Re: [PATCH] selftests/capabilities: Fix possible file leak in copy_fromat_to
From: Markus Elfring
Date: Wed Jun 26 2024 - 09:19:20 EST
> … openat() and open() initialize
> 'from' and 'to', and only 'from' validated with 'if' statement.
Why do find such information helpful?
> If the
> initialization of variable 'to' fails,
The variable assignment will usually succeed.
A stored return value would eventually indicate a failed function call.
> we should better check the value
> of 'to' and close 'from' to avoid possible file leak.
Please improve the change description with an imperative wording.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.10-rc5#n94
How do you think about to use a summary phrase like “Complete error handling
in copy_fromat_to()”?
…
> ---
> Found this error through static analysis.
> ---
* Were any special tools involved?
* Would you like to replace a duplicate marker line by a blank line?
Regards,
Markus