[Bug 2004039] [NEW] libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Tobias Heider (tobhe):

[ Impact ]

 * On kernels with page size > 4K xorg (and presumably other applications
   relying on libunwind) crashes on startup. This affects anyone
   running the official arm64 generic-64k kernel or custom non 4k kernels
   (as used by e.g. apple silicon).

[ Test Plan ]

 * Make sure Xorg works on a variety of different archs and kernels with   
   different page sizes. 

[ Where problems could occur ]

 * We will have to make sure the fixed version still works with 4k
   kernels. The patch is already widely in use so the risk seems low if
   we test properly.

[ Other Info ]
 
 * The lunar version ships the bug fix synced from debian 
 
 * Debian bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1026217

 * Upstream fix:
https://github.com/libunwind/libunwind/commit/e85b65cec757ef589f28957d0c6c21c498a03bdf

** Affects: libunwind (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: libunwind (Ubuntu Kinetic)
     Importance: Undecided
         Status: New

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libunwind 1.6.2-0 assumes 4k page sizes and crashes on systems with bigger page sizes
https://bugs.launchpad.net/bugs/2004039
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