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What is securityfs?



The 2019 Stack Overflow Developer Survey Results Are Inwhat is inode for, in FreeBSD or SolarisHow to set up ZFS with ZIL and L2ARC SSD?Invoking memory compaction on linux 2.6.35 kernels and beyondStatic files give ever changing checksum value on LinuxTune write disk cache flushing algorithmDifferences between dd in Mac OS X and LinuxHow does Linux manage “simultaneous” writes to swap/disk partitions in virtual memory?What is the terminology for raw writes to block devices?Everything is file or process - LinuxAre file edits in Linux directly saved into disk?



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8















While I am studying, I saw security file system which is mounted on /sys/kernel/security . It seems like to operate similar to sysfs or proc file system. Security file system keeps data on memory not in disk, so when write something into the file in securityfs it does not actually write to disk just update data in memory.



What I am wondering is why the name of this file system is securityfs?
Is there any security enhance ability in this file system?










share|improve this question






















  • lwn.net/Articles/153366 might be of interest

    – muru
    Oct 14 '16 at 4:24

















8















While I am studying, I saw security file system which is mounted on /sys/kernel/security . It seems like to operate similar to sysfs or proc file system. Security file system keeps data on memory not in disk, so when write something into the file in securityfs it does not actually write to disk just update data in memory.



What I am wondering is why the name of this file system is securityfs?
Is there any security enhance ability in this file system?










share|improve this question






















  • lwn.net/Articles/153366 might be of interest

    – muru
    Oct 14 '16 at 4:24













8












8








8








While I am studying, I saw security file system which is mounted on /sys/kernel/security . It seems like to operate similar to sysfs or proc file system. Security file system keeps data on memory not in disk, so when write something into the file in securityfs it does not actually write to disk just update data in memory.



What I am wondering is why the name of this file system is securityfs?
Is there any security enhance ability in this file system?










share|improve this question














While I am studying, I saw security file system which is mounted on /sys/kernel/security . It seems like to operate similar to sysfs or proc file system. Security file system keeps data on memory not in disk, so when write something into the file in securityfs it does not actually write to disk just update data in memory.



What I am wondering is why the name of this file system is securityfs?
Is there any security enhance ability in this file system?







linux filesystems security sysfs procfs






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Oct 14 '16 at 4:11









JuHyung SonJuHyung Son

729




729












  • lwn.net/Articles/153366 might be of interest

    – muru
    Oct 14 '16 at 4:24

















  • lwn.net/Articles/153366 might be of interest

    – muru
    Oct 14 '16 at 4:24
















lwn.net/Articles/153366 might be of interest

– muru
Oct 14 '16 at 4:24





lwn.net/Articles/153366 might be of interest

– muru
Oct 14 '16 at 4:24










1 Answer
1






active

oldest

votes


















2














Here are some links regarding securityfs:



  • A post from the author of securityfs


  • Article about PipeFS, SockFS, DebugFS, and SecurityFS.


The author stats:




This filesystem is meant to be used by security modules, some of which
were otherwise creating their own filesystems.




So I guess the name comes from the Linux Security Modules (LSM).






share|improve this answer

























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    1 Answer
    1






    active

    oldest

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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    2














    Here are some links regarding securityfs:



    • A post from the author of securityfs


    • Article about PipeFS, SockFS, DebugFS, and SecurityFS.


    The author stats:




    This filesystem is meant to be used by security modules, some of which
    were otherwise creating their own filesystems.




    So I guess the name comes from the Linux Security Modules (LSM).






    share|improve this answer





























      2














      Here are some links regarding securityfs:



      • A post from the author of securityfs


      • Article about PipeFS, SockFS, DebugFS, and SecurityFS.


      The author stats:




      This filesystem is meant to be used by security modules, some of which
      were otherwise creating their own filesystems.




      So I guess the name comes from the Linux Security Modules (LSM).






      share|improve this answer



























        2












        2








        2







        Here are some links regarding securityfs:



        • A post from the author of securityfs


        • Article about PipeFS, SockFS, DebugFS, and SecurityFS.


        The author stats:




        This filesystem is meant to be used by security modules, some of which
        were otherwise creating their own filesystems.




        So I guess the name comes from the Linux Security Modules (LSM).






        share|improve this answer















        Here are some links regarding securityfs:



        • A post from the author of securityfs


        • Article about PipeFS, SockFS, DebugFS, and SecurityFS.


        The author stats:




        This filesystem is meant to be used by security modules, some of which
        were otherwise creating their own filesystems.




        So I guess the name comes from the Linux Security Modules (LSM).







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited yesterday









        Torxed

        1,26641737




        1,26641737










        answered Jan 3 '18 at 16:14









        AlexAlex

        4021515




        4021515



























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