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.
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
71947923089353f23f4f210864903c4dcf2c1696 to < 6b6ffdb9ca4547a3c4c274aa3e25b6c68dbc62e1affected71947923089353f23f4f210864903c4dcf2c1696 to < 1974127776da46a000c61f36d4946799ea6d4f51affected71947923089353f23f4f210864903c4dcf2c1696 to < 915012e923316b8b5d5bf8fc771617b47bd7572daffected71947923089353f23f4f210864903c4dcf2c1696 to < e23e4a3b9dfd893469c731318d409cdf04fb1ddfaffected71947923089353f23f4f210864903c4dcf2c1696 to < f112df0744e2d77baa68eeebb860021bbaaa022aaffected71947923089353f23f4f210864903c4dcf2c1696 to < a3cecf169cc652b558d08661bb6ce55e4c933ec0affected71947923089353f23f4f210864903c4dcf2c1696 to < b4b201cc93ff70150853aba03e14d314d1980ca0affected
Linux Linux
Default version status: affected
5.5affected0 to < 5.5unaffected5.15.216 to ≤ 5.15.*unaffected6.1.183 to ≤ 6.1.*unaffected6.6.148 to ≤ 6.6.*unaffected6.12.101 to ≤ 6.12.*unaffected6.18.42 to ≤ 6.18.*unaffected7.1.6 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/6b6ffdb9ca4547a3c4c274aa3e25b6c68dbc62e1 ↗
- https://git.kernel.org/stable/c/1974127776da46a000c61f36d4946799ea6d4f51 ↗
- https://git.kernel.org/stable/c/915012e923316b8b5d5bf8fc771617b47bd7572d ↗
- https://git.kernel.org/stable/c/e23e4a3b9dfd893469c731318d409cdf04fb1ddf ↗
- https://git.kernel.org/stable/c/f112df0744e2d77baa68eeebb860021bbaaa022a ↗
- https://git.kernel.org/stable/c/a3cecf169cc652b558d08661bb6ce55e4c933ec0 ↗
- https://git.kernel.org/stable/c/b4b201cc93ff70150853aba03e14d314d1980ca0 ↗