* 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]
@ 2019-08-13 16:15 Paul Menzel
2019-08-15 12:43 ` Greg KH
0 siblings, 1 reply; 4+ messages in thread
From: Paul Menzel @ 2019-08-13 16:15 UTC (permalink / raw)
To: x86; +Cc: Linux Kernel Mailing List
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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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^ permalink raw reply [flat|nested] 4+ messages in thread* Re: 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]
2019-08-13 16:15 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] Paul Menzel
@ 2019-08-15 12:43 ` Greg KH
2019-08-15 12:54 ` Thomas Gleixner
0 siblings, 1 reply; 4+ messages in thread
From: Greg KH @ 2019-08-15 12:43 UTC (permalink / raw)
To: Paul Menzel; +Cc: x86, Linux Kernel Mailing List
On Tue, Aug 13, 2019 at 06:15:51PM +0200, Paul Menzel wrote:
> 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);
> | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ```
Yeah, it shows up on my builds as well :(
Any chance you can make a fix for this?
thanks,
greg k-h
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 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]
2019-08-15 12:43 ` Greg KH
@ 2019-08-15 12:54 ` Thomas Gleixner
2019-08-15 13:19 ` Greg KH
0 siblings, 1 reply; 4+ messages in thread
From: Thomas Gleixner @ 2019-08-15 12:54 UTC (permalink / raw)
To: Greg KH; +Cc: Paul Menzel, x86, Linux Kernel Mailing List
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On Thu, 15 Aug 2019, Greg KH wrote:
> On Tue, Aug 13, 2019 at 06:15:51PM +0200, Paul Menzel wrote:
> > 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);
> > | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > ```
>
> Yeah, it shows up on my builds as well :(
>
> Any chance you can make a fix for this?
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?h=x86/boot&id=a156cadef2fe445ac423670eace517b39a01ccd0
I guess I need to reprioritize that and mark it for stable....
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 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]
2019-08-15 12:54 ` Thomas Gleixner
@ 2019-08-15 13:19 ` Greg KH
0 siblings, 0 replies; 4+ messages in thread
From: Greg KH @ 2019-08-15 13:19 UTC (permalink / raw)
To: Thomas Gleixner; +Cc: Paul Menzel, x86, Linux Kernel Mailing List
On Thu, Aug 15, 2019 at 02:54:32PM +0200, Thomas Gleixner wrote:
> On Thu, 15 Aug 2019, Greg KH wrote:
> > On Tue, Aug 13, 2019 at 06:15:51PM +0200, Paul Menzel wrote:
> > > 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);
> > > | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > > ```
> >
> > Yeah, it shows up on my builds as well :(
> >
> > Any chance you can make a fix for this?
>
> https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?h=x86/boot&id=a156cadef2fe445ac423670eace517b39a01ccd0
>
> I guess I need to reprioritize that and mark it for stable....
Please do, it's the only build warning I currently have for
'allmodconfig' on x86 for 4.14.y, 4.19.y, and 5.2.y and is annoying :)
thanks,
greg k-h
^ permalink raw reply [flat|nested] 4+ messages in thread
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2019-08-13 16:15 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] Paul Menzel
2019-08-15 12:43 ` Greg KH
2019-08-15 12:54 ` Thomas Gleixner
2019-08-15 13:19 ` Greg KH
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