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Joined 2 years ago
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Cake day: June 16th, 2023

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  • Mprotect stops any read and write and execute access to memory in both user and kernel lands (only rx or wx). Stuff like web browsers won’t work unless you have a program to mark it in elf to not use pax. However, this kills a lot of exploits with that turned on by itself (though there are probably work arounds if you are developing exploits which the other features would hopefully catch). That’s why people installed 3rd party unmainlined security patches, but that’s just me maybe idk.

    I am having a hard time following what this does or why this is desirable. You’re saying there’s a patch this thing provides that … disables memory access … unless a flag is set in an executable … which will then bypass the security?







  • You are a fintech dev using floating point? And your advice is to encode things as strings?

    This is why I got out of fintech.

    (I am sorry, I know there are horrors and I am sure I am not familiar with your exact scenario.)

    Edit: just for anyone who passes by: try to stick with integers in a currency’s smallest unit of division. (This is only one small bit of this problem, but the number of times I have seen currency values in floating point makea me psychotic.)



  • I get the joke.

    But if, like me, you actually feel this here’s how I got away from it: make sure you actually understand things.

    Read the error message over and over again, look up the words, understand what it is saying.

    If something isn’t working, start reading the code and making sure you understand what each line is doing.

    It will feel incredibly slow and painful at first. Eventually you will strengthen those.muscles, however, and it’ll become second nature.

    Then you can cut and paste with confidence! 🤣