Why are C-H bonds reactive in redox/ combustion

[Elite Engineer]

I know why O-O bonds in peroxides, and other bonds are reactive in a redox reaction, but why are C-H bonds able to combust in a redox reaction? It seems C-H bonds are relatively stable. Why does methane, ethane, propane, etc. react with combustion?

 

~ee

[Enthalpy]

Hot.

[John Cuthber]

The CO and OH bonds are even more stable.