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authorSerge E. Hallyn <serue@us.ibm.com>2009-02-13 14:04:21 +0000
committerLinus Torvalds <torvalds@linux-foundation.org>2009-02-13 08:07:40 -0800
commitfb5ae64fdde29236e1a15e0366946df7060f41f2 (patch)
tree86be58998529fa84282ec1b98040d707e4b61686 /init/do_mounts_md.c
parent37bed90094fdb1eea6e4afec6a200d4e60143e55 (diff)
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User namespaces: Only put the userns when we unhash the uid
uids in namespaces other than init don't get a sysfs entry. For those in the init namespace, while we're waiting to remove the sysfs entry for the uid the uid is still hashed, and alloc_uid() may re-grab that uid without getting a new reference to the user_ns, which we've already put in free_user before scheduling remove_user_sysfs_dir(). Reported-and-tested-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Acked-by: David Howells <dhowells@redhat.com> Tested-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'init/do_mounts_md.c')
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