[LTP] Avoid syscall param ioctl(generic) points to uninitialised byte(s)

[linuxtestproject.agent@gmail.com]

Hi Martin,

our agent completed the review of the patch.

The agent can sometimes produce false positives although often its
findings are genuine. If you find issues with the review, please
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On Wed, 20 Jan 2038, Martin Cermak wrote:
> Avoid syscall param ioctl(generic) points to uninitialised byte(s)

The subject is a raw Valgrind diagnostic string, not a commit subject.
Name the component and the fix, e.g.:
  userfaultfd01: initialize uffdio_register to avoid uninitialized bytes

> lib/tst_clocks.c: fix uninitialized memory in run()  Reproducible
>                   using userfaultfd01.

The file named here (lib/tst_clocks.c) is not the file changed by this
patch; the actual change is in
testcases/kernel/syscalls/userfaultfd/userfaultfd01.c. Please correct
this and explain why uffdio_register was uninitialized (the ioctls field
is not set before UFFDIO_REGISTER is called).

Regards,
LTP AI Reviewer