[PATCH] net/ipv6: Convert from atomic_t to refcount_t on ip6_flowlabel->users

[David Ahern]

On 7/19/21 2:35 AM, Xiyu Yang wrote:
> refcount_t type and corresponding API can protect refcounters from
> accidental underflow and overflow and further use-after-free situations.
> 
> Signed-off-by: Xiyu Yang <xiyuyang19 at fudan.edu.cn>
> Signed-off-by: Xin Tan <tanxin.ctf at gmail.com>
> ---
>  include/net/ipv6.h       |  5 +++--
>  net/ipv6/ip6_flowlabel.c | 18 +++++++++---------
>  2 files changed, 12 insertions(+), 11 deletions(-)
> 

Reviewed-by: David Ahern <dsahern at kernel.org>