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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
080f40a6fa28dab299da7a652e444b1e2d9231e7 to < d9d824582f2ec76459ffab449e9b05c7bc49645caffected080f40a6fa28dab299da7a652e444b1e2d9231e7 to < 40a3334ffda479c63e416e61ff086485e24401f7affected080f40a6fa28dab299da7a652e444b1e2d9231e7 to < c1b39fa24c140bc616f51fef4175c1743e2bb132affected080f40a6fa28dab299da7a652e444b1e2d9231e7 to < 7c308f7530bffafa994e0aa8dc651a312f4b9ff4affected080f40a6fa28dab299da7a652e444b1e2d9231e7 to < 94a7fc42e21c7d9d1c49778cd1db52de5df52a01affected080f40a6fa28dab299da7a652e444b1e2d9231e7 to < 3b1a593eab941c3f32417896cc7df564191f2482affected080f40a6fa28dab299da7a652e444b1e2d9231e7 to < 248e8e1a125fa875158df521b30f2cc7e27eeeaaaffected
Linux Linux
Default version status: affected
3.8affected0 to < 3.8unaffected5.10.249 to ≤ 5.10.*unaffected5.15.199 to ≤ 5.15.*unaffected6.1.162 to ≤ 6.1.*unaffected6.6.122 to ≤ 6.6.*unaffected6.12.68 to ≤ 6.12.*unaffected6.18.8 to ≤ 6.18.*unaffected6.19 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/d9d824582f2ec76459ffab449e9b05c7bc49645c ↗
- https://git.kernel.org/stable/c/40a3334ffda479c63e416e61ff086485e24401f7 ↗
- https://git.kernel.org/stable/c/c1b39fa24c140bc616f51fef4175c1743e2bb132 ↗
- https://git.kernel.org/stable/c/7c308f7530bffafa994e0aa8dc651a312f4b9ff4 ↗
- https://git.kernel.org/stable/c/94a7fc42e21c7d9d1c49778cd1db52de5df52a01 ↗
- https://git.kernel.org/stable/c/3b1a593eab941c3f32417896cc7df564191f2482 ↗
- https://git.kernel.org/stable/c/248e8e1a125fa875158df521b30f2cc7e27eeeaa ↗