NACK: [SRU][N][PATCH 0/1] CVE-2024-50287

[Koichiro Den]

On Thu, Mar 13, 2025 at 02:11:03PM GMT, Andrei Gherzan wrote:
> [Impact]
> 
> media: v4l2-tpg: prevent the risk of a division by zero
> As reported by Coverity, the logic at tpg_precalculate_line()
> blindly rescales the buffer even when scaled_witdh is equal to
> zero. If this ever happens, this will cause a division by zero.
> 
> Instead, add a WARN_ON_ONCE() to trigger such cases and return
> without doing any precalculation.
> 
> [Fix]
> 
> Noble:  The fix applies cleanly.
> 
> [Test Case]
> 
> * Build test for all supported architectures.
> * Boot tested on amd64 architecture.
> 
> [Where problems could occur]
> 
> The change could affect users of V4L2 Test Pattern Generator support.
> 
> Mauro Carvalho Chehab (1):
>   media: v4l2-tpg: prevent the risk of a division by zero
> 
>  drivers/media/common/v4l2-tpg/v4l2-tpg-core.c | 3 +++
>  1 file changed, 3 insertions(+)
> 

This commit was included in an upstream stable patchset (LP: #2100292),
which was applied to master-next exactly on the same day as your
submission:
https://lists.ubuntu.com/archives/kernel-team/2025-March/157999.html

Please let me NACK this for that reason.