>   Well, but imagine you have a file /proc/my_secret_file from which you
quoted text
> are able to read from position A:a and B:b but not from position
> A:b. Concievably, checks for the file position could be bypassed because of
> this race... I know this is kind of dumb example but I can imagine someone

Unlikely as the ppos passed to the driver is a private copy and the user
could equally use pread/pwrite to specify that offset.
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