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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-12 17:00:53 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-12 17:00:53 -0800
commit277642dcca765a1955d4c753a5a315ff7f2eb09d (patch)
tree6443f09ef88b26e8742bf1abfb2ee4c71fb91a39 /kernel/kallsyms.c
parent9d5604101e40c1d9d020384de11f0d68398c8844 (diff)
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modules: make sysfs attribute files readable by owner only
This code goes back to the historical bitkeeper tree commit 3f7b0672086 ("Module section offsets in /sys/module"), where Jonathan Corbet wanted to show people how to debug loadable modules. See https://lwn.net/Articles/88052/ from June 2004. To expose the required load address information, Jonathan added the sections subdirectory for every module in /sys/modules, and made them S_IRUGO - readable by everybody. It was a more innocent time, plus those S_IRxxx macro names are a lot more confusing than the octal numbers are, so maybe it wasn't even intentional. But here we are, thirteen years later, and I'll just change it to S_IRUSR instead. Let's see if anybody even notices. Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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