warning: âmemsetâ offset [197, 448] from the object at âboot_paramsâ is out of the bounds of referenced subobject âext_ramdisk_imageâ with type, âunsigned intâ at offset 192 [-Warray-bounds]

[Paul Menzel]

Dear Linux folks,


No idea, if you are interested in these reports. Building Linux 5.3-rc4,
GCC 9.2.0 shows the warning below.

```
In file included from arch/x86/kernel/head64.c:35:
In function âsanitize_boot_paramsâ,
    inlined from âcopy_bootdataâ at arch/x86/kernel/head64.c:391:2:
./arch/x86/include/asm/bootparam_utils.h:40:3: warning: âmemsetâ offset [197, 448] from the object at âboot_paramsâ is out of the bounds of referenced subobject âext_ramdisk_imageâ with type
 âunsigned intâ at offset 192 [-Warray-bounds]
   40 |   memset(&boot_params->ext_ramdisk_image, 0,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   41 |          (char *)&boot_params->efi_info -
      |          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   42 |    (char *)&boot_params->ext_ramdisk_image);
      |    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./arch/x86/include/asm/bootparam_utils.h:43:3: warning: âmemsetâ offset [493, 497] from the object at âboot_paramsâ is out of the bounds of referenced subobject âkbd_statusâ with type âunsig
ned charâ at offset 491 [-Warray-bounds]
   43 |   memset(&boot_params->kbd_status, 0,
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   44 |          (char *)&boot_params->hdr -
      |          ~~~~~~~~~~~~~~~~~~~~~~~~~~~
   45 |          (char *)&boot_params->kbd_status);
      |          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```


Kind regards,

Paul

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