Messages in this thread | | | Date | Tue, 14 May 2013 08:38:10 -0700 | From | Tejun Heo <> | Subject | Re: [PATCH] cgroup: initialize xattr before calling d_instantiate() |
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On Tue, May 14, 2013 at 07:44:20PM +0800, Li Zefan wrote: > cgroup_create_file() calls d_instantiate(), which may decide to look > at the xattrs on the file. Smack always does this and SELinux can be > configured to do so. > > But cgroup_add_file() didn't initialize xattrs before calling > cgroup_create_file(), which finally leads to dereferencing NULL > dentry->d_fsdata. > > This bug has been there since cgroup xattr was introduced. > > Cc: <stable@vger.kernel.org> # 3.8.x > Reported-by: Ivan Bulatovic <combuster@archlinux.us> > Reported-by: Casey Schaufler <casey@schaufler-ca.com> > Signed-off-by: Li Zefan <lizefan@huawei.com>
Applied to cgroup/for-3.10-fixes.
Thanks.
-- tejun
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