Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: can: mcba_usb: mcba_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 mcba_usb_probe() -> mcba_usb_start(), the URBs for USB-in transfers are allocated, added to the priv->rx_submitted anchor and submitted. In the complete callback mcba_usb_read_bulk_callback(), the URBs are processed and resubmitted. In mcba_usb_close() -> mcba_urb_unlink() the URBs are freed by calling usb_kill_anchored_urbs(&priv->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 mcba_usb_read_bulk_callback()to the priv->rx_submitted anchor.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 51f3baad7de943780ce0c17bd7975df567dd6e14 before 8b34c611a4feb81921bc4728c091e4e3ba0270c0; affected 51f3baad7de943780ce0c17bd7975df567dd6e14 before b5a1ccdc63b71d93a69a6b72f7a3f3934293ea60; affected 51f3baad7de943780ce0c17bd7975df567dd6e14 before 59153b6388e05609144ad56a9b354e9100a91983; affected 51f3baad7de943780ce0c17bd7975df567dd6e14 before 179f6f0cf5ae489743273b7c1644324c0c477ea9; affected 51f3baad7de943780ce0c17bd7975df567dd6e14 before 94c9f6f7b953f6382fef4bdc48c046b861b8868f; affected 51f3baad7de943780ce0c17bd7975df567dd6e14 before d374d715e338dfc3804aaa006fa6e470ffebb264; affected 51f3baad7de943780ce0c17bd7975df567dd6e14 before 710a7529fb13c5a470258ff5508ed3c498d54729 |
| Linux / Linux | affected 4.12; unaffected 0 before 4.12; unaffected 5.10.249 through 5.10.*; unaffected 5.15.199 through 5.15.*; unaffected 6.1.162 through 6.1.*; unaffected 6.6.122 through 6.6.*; unaffected 6.12.68 through 6.12.*; unaffected 6.18.8 through 6.18.*; unaffected 6.19 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/8b34c611a4feb81921bc4728c091e4e3ba0270c0
- https://git.kernel.org/stable/c/b5a1ccdc63b71d93a69a6b72f7a3f3934293ea60
- https://git.kernel.org/stable/c/59153b6388e05609144ad56a9b354e9100a91983
- https://git.kernel.org/stable/c/179f6f0cf5ae489743273b7c1644324c0c477ea9
- https://git.kernel.org/stable/c/94c9f6f7b953f6382fef4bdc48c046b861b8868f
- https://git.kernel.org/stable/c/d374d715e338dfc3804aaa006fa6e470ffebb264
- https://git.kernel.org/stable/c/710a7529fb13c5a470258ff5508ed3c498d54729