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CVE-2022-50827

scsi: lpfc: Fix memory leak in lpfc_create_port() PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 5e633302ace1f61f8ea5a3ce21e19a4d79126cca before 9749595feb33a1a2b848800192224ffeed5346b4; affected 5e633302ace1f61f8ea5a3ce21e19a4d79126cca before 5ea1f195f51c2bb5915ccfb2b2885ca81ce9262b; affected 5e633302ace1f61f8ea5a3ce21e19a4d79126cca before dc8e483f684a24cc06e1d5fa958b54db58855093
Linux / Linuxaffected 5.14; unaffected 0 before 5.14; unaffected 5.15.76 through 5.15.*; unaffected 6.0.6 through 6.0.*; unaffected 6.1 through *

CWE

No CWE identifiers supplied.

References