Linux errno
Linux errno EFAULT
In Linux errno, code EFAULT is EFAULT. The official source describes it as “Bad address”. Its concrete cause depends on the operation and surrounding message.
CodeEFAULT
SymbolEFAULT
Source confidencehigh
Official definition
Bad address
In plain language
In Linux errno, code EFAULT is EFAULT. The official source describes it as “Bad address”. Its concrete cause depends on the operation and surrounding message.
Context to inspect
- The surrounding operation, version and subsystem determine the actual cause.
- The same numeric value can mean something different in another namespace.
Safe first checks
- Confirm which product, protocol or subsystem produced the code.
- Read the full surrounding error message and inspect relevant logs.
- Compare the code with the linked authoritative documentation before changing configuration.
Important context
Numeric value on this Linux runtime: 14. Numeric errno values can vary across systems. The symbolic errno name is the portable identity; numeric mappings can vary by platform.