wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory
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Calling wordexp with WRDE_REUSE in conjunction with WRDE_APPEND in the GNU C Library version 2.0 to version 2.42 may cause the interface to return uninitialized memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
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