/etc/kernel/ is in update-notifier-common 0.154.1.
This file is owned by root:root, with mode 0o755.
| File | Mime Type | Owner | Mode | Size | 
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    ..
    
        
    
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    /etc/kernel/postinst.d/
    
        
    
 | root:root | 0o755 | ||
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    /etc/kernel/postinst.d/update-notifier
    
        
    
 | root:root | 0o777 |