[Bug 13496] bb_unsetenv maybe free a NULL memory

bugzilla at busybox.net bugzilla at busybox.net
Sat Feb 6 10:43:53 UTC 2021


https://bugs.busybox.net/show_bug.cgi?id=13496

Bernhard Reutner-Fischer <aldot at uclibc.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #2 from Bernhard Reutner-Fischer <aldot at uclibc.org> ---
ISO-IEC 9899, 7.20.3.2 free()

2 ... If ptr is a null pointer, no action occurs.

It is perfectly fine to free(NULL).

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