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Subjectwarning: ‘memset’ offset [197, 448] fr om the object at ‘boot params’ is out of the bo unds of referenced subobject ‘ext ramdisk image =?UTF-8?B?4oCZIHdpdGggdHlwZSwg4oCYd
Date
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 ‘sanitize_boot_params’,
inlined from ‘copy_bootdata’ at arch/x86/kernel/head64.c:391:2:
./arch/x86/include/asm/bootparam_utils.h:40:3: warning: ‘memset’ offset [197, 448] from the object at ‘boot_params’ is out of the bounds of referenced subobject ‘ext_ramdisk_image’ with type
‘unsigned int’ 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: ‘memset’ offset [493, 497] from the object at ‘boot_params’ is out of the bounds of referenced subobject ‘kbd_status’ with type ‘unsig
ned char’ 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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