[Bug dynamic-link/27008] New: ld.so.cache should have endianness markup

[Bug dynamic-link/27008] New: ld.so.cache should have endianness markup

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27008

            Bug ID: 27008
           Summary: ld.so.cache should have endianness markup
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: minor
          Priority: P2
         Component: dynamic-link
          Assignee: unassigned at sourceware dot org
          Reporter: fweimer at redhat dot com
  Target Milestone: ---
             Flags: security-

With qemu-user, it's common that a process of the wrong endianness tries to
parse ld.so.cache. For performance reasons, the consistency checks are somewhat
limited, so crashes can be the result.

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug dynamic-link/27008] ld.so.cache should have endianness markup

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27008

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |fweimer at redhat dot com
           See Also|                            |https://launchpad.net/bugs/
                   |                            |1906250
           Assignee|unassigned at sourceware dot org   |fweimer at redhat dot com

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug dynamic-link/27008] ld.so.cache should have endianness markup

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27008

--- Comment #1 from Florian Weimer <fweimer at redhat dot com> ---
Patch: https://sourceware.org/pipermail/libc-alpha/2020-November/119447.html

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug dynamic-link/27008] ld.so.cache should have endianness markup

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27008

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED
   Target Milestone|---                         |2.33

--- Comment #2 from Florian Weimer <fweimer at redhat dot com> ---
Fixed for glibc 2.33 via:

commit 84ba719b260551918965d0a433914de683087645
Author: Florian Weimer <fweimer@redhat.com>
Date:   Fri Dec 4 09:13:43 2020 +0100

    elf: Add endianness markup to ld.so.cache (bug 27008)

    Use a reserved byte in the new format cache header to indicate whether
    the file is in little endian or big endian format.  Eventually, this
    information could be used to provide a unified cache for qemu-user
    and similiar scenarios.

    Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug dynamic-link/27008] ld.so.cache should have endianness markup

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27008

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://sourceware.org/bugz
                   |                            |illa/show_bug.cgi?id=22825

-- 
You are receiving this mail because:
You are on the CC list for the bug.