Re: mainline build failure due to df8fc4e934c1 ("kbuild: Enable -fstrict-flex-arrays=3")

[Linux regression tracking (Thorsten Leemhuis)]

On 29.06.23 16:09, Gustavo A. R. Silva wrote:
> 
> Thanks for the report. See my comments below.

Thx for your reply.

> On 6/29/23 07:53, Sudip Mukherjee (Codethink) wrote:
>>
>> The latest mainline kernel branch fails to build with clang (version
>> 16.0.1), and the errors are like:
>>
>> drivers/scsi/aacraid/commsup.c:1170:17: error: array index 1 is past
>> the end of the array (that has type 'u8[1]' (aka 'unsigned char[1]'),
>> cast to '__le32 *' (aka 'unsigned int *')) [-Werror,-Warray-bounds]
>>                                  (((__le32 *)aifcmd->data)[1] ==
>> cpu_to_le32(3));
>>                                              ^             ~
> [...]
> These are addressed by this patch:
> https://lore.kernel.org/linux-hardening/65907ee4083de62fbaadc5c2e6512e3828912d1b.1687974498.git.gustavoars@xxxxxxxxxx/
> 
> in this series (for which I'll send v2 shortly):
> https://lore.kernel.org/linux-hardening/62386518-4123-db1f-4656-6b4ea509f5b1@xxxxxxxxxxxxxx/T/

Are those fixes still on track? Looks like there was not much progress
since then, so I suspect this won't be fixed before -rc1? Or did miss
something?

Ciao, Thorsten

> [...]
>>
>> git bisect pointed to df8fc4e934c1 ("kbuild: Enable
>> -fstrict-flex-arrays=3").
>>
>> Reverting the commit has fixed the build failure.
>>
>> I will be happy to test any patch or provide any extra log if needed.
>>
>> #regzbot introduced: df8fc4e934c12b906d08050d7779f292b9c5c6b5
>>
>>
> 
>