net/mlx5: Devcom, fix error flow in mlx5_devcom_register_device

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commit af87194352 upstream.

In case devcom allocation is failed, mlx5 is always freeing the priv.
However, this priv might have been allocated by a different thread,
and freeing it might lead to use-after-free bugs.
Fix it by freeing the priv only in case it was allocated by the
running thread.

Fixes: fadd59fc50 ("net/mlx5: Introduce inter-device communication mechanism")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Shay Drory 2023-05-02 13:35:11 +03:00 • committed by Greg Kroah-Hartman

parent 411e4d6caa

commit eaa365c104

1 changed files with 2 additions and 1 deletions

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drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.c

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