60a9bb9048f9 ("blktrace: introduce 'blk_trace_{start,stop}' helper") 30939293262e ("blktrace: fix use after free for struct blk_trace") 361c81dbc58c ("blktrace: switch trace spinlock to a raw spinlock") 5afedf670caf ("blktrace: Fix uaf in blk_trace access after removing by sysfs")