On Fri, Feb 04, 2022 at 05:02:31PM -0800, Mat Martineau wrote:
> commit 8e9eacad7ec7a9cbf262649ebf1fa6e6f6cc7d82 upstream.
>
> The upstream commit had to handle a lookup_by_id variable that is only
> present in 5.17. This version of the patch removes that variable, so the
> __lookup_addr() function only handles the lookup as it is implemented in
> 5.15 and 5.16. It also removes one 'const' keyword to prevent a warning
> due to differing const-ness in the 5.17 version of addresses_equal().
>
> The MPTCP endpoint list is under RCU protection, guarded by the
> pernet spinlock. mptcp_nl_cmd_set_flags() traverses the list
> without acquiring the spin-lock nor under the RCU critical section.
>
> This change addresses the issue performing the lookup and the endpoint
> update under the pernet spinlock.
>
> Cc: <stable@xxxxxxxxxxxxxxx> # 5.15.x
> Cc: <stable@xxxxxxxxxxxxxxx> # 5.16.x
> Fixes: 0f9f696a502e ("mptcp: add set_flags command in PM netlink")
> Acked-by: Paolo Abeni <pabeni@xxxxxxxxxx>
> Signed-off-by: Mat Martineau <mathew.j.martineau@xxxxxxxxxxxxxxx>
> ---
> net/mptcp/pm_netlink.c | 34 +++++++++++++++++++++++++---------
> 1 file changed, 25 insertions(+), 9 deletions(-)
Now queued up, thanks.
greg k-h
