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    • Tobias Stoeckmann's avatar
      Fix out of boundary read. · 9c51a282
      Tobias Stoeckmann authored
      
      
      If a binary file which starts with 0x00 is edited, xrdb performs
      an off-by-one read outside of its buffer.
      
      The fix is simple: Do not try to append an empty string to buffer,
      which would be a no-op anyway.
      
      Proof of Concept (compile with -fsanitize=address):
      
      $ dd if=/dev/zero bs=1 count=1 of=poc.txt
      $ xrdb -edit poc.txt
      Signed-off-by: Tobias Stoeckmann's avatarTobias Stoeckmann <tobias@stoeckmann.org>
      9c51a282
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