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Fix critical bug in tau_realloc causing memory leaks and undefined behavior #58

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Merged
jasmcaus merged 1 commit into from
Aug 19, 2025
Merged

Fix critical bug in tau_realloc causing memory leaks and undefined behavior #58

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11 changes: 7 additions & 4 deletions tau/tau.h
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Original file line number Diff line number Diff line change
Expand Up @@ -319,10 +319,13 @@ static void tauClockPrintDuration(const double nanoseconds_duration) {

static inline void* tau_realloc(void* const ptr, const tau_ull new_size) {
void* const new_ptr = realloc(ptr, new_size);

if(TAU_NONE(new_ptr))
free(new_ptr);


if(TAU_NONE(new_ptr) && new_size > 0) {
fprintf(stderr, "FATAL: tau_realloc failed to allocate %" TAU_PRIu64 " bytes\n",
(tau_u64)new_size);
TAU_ABORT;
}

return new_ptr;
}
#endif // TAU_NO_TESTING
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