[RFC PATCH 6/8] KEYS: Prevent overflow of user->qnbytes in key_alloc()

[sashiko-bot at kernel.org]

> Add the missing check rejecting resulting byte counts above INT_MAX.
> 
> Cc: stable at vger.kernel.org
> Assisted-by: LLM
> Fixes: 7e047ef5fe2d ("[PATCH] keys: sort out key quota system")
> Signed-off-by: Jarkko Sakkinen <jarkko at kernel.org>

Sashiko has reviewed this patch and found no issues.

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