Messages in this thread | | | Date | Thu, 3 Dec 2015 17:12:37 -0700 | From | Jonathan Corbet <> | Subject | Re: Accessing user-land memory without safe functions |
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On Thu, 3 Dec 2015 13:54:30 -0700 Scotty Bauer <sbauer@eng.utah.edu> wrote:
> Since I've seen this a couple times now I'm wondering if my > understanding of touching user-land memory is flawed. > > For the above example Ioctl, the proper way to get access to those fields > through the safe copy_from_user or get_user() functions, correct? > > I'm wondering if I should submit patches to fix the issues I've found, > but now I'm doubting whether they're really issues at all.
They sound like bugs to me, though it would be easier to say for sure with a pointer to a specific function in the kernel source. Please point something out, or, perhaps better, send a patch fixing one of them.
Thanks,
jon
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