Re: [PATCH] kunit/overflow: Fix UB in overflow_allocation_test
From: Andrew Morton
Date: Thu Aug 15 2024 - 19:01:54 EST
On Thu, 15 Aug 2024 01:04:31 +0100 Ivan Orlov <ivan.orlov0322@xxxxxxxxx> wrote:
> The 'device_name' array doesn't exist out of the
> 'overflow_allocation_test' function scope. However, it is being used as
> a driver name when calling 'kunit_driver_create' from
> 'kunit_device_register'. It produces the kernel panic with KASAN
> enabled.
>
> Since this variable is used in one place only, remove it and pass the
> device name into kunit_device_register directly as an ascii string.
Fixes: ca90800a91ba ("test_overflow: Add memory allocation overflow tests")
Cc: <stable@xxxxxxxxxxxxxxx>
yes?
I'll grab it now, but perhaps Kees will handle this.