[Buildroot] [Bug 14826] New: make qemu_x86_64_defconfig stopped working

[bugzilla@busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=14826

            Bug ID: 14826
           Summary: make qemu_x86_64_defconfig stopped working
           Product: buildroot
           Version: 2022.02.2
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned@buildroot.uclibc.org
          Reporter: buildroot@apitman.com
                CC: buildroot@uclibc.org
  Target Milestone: ---

Runnning

make qemu_x86_64_defconfig; make clean all

has stopped working for me. I get the following compilation error:



In file included from sigchain.c:3:
In function 'xrealloc',
    inlined from 'sigchain_push.isra' at sigchain.c:26:2:
subcmd-util.h:56:23: error: pointer may be used after 'realloc'
[-Werror=use-after-free]
   56 |                 ret = realloc(ptr, size);
      |                       ^~~~~~~~~~~~~~~~~~
subcmd-util.h:52:21: note: call to 'realloc' here
   52 |         void *ret = realloc(ptr, size);
      |                     ^~~~~~~~~~~~~~~~~~
subcmd-util.h:58:31: error: pointer may be used after 'realloc'
[-Werror=use-after-free]
   58 |                         ret = realloc(ptr, 1);
      |                               ^~~~~~~~~~~~~~~
subcmd-util.h:52:21: note: call to 'realloc' here
   52 |         void *ret = realloc(ptr, size);
      |                     ^~~~~~~~~~~~~~~~~~
  CC      scripts/mod/empty.o
  HOSTCC  scripts/mod/mk_elfconfig
  CC      scripts/mod/devicetable-offsets.s
In function 'xrealloc',
    inlined from 'sigchain_push' at sigchain.c:26:2,
    inlined from 'sigchain_push_common' at sigchain.c:53:2:
subcmd-util.h:56:23: error: pointer may be used after 'realloc'
[-Werror=use-after-free]
   56 |                 ret = realloc(ptr, size);
      |                       ^~~~~~~~~~~~~~~~~~
subcmd-util.h:52:21: note: call to 'realloc' here
   52 |         void *ret = realloc(ptr, size);
      |                     ^~~~~~~~~~~~~~~~~~
subcmd-util.h:58:31: error: pointer may be used after 'realloc'
[-Werror=use-after-free]
   58 |                         ret = realloc(ptr, 1);
      |                               ^~~~~~~~~~~~~~~
subcmd-util.h:52:21: note: call to 'realloc' here
   52 |         void *ret = realloc(ptr, size);
      |                     ^~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

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