[Bug 2018293] Re: [UBUNTU 20.04] Crash in zlib deflateBound() function on s390x

[Frank Heimes]

** Package changed: linux (Ubuntu) => zlib (Ubuntu)

** Also affects: ubuntu-z-systems
   Importance: Undecided
       Status: New

** Changed in: ubuntu-z-systems
     Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team)

** Changed in: zlib (Ubuntu)
   Importance: Undecided => Medium

** Changed in: ubuntu-z-systems
   Importance: Undecided => Medium

** Changed in: zlib (Ubuntu)
     Assignee: Skipper Bug Screeners (skipper-screen-team) => (unassigned)

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Title:
  [UBUNTU 20.04] Crash in zlib deflateBound() function on s390x

Status in Ubuntu on IBM z Systems:
  New
Status in zlib package in Ubuntu:
  New

Bug description:
  Problem Description:
  zlib deflateBound() function can crash on s390x when called before deflateInit().

  Solution: 
  zlib on s390x needs to support calling deflateBound() before deflateInit().

  The fix is squashed into the latest DFLTCC PR:
  https://github.com/madler/zlib/pull/410

  Diff:
  https://github.com/madler/zlib/compare/113203437eda67261848b14b6c80a33ff7e33d34..f6d382a91a4e7d88b9b12ce0ecdffb1783878160

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