nvme-fc: Prevent null pointer dereference in nvme_fc_io_getuuid() (!3230) · Merge requests · Red Hat / centos-stream / src / kernel / centos-stream-9

Ewan D. Milne requested to merge e-milne/centos-stream-9:rhel1604 into main Oct 18, 2023

JIRA: https://issues.redhat.com/browse/RHEL-1604 Upstream Status: From upstream linux mainline

The nvme_fc_fcp_op structure describing an AEN operation is initialized with a null request structure pointer. An FC LLDD may make a call to nvme_fc_io_getuuid passing a pointer to an nvmefc_fcp_req for an AEN operation.

Add validation of the request structure pointer before dereference.

Signed-off-by: Ewan D. Milne emilne@redhat.com

nvme-fc: Prevent null pointer dereference in nvme_fc_io_getuuid()

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