Why Does My Process Receive SIGABRT (Signal 6)?

When a Process Receives SIGABRT (Signal 6)

SIGABRT, commonly known as signal 6, is sent to a process when an abnormal termination is initiated. In C , the abort() function triggers this signal to abruptly terminate the executing process.

Causes of SIGABRT

SIGABRT typically occurs when a library function detects a critical error or constraint violation. One common scenario is a heap overflow, where malloc() might call abort(). Other causes include:

• Internal data structure corruption
• Insufficient memory allocation
• Assertion failures in debug builds

Signal Origin

SIGABRT is always generated within the process that experiences the error. It cannot be sent from one process to another.

Identifying the Sending Process

Since SIGABRT originates only from the affected process, there is no way to determine which process is sending the signal.

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