idpf: fix aux device unplugging when rdma is not supported by vport

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[ Upstream commit 4648fb2f2e ]

If vport flags do not contain VIRTCHNL2_VPORT_ENABLE_RDMA, driver does not
allocate vdev_info for this vport. This leads to kernel NULL pointer
dereference in idpf_idc_vport_dev_down(), which references vdev_info for
every vport regardless.

Check, if vdev_info was ever allocated before unplugging aux device.

Fixes: be91128c57 ("idpf: implement RDMA vport auxiliary dev create, init, and destroy")
Reviewed-by: Madhu Chittim <madhu.chittim@intel.com>
Signed-off-by: Larysa Zaremba <larysa.zaremba@intel.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Larysa Zaremba 2025-11-17 08:03:49 +01:00 • committed by Greg Kroah-Hartman

parent 258e7c55f9

commit 0ad6d6e50e

1 changed files with 1 additions and 1 deletions

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drivers/net/ethernet/intel/idpf/idpf_idc.c

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