In the Linux kernel, the following vulnerability has been resolved:
net: ti: icss-iep: Fix possible NULL pointer dereference for perout request
The ICSS IEP driver tracks perout and pps enable state with flags. Currently when disabling pps and perout signals during icssiepexit(), results in NULL pointer dereference for perout.
To fix the null pointer dereference issue, the icssiepperoutenablehw function can be modified to directly clear the IEP CMP registers when disabling PPS or PEROUT, without referencing the ptpperoutrequest structure, as its contents are irrelevant in this case.