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Why is My C Program Crashing with SIGABRT (Signal 6)?

Susan Sarandon

Dec 11, 2024 pm 05:33 PM

Why is My C Program Crashing with SIGABRT (Signal 6)?

SIGABRT (Signal 6) in C : Causes and Identification

In C , SIGABRT (signal 6) is triggered when the calling process utilizes the abort() function, initiating the termination of the process. This typically occurs when the process encounters a critical internal error or a violation of fundamental constraints. For instance, the malloc() function may call abort() if its internal heap structures are compromised by an overflow.

While abort() is generally invoked from within the process itself, it's also possible for a process to receive a SIGABRT signal from another process. However, identifying the sender of such a signal requires additional mechanisms, as SIGABRT does not innately carry information about its origin.

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