On Sun, Jul 27, 2014 at 10:22 AM, zubraz singha <zubrajsin...@gmail.com> wrote: > Hey Guys, > While writing a read proc entry for Linux kernel (version 2.6.36.4), I > found that the kernel function "copy_to_user" is not working properly. > The kernel function used internally by "copy_to_user" i.e. > "__copy_to_user" works fine and also this same function "copy_to_user" > works quite well on the higher kernel versions, I tried it on Linux > kernel version 3.14. The kernel source code for "2.6.36.4" doesn't > have a definition for a function i.e "_copy_to_user", which is being > called internally by "copy_to_user". However the function > "_copy_to_user" has a definition in higher version kernels like 3.14 > etc. I cannot update my kernel, Is there any way I can fix this issue > by manually patching the kernel. There are two possible ways in which > I think it can be solved. > > - Write a definition for the _copy_to_user in "2.6.36.4", which will > have the same "access_ok" check and corresponding "__copy_to_user" > function call. > - Modifying the function "copy_to_user" and adding the "access_ok" > check and the "__copy_to_user" function.
2.6.36.x is not a supported release. The issue is maybe fixed in other versions but as your release is not a stable kernel you are on your own. Sorry. -- Thanks, //richard -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
