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03acb0c5ac
refcount_t type and corresponding API can protect refcounters from accidental underflow and overflow and further use-after-free situations. Acked-by: Dimitri Sivanich <sivanich@hpe.com> Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn> Signed-off-by: Xin Tan <tanxin.ctf@gmail.com> Link: https://lore.kernel.org/r/1626517043-42696-1-git-send-email-xiyuyang19@fudan.edu.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>