Hi Linus,
Linus Torvalds wrote:
I did a slight modification of the patch I committed initially, in the
face of the report from Marcel that the initial sledge-hammer approach
broke his hald setup.
See commit 9ee8ab9fbf21e6b87ad227cd46c0a4be41ab749b: "Relax /proc fix a
bit", which should still fix the bug (can somebody verify? I'm 100% sure,
but still..), but is pretty much guaranteed to not have any secondary side
effects.
It still leaves the whole issue of whether /proc should honor chmod AT ALL
open, and I'd love to close that one, but from a "minimal fix" standpoint,
I think it's a reasonable (and simple) patch.
Marcel, can you check current git?
I can confirm that the new fix prevents the exploit from working, with
no immediately visible side effects.
Thanks,
Daniel
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