[Bug libc/19408] New: linux personality syscall wrapper may erroneously return an error on 32-bit architectures

["ldv at altlinux dot org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=19408

            Bug ID: 19408
           Summary: linux personality syscall wrapper may erroneously
                    return an error on 32-bit architectures
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: ldv at altlinux dot org
          Reporter: ldv at altlinux dot org
                CC: drepper.fsp at gmail dot com
  Target Milestone: 2.23

While personality syscall is always successful on 32-bit architectures
nowadays, the syscall wrapper may return an error.
For example, personality((unsigned) -EINVAL) will make any subsequent
personality call, including absolutely harmless read-only
personality(0xffffffff) call, return -1 with errno set to EINVAL.

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