AppArmor: it's baaaaaaack
[Posted September 23, 2009 by corbet]
The AppArmor security module has had a difficult life - even considering
that security modules tend to have a hard path into the mainline in
general. Its
pathname-based approach concerned numerous developers, and its
implementation caused the net to echo with NACKs. Eventually, its core
developers lost their jobs and moved on to other pursuits, some
distributors lost interest, and AppArmor disappeared from
view. Meanwhile, the pathname-based TOMOYO Linux module managed to
overcome the hurdles and get into the mainline.
Speaking at LinuxCon, your editor stated that he did not know if AppArmor
would come back or not. The next day, a new set of AppArmor patches
was posted by John Johansen. Interestingly, John works at Canonical, so
AppArmor, should it get into the mainline, could well become one of that
company's largest contributions to the kernel. Its chances of merger
should be better now; TOMOYO Linux has broken down the barriers to
pathname-based mandatory access control, and AppArmor uses the new security
module hooks which were added to support TOMOYO. As of this writing,
though, there have been no reviews posted, so anything could still happen.
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