Stack addresses (source) may be assigned to non-local variables

[szsam]

https://github.com/symisc/PH7/blob/c9cde8652331559a3e470b42d9705a56f73aaa31/ph7.c#L38377-L38392
The address of local variable result is assigned to non-local variables pA->pNext and pB->pNext.
Storing the address of a local variable in non-local memory can cause a dangling pointer bug if the address is used after the function returns.