I2C dev interface

[PaX Team]

make fs/compat_ioctl.s should build it.

[gregkmoff]

Okay I've uploaded it to https://dl.dropboxusercontent.com/u/109924208/compat_ioctl.s

[PaX Team]

interesting, the structure offsets look fine based on the asm. can you also post a version with the previously mentioned hunk applied?

[gregkmoff]

This is with the hunk applied.

https://dl.dropboxusercontent.com/u/109924208/compat_ioctl.s.new

[PaX Team]

ok, that's bad news as the asm didn't change, it's still a 64 bit load instead of a 32 bit one on line 706. can you remove the PaX part altogether from this file and see if it helps (also upload the corresponding .s please)?

[gregkmoff]

Removing the changes from the file worked.

Here's the .s with the changes:

https://dl.dropboxusercontent.com/u/109924208/compat_ioctl.s.nopax

[PaX Team]

i just checked my fix here and it produces the correct assembly (lw instead of ld for loading that pointer from userland) so i don't know why it failed for you. in any case you'll get the working code next time you update to the latest grsec patch.

[gregkmoff]

Did a full clean build and this addressed the problem. Thanks.