On Fri, 18 Nov 2016 12:24:37 +0100, Dmitry Vyukov said: > WARNINGs mean kernel bugs. > The one in ucma_write() points to user programming error > or a malicious attempt. This is not a kernel bug, remove it.
> - if (WARN_ON_ONCE(!ib_safe_file_access(filp))) > + if (!ib_safe_file_access(filp)) > return -EACCES; In that case, wouldn't this be better? if (!ib_safe_file_access(filp)) { printk_once("Process %d (%s) tried to do something hinky", pid, comm); return _EACCESS; } so the sysadmin becomes aware of the malicious attempt?
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