Differences of the kernel from kernel.org from that in distributions like RedHat & Debian?

Question

linux

Hello. Please tell me, are there any differences besides the basic configurations of the kernel from kernel.org and the same versions of packages with kernels from distributions from the RedHat and Debian ecosystems? Maybe they contain some custom driver patches?

Answer 1

Yes, they contain, sometimes quite a lot, usually these are patches that, for one reason or another, did not get into the original kernels. For example, many distributions out of the box contained patches that were not included in the kernel (for example, for RaiserFS at one time), drivers for Wifi, network cards, additional IO schedulers, network stack improvements, proprietary drivers.
Closest to vanilla are the Debian kernels. But there are also backports (patches of new features to old kernels). This is done to increase stability while maintaining new interesting features without breaking everything else....
In most cases, vanilla kernels are suitable for 90% of users. But there are those 10% for which distribution builders will make their custom patches.

Answer 2

vanilla core