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mlx5: fix a use-after-free error in mlx5_next_poll #1526

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mlx5: fix a use-after-free error in mlx5_next_poll #1526

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Commits on Nov 27, 2024

  1. mlx5: fix a use-after-free error in mlx5_next_poll 

    When using cq_ex inteface, if the user destroys the QP associated with
the current work completion, the next ibv_next_poll() call will cause a
use-after-free error since it needs to access the QP that has already
been destroyed through cq->cur_rsc inside get_req_context().

Fix this error by resetting the cq->cur_rsc in __mlx5_cq_clean if it is
associated with the QP to be destroyed.

Signed-off-by: ZHOU Huaping <[email protected]>
    @FujiZ
    FujiZ committed Nov 27, 2024
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