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authorJohannes Berg <johannes@sipsolutions.net>2008-04-04 17:33:37 -0400
committerJohn W. Linville <linville@tuxdriver.com>2008-04-08 16:44:43 -0400
commitbebb8a5e2cd30adcc5e9a14c3366a231da728aee (patch)
treed4965ea266e0415ecea063aa7e54fd41aaa311fe /.gitignore
parenta82d992261f79506a0d55b9a179a211f96caf878 (diff)
mac80211: make debugfs files root-only
Unfortunately, debugfs can be made to access invalid memory by open()ing a file and then waiting until the corresponding debugfs file has been removed (and, probably, the underlying object.) That could be exploited by any user if the user is able to open debugfs files and can cause networking devices, STA entries or similar to disappear which is quite easy to do. Hence, all debugfs files should be root-only. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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