Your bug report

#25494: sed 4.3-1 segmentation fault (core dumped) : Error in `sed': realloc(): invalid next size: 0x000000000209aed0 ***

which was filed against the sed package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 25494@debbugs.gnu.org.

-- 
25494: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=25494
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