Bug 2347825 (CVE-2022-49730) - CVE-2022-49730 kernel: scsi: lpfc: Resolve NULL ptr dereference after an ELS LOGO is aborted
Summary: CVE-2022-49730 kernel: scsi: lpfc: Resolve NULL ptr dereference after an ELS ...
Keywords:
Status: NEW
Alias: CVE-2022-49730
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-02-26 03:08 UTC by OSIDB Bzimport
Modified: 2025-02-28 01:40 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-02-26 03:08:06 UTC 
In the Linux kernel, the following vulnerability has been resolved:

scsi: lpfc: Resolve NULL ptr dereference after an ELS LOGO is aborted

A use-after-free crash can occur after an ELS LOGO is aborted.

Specifically, a nodelist structure is freed and then
ndlp->vport->cfg_log_verbose is dereferenced in lpfc_nlp_get() when the
discovery state machine is mistakenly called a second time with
NLP_EVT_DEVICE_RM argument.

Rework lpfc_cmpl_els_logo() to prevent the duplicate calls to release a
nodelist structure.
Comment 3 Avinash Hanwate 2025-02-28 01:36:04 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022634-CVE-2022-49730-db2b@gregkh/T
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