Re: [PATCH] x86/microcode/amd: fix uninitalized structure cp

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On Tue, Jan 14, 2020 at 12:03:36PM +0000, Colin Ian King wrote:
> On 14/01/2020 12:01, Borislav Petkov wrote:
> > On Tue, Jan 14, 2020 at 11:51:43AM +0000, Colin Ian King wrote:
> >> Starting at load_ucode_amd_bsp(), this initializes a local cp to zero,
> >> then passes &cp when it calls __load_ucode_amd() as parameter *ret.  In
> >> __load_ucode_amd a new local cp is created on the stack and *only* is
> >> assigned here:
> >>
> >>        if (!get_builtin_microcode(&cp, x86_family(cpuid_1_eax)))
> >>                 cp = find_microcode_in_initrd(path, use_pa);
> > 
> > Is there any case where cp doesn't get assigned here? Either by
> > get_builtin_microcode() or by find_microcode_in_initrd()?
^^^^^^^^^^^^^

You missed this question.

> OK, I will try to extract every special Tag from Coverity and get this
> documented when I get some spare cycles.

tglx just explained to me the whole situation about coverity.

I'm not asking about extracting special tags but rather about a
couple of sentences somewhere in Documentation/ explaining what
Addresses-Coverity* means for the unenlightened among us and how one can
find further invormation.

Reportedly, there's even a web page with the tags somewhere...

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette



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