Modified: May 11, 2026
Description
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.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 080f40a6fa28dab299da7a652e444b1e2d9231e7 - < d9d824582f2ec76459ffab449e9b05c7bc49645caffected 080f40a6fa28dab299da7a652e444b1e2d9231e7 - < 40a3334ffda479c63e416e61ff086485e24401f7affected 080f40a6fa28dab299da7a652e444b1e2d9231e7 - < c1b39fa24c140bc616f51fef4175c1743e2bb132affected 080f40a6fa28dab299da7a652e444b1e2d9231e7 - < 7c308f7530bffafa994e0aa8dc651a312f4b9ff4affected 080f40a6fa28dab299da7a652e444b1e2d9231e7 - < 94a7fc42e21c7d9d1c49778cd1db52de5df52a01+2 more versions |
Linux | Linux | affected 3.8unaffected 0 - < 3.8unaffected 5.10.249 - <= 5.10.*unaffected 5.15.199 - <= 5.15.*unaffected 6.1.162 - <= 6.1.*+4 more versions |
References
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