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Add AT_RANDOM and AT_EXECFN auxiliary vector entries which are used by glibc. At list since glibc version 2.16 using AT_RANDOM is mandatory.
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Authored by dchagin on Nov 2 2014, 10:15 PM.
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dchagin retitled this revision from to Add AT_RANDOM and AT_EXECFN auxiliary vector entries which are used by glibc. At list since glibc version 2.16 using AT_RANDOM is mandatory..

Unfortunate that we have three very similar copies of linux_copyout_strings

sys/amd64/linux/linux_sysvec.c
351

Is it right to call this "canary"? From the kernel's perspective we're just providing some random bytes.

sys/amd64/linux/linux_sysvec.c
351

It's a our exec_copyout_strings() counterpart

In D1080#3, @emaste wrote:

Unfortunate that we have three very similar copies of linux_copyout_strings

hmm, I'll look at it

trasz added inline comments.
sys/amd64/linux/linux_sysvec.c
324

I don't understand that piece of code very well, but you increased LINUX_AT_COUNT by 2, and here you are using 1 _or_ 2 additional elements. Is that ok?

This revision was automatically updated to reflect the committed changes.