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isisd is crashing when reading a ASLA sub-TLV with Application Identifier Bit Mask length greater than 1 octet. Set a limit of 8 bytes in accordance with RFC9479 and check that the received value does not exceed the limit. Link: https://www.rfc-editor.org/rfc/rfc9479.html#name-application-identifier-bit- Fixes: 5749ac8 ("isisd: add ASLA support") Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
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