Messages in this thread | | | From | Linus Torvalds <> | Date | Mon, 16 Nov 2020 10:09:28 -0800 | Subject | Re: [RESEND][PATCH] ima: Set and clear FMODE_CAN_READ in ima_calc_file_hash() |
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On Mon, Nov 16, 2020 at 9:41 AM Christoph Hellwig <hch@infradead.org> wrote: > > The "issue" with IMA is that it uses security hooks to hook into the > VFS and then wants to read every file that gets opened on a real file > system to "measure" the contents vs a hash stashed away somewhere.
Well, but that's easy enough to handle: if the open isn't a read open, then the old contents don't matter, so you shouldn't bother to measure the file.
So this literally sounds like a "doctor, doctor, it hurts when I hit my head with a hammer" situation..
Linus
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