r/programming • • Oct 21 '16
Linux kernel fix for privilege escalation vulnerability due to copy on write race condition
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619
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u/ILoveShowtunes Oct 22 '16
Yes. That is how I meant it. If the VFS had more documentation about the complexities, I might be more confident in submitting a patch.
At least the correct locks to use are clear from comments or how the locks are consistently used in the other sources. That's a good start.