CVEvulnerability
CVE-2026-68331
- Status
- Received
- Published
- 2026-08-10
- Last modified
- 2026-08-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
dpaa2-eth: put MAC endpoint device on disconnect
fsl_mc_get_endpoint() returns the MAC endpoint device with a reference
taken through device_find_child(). The Ethernet connect path stores that
device in mac->mc_dev and keeps it for the lifetime of the connected MAC
object.
However, the disconnect path only disconnects and closes the MAC before
freeing the dpaa2_mac object. It does not drop the endpoint device
reference stored in mac->mc_dev, so every successful connect leaks that
device reference when the MAC is later disconnected.
Drop the endpoint device reference after closing the MAC and before
freeing the dpaa2_mac object.
References
- https://git.kernel.org/stable/c/1974127776da46a000c61f36d4946799ea6d4f51 git.kernel.org
- https://git.kernel.org/stable/c/6b6ffdb9ca4547a3c4c274aa3e25b6c68dbc62e1 git.kernel.org
- https://git.kernel.org/stable/c/915012e923316b8b5d5bf8fc771617b47bd7572d git.kernel.org
- https://git.kernel.org/stable/c/a3cecf169cc652b558d08661bb6ce55e4c933ec0 git.kernel.org
- https://git.kernel.org/stable/c/b4b201cc93ff70150853aba03e14d314d1980ca0 git.kernel.org
- https://git.kernel.org/stable/c/e23e4a3b9dfd893469c731318d409cdf04fb1ddf git.kernel.org
- https://git.kernel.org/stable/c/f112df0744e2d77baa68eeebb860021bbaaa022a git.kernel.org