CVE-2026-68331
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.
How to fix
- Linux Linux6b6ffdb9ca4547a3c4c274aa3e25b6c68dbc62e1, 1974127776da46a000c61f36d4946799ea6d4f51, 915012e923316b8b5d5bf8fc771617b47bd7572d, e23e4a3b9dfd893469c731318d409cdf04fb1ddf, f112df0744e2d77baa68eeebb860021bbaaa022a, a3cecf169cc652b558d08661bb6ce55e4c933ec0, b4b201cc93ff70150853aba03e14d314d1980ca0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 71947923089353f23f4f210864903c4dcf2c1696 ≤ v < 6b6ffdb9ca4547a3c4c274aa3e25b6c68dbc62e1, 71947923089353f23f4f210864903c4dcf2c1696 ≤ v < 1974127776da46a000c61f36d4946799ea6d4f51, 71947923089353f23f4f210864903c4dcf2c1696 ≤ v < 915012e923316b8b5d5bf8fc771617b47bd7572d, 71947923089353f23f4f210864903c4dcf2c1696 ≤ v < e23e4a3b9dfd893469c731318d409cdf04fb1ddf, 71947923089353f23f4f210864903c4dcf2c1696 ≤ v < f112df0744e2d77baa68eeebb860021bbaaa022a, 71947923089353f23f4f210864903c4dcf2c1696 ≤ v < a3cecf169cc652b558d08661bb6ce55e4c933ec0, 71947923089353f23f4f210864903c4dcf2c1696 ≤ v < b4b201cc93ff70150853aba03e14d314d1980ca0, 5.5 | 6b6ffdb9ca4547a3c4c274aa3e25b6c68dbc62e1, 1974127776da46a000c61f36d4946799ea6d4f51, 915012e923316b8b5d5bf8fc771617b47bd7572d, e23e4a3b9dfd893469c731318d409cdf04fb1ddf, f112df0744e2d77baa68eeebb860021bbaaa022a, a3cecf169cc652b558d08661bb6ce55e4c933ec0, b4b201cc93ff70150853aba03e14d314d1980ca0 |
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