[GHC] #10826: [Security] Safe Haskell can be bypassed via annotations

[GHC]

#10826: [Security] Safe Haskell can be bypassed via annotations
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        Reporter:  spinda            |                   Owner:  kanetw
            Type:  bug               |                  Status:  patch
        Priority:  highest           |               Milestone:  7.10.3
       Component:  Compiler          |                 Version:  7.10.2
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  GHC accepts       |  Unknown/Multiple
  invalid program                    |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:  phab:D1226
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Comment (by Austin Seipp <austin@…>):

 In [changeset:"4356dacb4a2ae29dfbd7126b25b72d89bb9db1b0/ghc" 4356dac/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="4356dacb4a2ae29dfbd7126b25b72d89bb9db1b0"
 Forbid annotations when Safe Haskell safe mode is enabled.

 For now, this fails compliation immediately with an error. If desired,
 this
 can be a warning that annotations in Safe Haskell are ignored.

 Signed-off-by: David Kraeutmann <kane at kane.cx>

 Reviewed By: goldfire, austin

 Differential Revision: https://phabricator.haskell.org/D1226

 GHC Trac Issues: #10826
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10826#comment:12>
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