scsi: qla2xxx: Skip vport under deletion in report ID acquisition
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 7 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
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().
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.160, 6.12.112, 6.18.53, 7.2.7, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-97531
- 2026-10-03 Alias added: GHSA-pr28-3mcx-gcmr
- 2026-10-03 Fix available: Linux/Linux@20bb54601d2655e83795b73499c89f6b1cb31016, Linux/[email protected] · CNA
- 2026-10-03 1 new reference · CNA
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-21 Fix available: Linux/Linux@40dcd4a71a52414b47fbba2f956387f1077c6c15, Linux/[email protected] · CNA
- 2026-10-21 1 new reference · CNA
- 2026-10-23 Affected versions changed · Red Hat
- 2026-10-23 CVSS score changed · Red Hat
- 2026-10-30 Fix available: Linux/[email protected], Linux/Linux@d3ac7e0f454c7d52c0c2e5ecaf5a3d938f1b166d · CNA
- 2026-10-30 1 new reference · CNA
- 2026-10-30 Affected versions changed · Red Hat
References
Other 6
- https://git.kernel.org/stable/c/d3ac7e0f454c7d52c0c2e5ecaf5a3d938f1b166d
- https://git.kernel.org/stable/c/40dcd4a71a52414b47fbba2f956387f1077c6c15
- https://git.kernel.org/stable/c/20bb54601d2655e83795b73499c89f6b1cb31016
- https://git.kernel.org/stable/c/d61e8de98c5a52978fb1edd95fe4dde3131b280e
- https://git.kernel.org/stable/c/7a83979d92782f83c90888ebe19bdc9420521940
- https://git.kernel.org/stable/c/23582731afa35031c94fadb71a4f3b4afd094649
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Sources
- CVE-2026-97531 · CVE Program
- CVE-2026-97531 · NVD
- FIRST EPSS
- GHSA-pr28-3mcx-gcmr · GitHub Advisory Database · CC BY 4.0
- CVE-2026-97531 · Red Hat security data · CC BY 4.0
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