On Fri, Apr 17, 2026 at 03:41:39PM +0300, Mike Rapoport wrote: > Yeah, the issue though is that open() succeeds regardless of PROC_MEM_ > setting in Kconfig. With restricted /proc/pid/mem the failure happens in > write(), and there we don't know what actually went wrong.
> We can try checking errno, but it's fragile and it's better to fail the > test if write() failed IMO. Oh, that's unfortunate - you'd have hoped that opening for write would fail if you can't write. In that case you're probably right that we can't do much better, possibly adding a log message about the potential missing config but not sure that's worth it.
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