[Bug dynamic-link/22723] SIGSEGV from unchecked NULL in DT_INIT_ARRAY during dlopen

[joseph at codesourcery dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=22723

--- Comment #3 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
The glibc rule is that if a pointer is required to be valid, just 
dereferencing it is appropriate - a segfault is sufficient defence if a 
(by definition buggy) program passes a null pointer there.

https://sourceware.org/glibc/wiki/Style_and_Conventions#Error_Handling

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