CVE-2026-97531

CVE CVE-2026-97531EUVD EUVD-2026-86839Published 2026-09-25T10:21:31.000ZLast changed 2026-09-25T14:41:09.000ZCVSS 7.5

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Skip vport under deletion in report ID acquisition 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().

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 7.3-rc1; 4.11; patch: 0; 41dc529a4602ac737020f423f84686a81de38e6d <23582731afa35031c94fadb71a4f3b4afd094649; patch: 6.18.53; patch: 7.2.7; 41dc529a4602ac737020f423f84686a81de38e6d <d61e8de98c5a52978fb1edd95fe4dde3131b280e; 41dc529a4602ac737020f423f84686a81de38e6d <7a83979d92782f83c90888ebe19bdc9420521940

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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