[Bug 216137] New: Kernel Will Not Compile using GCC 12.1

[Bug 216137] New: Kernel Will Not Compile using GCC 12.1

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=216137

            Bug ID: 216137
           Summary: Kernel Will Not Compile using GCC 12.1
           Product: Virtualization
           Version: unspecified
    Kernel Version: 5.18.0 through 5.18.4
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: blocking
          Priority: P1
         Component: kvm
          Assignee: virtualization_kvm@kernel-bugs.osdl.org
          Reporter: nanook@eskimo.com
        Regression: No

I've filed a bug on previous versions but it appears to have disappeared from
the system, at least I can not find it with the search tool.

Using gcc 12.1, 5.18.0 through 5.18.4 fails to compile all with this same error
in the kvm section:

 dpkg-source --before-build .
 debian/rules binary
In function ‘reg_read’,
    inlined from ‘reg_rmw’ at arch/x86/kvm/emulate.c:266:2:
arch/x86/kvm/emulate.c:254:27: error: array subscript 32 is above array bounds
of ‘long unsigned int[17]’ [-Werror=array-bounds]
  254 |         return ctxt->_regs[nr];
      |                ~~~~~~~~~~~^~~~
In file included from arch/x86/kvm/emulate.c:23:
arch/x86/kvm/kvm_emulate.h: In function ‘reg_rmw’:
arch/x86/kvm/kvm_emulate.h:366:23: note: while referencing ‘_regs’
  366 |         unsigned long _regs[NR_VCPU_REGS];
      |                       ^~~~~
cc1: all warnings being treated as errors
make[5]: *** [scripts/Makefile.build:288: arch/x86/kvm/emulate.o] Error 1
make[4]: *** [scripts/Makefile.build:550: arch/x86/kvm] Error 2
make[3]: *** [Makefile:1834: arch/x86] Error 2
make[2]: *** [debian/rules:7: build-arch] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
make[1]: *** [scripts/Makefile.package:83: bindeb-pkg] Error 2
make: *** [Makefile:1542: bindeb-pkg] Error 2

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[Bug 216137] Kernel Will Not Compile using GCC 12.1

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=216137

--- Comment #1 from Robert Dinse (nanook@eskimo.com) ---
This has really become more urgent now that 5.17 has become EOL.

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[Bug 216137] Kernel Will Not Compile using GCC 12.1

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=216137

Artem S. Tashkinov (aros@gmx.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #2 from Artem S. Tashkinov (aros@gmx.com) ---


*** This bug has been marked as a duplicate of bug 216026 ***

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