In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix leaking event log memory During the device remove process, the device is reset, causing the configuration registers to go back to their default state, which is zero. As the driver is checking if the event log support was enabled before deallocating, it will fail if a reset happened before. Do not check if the support was enabled, the check for 'idxd->evl' being valid (only allocated if the HW capability is available) is enough.
https://git.kernel.org/stable/c/facd0012708e942fc12890708738aebde497564e
https://git.kernel.org/stable/c/ee66bc29578391c9b48523dc9119af67bd5c7c0f
https://git.kernel.org/stable/c/d94f9b0ba28a205caf95902ee88b42bdb8af83d0
https://git.kernel.org/stable/c/9dfa00967e6ef43a9dd0887fe5c3a721a39da92e