Daniel Axtens 20ab8cb44b fs/nilfs2: Reject too-large keys
NILFS2 has up to 7 keys, per the data structure. Do not permit array
indices in excess of that.

This catches some OOB reads. I don't know how controllable the invalidly
read data is or if that could be used later in the program.

Signed-off-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2021-03-02 15:54:18 +01:00
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