In one example implementation, a system for patching a kernel can comprise a plurality of processor resources, a distribution engine to divide a kernel thread list into a number of portions, and a handler engine to manage processing a portion of the kernel thread list to determine when a target function is associated with the portion of the kernel thread list. In another example implementation, a method for patching a kernel can comprise receiving an online patch request, sending an interrupt to a plurality of processor resources, distributing a kernel thread list to the plurality of processor resources, and parsing a portion of the kernel thread list on one of the plurality of processor resources to determine when the portion is associated with a target function.