Bug 2347930 (CVE-2022-49534)

Summary:	CVE-2022-49534 kernel: scsi: lpfc: Protect memory leak for NPIV ports sending PLOGI_RJT
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar
Target Milestone:	---	Keywords:	Security
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Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Description OSIDB Bzimport 2025-02-26 03:11:42 UTC

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

scsi: lpfc: Protect memory leak for NPIV ports sending PLOGI_RJT

There is a potential memory leak in lpfc_ignore_els_cmpl() and
lpfc_els_rsp_reject() that was allocated from NPIV PLOGI_RJT
(lpfc_rcv_plogi()'s login_mbox).

Check if cmdiocb->context_un.mbox was allocated in lpfc_ignore_els_cmpl(),
and then free it back to phba->mbox_mem_pool along with mbox->ctx_buf for
service parameters.

For lpfc_els_rsp_reject() failure, free both the ctx_buf for service
parameters and the login_mbox.

Comment 1 Avinash Hanwate 2025-02-26 21:39:59 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022613-CVE-2022-49534-ad11@gregkh/T