Git Commit Hash – How to Find Kernel Release Containing It

As previously stated, this can be done with git describe. In your particular case, however, you may find it more convenient to run git name-rev --tags --name-only <SHA>, which outputs exactly what you want. See git-name-rev(1).

According to the git commit history, the particular commit you identified as containing the fix you needed was merged to the mainline kernel in v3.13-rc1:

$ git describe --contains 68273712a19e9107a498a371532b3b3eb6dbb14c
v3.13-rc1~105^2~360

Unfortunately it seems unlikely that the particular patch would get included into older kernels in the stable development branch as that is generally only done to relatively small and critical fixes for security problems or significant regressions discovered in a given 3.x kernel.

That said, it isn't impossible that the fix would get picked up by distribution maintainers, or you could always apply the patch yourself and build your own kernel.

The Ubuntu kernel sources can be obtained by running:

git clone git://kernel.ubuntu.com/ubuntu/ubuntu-<release>.git

As a sidenote, you might want to install the linux-current-generic package instead of linux-generic-lts-raring as the former will on depend the most recently released generic kernel image and headers, up to 14.04 inclusive.