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Change History

In the Linux kernel, the following vulnerability has been resolved:

scsi: lpfc: Fix memory leak in lpfc_create_port()

Commit 5e633302ace1 ("scsi: lpfc: vmid: Add support for VMID in mailbox
command") introduced allocations for the VMID resources in
lpfc_create_port() after the call to scsi_host_alloc(). Upon failure on the
VMID allocations, the new code would branch to the 'out' label, which
returns NULL without unwinding anything, thus skipping the call to
scsi_host_put().

Fix the problem by creating a separate label 'out_free_vmid' to unwind the
VMID resources and make the 'out_put_shost' label call only
scsi_host_put(), as was done before the introduction of allocations for
VMID.

https://git.kernel.org/stable/c/5ea1f195f51c2bb5915ccfb2b2885ca81ce9262b

https://git.kernel.org/stable/c/9749595feb33a1a2b848800192224ffeed5346b4

https://git.kernel.org/stable/c/dc8e483f684a24cc06e1d5fa958b54db58855093