Fixed
Created: Feb 27, 2025
Updated: Jun 10, 2025
Resolved Date: May 28, 2025
Found In Version: 10.22.33.1
Fix Version: 10.22.33.21
Severity: Standard
Applicable for: Wind River Linux LTS 22
Component/s: Kernel
In the Linux kernel, the following vulnerability has been resolved:
scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI
If lpfc_issue_els_flogi() fails and returns non-zero status, the node
reference count is decremented to trigger the release of the nodelist
structure. However, if there is a prior registration or dev-loss-evt work
pending, the node may be released prematurely. When dev-loss-evt
completes, the released node is referenced causing a use-after-free null
pointer dereference.
Similarly, when processing non-zero ELS PLOGI completion status in
lpfc_cmpl_els_plogi(), the ndlp flags are checked for a transport
registration before triggering node removal. If dev-loss-evt work is
pending, the node may be released prematurely and a subsequent call to
lpfc_dev_loss_tmo_handler() results in a use after free ndlp dereference.
Add test for pending dev-loss before decrementing the node reference count
for FLOGI, PLOGI, PRLI, and ADISC handling.
CREATE(Triage):(User=admin) CVE-2022-49535 (https://nvd.nist.gov/vuln/detail/CVE-2022-49535)
