[dpdk-dev] [PATCH] net/mlx5: fix flow tables double release
Thomas Monjalon
thomas at monjalon.net
Wed Sep 29 22:46:26 CEST 2021
29/09/2021 09:55, Matan Azrad:
> From: Bing Zhao
> > In the function mlx5_alloc_shared_dr(), there are various reasons to result in
> > a failure and error clean up process. While in the caller of mlx5_dev_spawn(),
> > once there is a error occurring after the mlx5_alloc_shared_dr(), the
> > mlx5_os_free_shared_dr() is called to release all the resources.
> >
> > To prevent a double release, the pointers of the resources should be
> > checked before the releasing and set to NULL after done.
> >
> > In the mlx5_free_table_hash_list(), after the releasing, the pointer was
> > missed to set to NULL and a double release may cause a crash.
> >
> > By setting the tables pointer to NULL as done for other resources, the double
> > release and crash could be solved.
> >
> > Fixes: 54534725d2f3 ("net/mlx5: fix flow table hash list conversion")
> > Cc: matan at mellanox.com
> > Cc: stable at dpdk.org
> >
> > Signed-off-by: Bing Zhao <bingz at nvidia.com>
> Acked-by: Matan Azrad <matan at nvidia.com>
Applied in next-net-mlx, thanks.
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