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/openbmc/linux/fs/overlayfs/
H A Dsuper.c8c25741a Mon Sep 10 04:43:29 CDT 2018 Miklos Szeredi <mszeredi@redhat.com> ovl: fix oopses in ovl_fill_super() failure paths

ovl_free_fs() dereferences ofs->workbasedir and ofs->upper_mnt in cases when
those might not have been initialized yet.

Fix the initialization order for these fields.

Reported-by: syzbot+c75f181dc8429d2eb887@syzkaller.appspotmail.com
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: <stable@vger.kernel.org> # v4.15
Fixes: 95e6d4177cb7 ("ovl: grab reference to workbasedir early")
Fixes: a9075cdb467d ("ovl: factor out ovl_free_fs() helper")
8c25741a Mon Sep 10 04:43:29 CDT 2018 Miklos Szeredi <mszeredi@redhat.com> ovl: fix oopses in ovl_fill_super() failure paths

ovl_free_fs() dereferences ofs->workbasedir and ofs->upper_mnt in cases when
those might not have been initialized yet.

Fix the initialization order for these fields.

Reported-by: syzbot+c75f181dc8429d2eb887@syzkaller.appspotmail.com
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: <stable@vger.kernel.org> # v4.15
Fixes: 95e6d4177cb7 ("ovl: grab reference to workbasedir early")
Fixes: a9075cdb467d ("ovl: factor out ovl_free_fs() helper")