[Scummvm-tracker] [ScummVM :: Bugs] #15179: AGS: lzwexpand SIGBUS on strict-alignment archs

[ScummVM :: Bugs]

#15179: AGS: lzwexpand SIGBUS on strict-alignment archs
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Reporter:  dwatteau                 |       Owner:  (none)
    Type:  defect                   |      Status:  new
Priority:  normal                   |   Component:  Engine: AGS
 Version:                           |  Resolution:
Keywords:  strict-alignment,sigbus  |        Game:
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Comment (by dwatteau):

 FWIW, this was also caught by UBSan on regular x86:

 {{{
 engines/ags/shared/util/lzw.cpp:225:32: runtime error: load of misaligned
 address 0x5e50b242f227 for type 'const int16_t', which requires 2 byte
 alignment
 0x5e50b242f227: note: pointer points here
  00 00 c8 00 00  d0 00 d0 ff 00 d0 00 d0  00 d0 00 d0 00 d0 00 d0  00 d0
 00 d0 ff 00 d0 00  d0 00 d0
              ^

 }}}

 I've just opened Github PR https://github.com/scummvm/scummvm/pull/6185
 which fixes the issue with Maniac Mansion Deluxe, here.
-- 
Ticket URL: <https://bugs.scummvm.org/ticket/15179#comment:1>
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