Re: [PATCH] RDMA/rxe: Fix possible NULL pointer dereference

From: Jason Gunthorpe
Date: Fri Oct 16 2020 - 13:04:29 EST


On Mon, Oct 12, 2020 at 05:52:30PM +0100, Alex Dewar wrote:
> skb_clone() is called without checking if the returned pointer is NULL
> before it is dereferenced. Fix by adding an additional error check.
>
> Fixes: e7ec96fc7932 ("RDMA/rxe: Fix skb lifetime in rxe_rcv_mcast_pkt()")
> Addresses-Coverity-ID: 1497804: Null pointer dereferences (NULL_RETURNS)
> Signed-off-by: Alex Dewar <alex.dewar90@xxxxxxxxx>
> ---
> drivers/infiniband/sw/rxe/rxe_recv.c | 11 +++++++++--
> 1 file changed, 9 insertions(+), 2 deletions(-)

I took Bob's version of this since it is a little bit simpler

Thanks,
Jason