[LTP] futex_wake05: Add EFAULT error coverage test

[linuxtestproject.agent@gmail.com]

Hi Michael,

On Tue, 16 Jun 2026, Michael Menasherov wrote:
> futex_cmp_requeue03: Add EFAULT error coverage test

--- [PATCH 2/2] ---

> futex(FUTEX_CMP_REQUEUE) has no existing test for EFAULT. Add coverage
> for the cases where uaddr or uaddr2 points to unmapped or inaccessible
> (PROT_NONE) memory.

The commit message says "uaddr or uaddr2 points to ... inaccessible
(PROT_NONE) memory", but the test only covers uaddr with PROT_NONE.
There is no "uaddr2 PROT_NONE" test case. Since get_futex_key() is
called independently for uaddr2, it would be consistent to add
coverage for that case too, or alternatively narrow the commit
message to match what is actually tested.

Verdict - Needs revision

---
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