In the Linux kernel, the following vulnerability has been resolved: media: s5p_cec: limit msg.len to CEC_MAX_MSG_SIZE I expect that the hardware will have limited this to 16, but just in case it hasn't, check for this corner case.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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