7.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nilesh Javali [ Upstream commit 23582731afa35031c94fadb71a4f3b4afd094649 ] qla24xx_report_id_acquisition() format-1 handling walks ha->vp_list under vport_slock, takes a vref_count on the matching vport and calls qla_update_host_map() to register its port id. A vport teardown via qla24xx_vport_delete() sets VPORT_DELETE, then qla24xx_disable_vp() removes the vport from the host_map btree and zeroes vha->d_id (RESET_AL_PA). The vport is only unlinked from vp_list later, in qla24xx_deallocate_vp_id(), which clears vp_map[idx] (RESET_VP_IDX) but does not touch host_map. In the window in between, report ID acquisition can still find the vport on vp_list and call qla_update_host_map(); with d_id already zeroed it takes the btree_insert32() path and re-inserts the dying vport into host_map. Nothing cleans that entry afterwards, so once scsi_host_put() frees the vha a later host_map lookup dereferences freed memory. Skip a vport that has VPORT_DELETE set before taking the reference, so it is neither re-registered nor scheduled for DPC re-registration. This mirrors the existing guard in qla2x00_alert_all_vps(). Fixes: 41dc529a4602 ("qla2xxx: Improve RSCN handling in driver") Cc: stable@vger.kernel.org Reported-by: Sashiko Signed-off-by: Nilesh Javali Link: https://patch.msgid.link/20260730155838.2119230-22-njavali@marvell.com Signed-off-by: Martin K. Petersen (Oracle) [ Adjusted context to use rptid_entry->vp_idx instead of the missing local vp_idx variable. ] Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/qla2xxx/qla_mbx.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -4204,6 +4204,8 @@ qla24xx_report_id_acquisition(scsi_qla_h spin_lock_irqsave(&ha->vport_slock, flags); list_for_each_entry(vp, &ha->vp_list, list) { if (rptid_entry->vp_idx == vp->vp_idx) { + if (test_bit(VPORT_DELETE, &vp->dpc_flags)) + break; found = 1; atomic_inc(&vp->vref_count); break;