On Wed, 13 May 2020, Patrick Donnelly wrote: > However, it seems odd that this depends on the owner of the directory. > i.e. this protection only seems to be enforced if the sticky directory > is owned by root. That's expected?
According to the documentation[0] this appears to be intentional: protected_regular: [...] When set to "1" don't allow O_CREAT open on regular files that we don't own in world writable sticky directories, unless they are owned by the owner of the directory. C. [0] https://www.kernel.org/doc/Documentation/sysctl/fs.txt -- BOFH excuse #263: It's stuck in the Web.
