c - Valgrind: Conditional jump or move depends on uninitialised value / Uninitialised value was created by a stack allocation

Question

Trying to debug my C program with valgrind and for some reason it doesn't/can't tell me where the problem is and I have no idea what /dev/ttys00 is.

==25773==    at 0x7FFF2037495F: ??? (in /dev/ttys000)
==25773==    by 0x7FFF20240FFA: ??? (in /dev/ttys000)
==25773==    by 0x7FFF20249CF0: ??? (in /dev/ttys000)
==25773==    by 0x7FFF2026E8B8: ??? (in /dev/ttys000)
==25773==    by 0x7FFF20246EF5: ??? (in /dev/ttys000)
==25773==    by 0x7FFF20245061: ??? (in /dev/ttys000)
==25773==    by 0x100003719: print_node
==25773==    by 0x100003769: find_and_print
==25773==    by 0x10000391A: interface
==25773==    by 0x100003A9D: main
==25773==  Uninitialised value was created by a stack allocation
==25773==    at 0x7FFF20246FDF: ??? (in /dev/ttys000)

question from:https://stackoverflow.com/questions/65875252/valgrind-conditional-jump-or-move-depends-on-uninitialised-value-uninitialise

Answer 1

the first 5 problems are in the device driver /dev/ttys000

This is a sure sign that your source code has a problem.

Please post your source code.

BTW: do you actually have a device named: ttys000?