[PATCH] scripts: kconfig: fix deref after null in menu.c

[Tom Rini]

On Fri, May 16, 2025 at 05:56:11PM +0300, ant.v.moryakov at gmail.com wrote:

> From: Anton Moryakov <ant.v.moryakov at gmail.com>
> 
> Static analyzer detected a potential NULL pointer dereference when 'sym'
> pointer is passed to for_all_prompts() and other functions after being
> checked for NULL earlier in the function.
> 
> The issue could occur when called from gstr get_relations_str() with
> NULL symbol pointer.
> 
> Changes made:
> 1. Added early return if sym is NULL or has no name
> 2. Added NULL checks before all sym pointer dereferences
> 3. Maintained existing functionality for valid symbols
> 
> Signed-off-by: Anton Moryakov <ant.v.moryakov at gmail.com>
> ---
>  scripts/kconfig/menu.c | 12 +++++++++---
>  1 file changed, 9 insertions(+), 3 deletions(-)

Since this comes from the linux kernel, please see if it's a problem
there still (and report it please) or backport the fix, thanks.

-- 
Tom
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