/usr/lib/ is in libsefs4 3.3.6.ds-7.2ubuntu4.
This file is owned by root:root, with mode 0o755.
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    /usr/lib/libsefs.so.4.0.2
    
 | application/x-sharedlib | root:root | 0o644 | 99.0 KB | 
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    /usr/lib/libsefs.so.4
    
        
    
 | root:root | 0o777 |