----- Original Message ----- > uintptr_t is defined in stdint.h > > Fixes > | dirtyc0w_child.c:76:15: error: 'uintptr_t' undeclared (first use in this > | function); did you mean 'intptr_t'? > | lseek(mfd, (uintptr_t) map, SEEK_SET); > | ^~~~~~~~~ Pushed. Thanks, Jan