OSCL/Deflate
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Ensure sliding window buffer is 0 initialized

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Avoids data leakage for invalid backreference to non-written output in
deflate streams.
This commit is contained in:
Pierre R. Mai
2023-05-22 09:18:13 +02:00
parent dbdeb3825a
commit 37b8d92872
1 changed files with 1 additions and 1 deletions
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2
deflate.lisp
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@ -197,7 +197,7 @@
(defstruct sliding-window-stream (defstruct sliding-window-stream
(stream nil :type stream :read-only t) (stream nil :type stream :read-only t)
(buffer (make-array +sliding-window-size+ :element-type '(unsigned-byte 8)) (buffer (make-array +sliding-window-size+ :element-type '(unsigned-byte 8) :initial-element 0)
:type (simple-array (unsigned-byte 8) (#.+sliding-window-size+)) :read-only t) :type (simple-array (unsigned-byte 8) (#.+sliding-window-size+)) :read-only t)
(buffer-end 0 :type fixnum) (buffer-end 0 :type fixnum)
(checksum nil :type symbol :read-only t) (checksum nil :type symbol :read-only t)