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SubjectRe: [PATCH] fsi:fsi-sbefifo: Fix possible concurrency use-after-free bugs in sbefifo_user_release
Date
Jia-Ju Bai <baijiaju1990@gmail.com> wrote:

> + mutex_lock(&user->file_lock);
> sbefifo_release_command(user);
> free_page((unsigned long)user->cmd_page);
> + mutex_unlock(&user->file_lock);

It shouldn't be necessary to do the free_page() call inside the locked
section.

David

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