Re: CVE-2024-27406: lib/Kconfig.debug: TEST_IOV_ITER depends on MMU

[Michal Koutný]

On Fri, May 17, 2024 at 01:40:41PM GMT, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> BUG: failure at mm/nommu.c:318/vmap()!
> Kernel panic - not syncing: BUG!
> 
> The test calls vmap() directly, but vmap() is not supported on nommu
> systems, causing the crash.  TEST_IOV_ITER therefore needs to depend on
> MMU.

This is fixing mising assumption of a testing module.
The BUG is deserved AFAIU. The CVE should be reverted IMO.


Thanks,
Michal

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