In the Linux kernel, the following vulnerability has been resolved:
scsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition()
In the format 1 path, the virtual port is located on ha->vp_list while
holding vport_slock, but the lock is dropped before vp is used:
qla_update_host_map() is called and VP_IDX_ACQUIRED/REGISTER_FC4_NEEDED/
REGISTER_FDMI_NEEDED are set on vp. No reference is taken across that
window, so a concurrent qla24xx_deallocate_vp_id() can tear the vport
down and free it, leading to a use-after-free.
Take a vport reference (vref_count) under vport_slock when the matching
vp is found, and drop it after the last use of
vp. qla24xx_deallocate_vp_id() waits for vref_count to reach zero before
unlinking and freeing the vport, so the pointer stays valid. This
matches the reference idiom already used by the other ha->vp_list
traversals.
scsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition()
In the format 1 path, the virtual port is located on ha->vp_list while
holding vport_slock, but the lock is dropped before vp is used:
qla_update_host_map() is called and VP_IDX_ACQUIRED/REGISTER_FC4_NEEDED/
REGISTER_FDMI_NEEDED are set on vp. No reference is taken across that
window, so a concurrent qla24xx_deallocate_vp_id() can tear the vport
down and free it, leading to a use-after-free.
Take a vport reference (vref_count) under vport_slock when the matching
vp is found, and drop it after the last use of
vp. qla24xx_deallocate_vp_id() waits for vref_count to reach zero before
unlinking and freeing the vport, so the pointer stays valid. This
matches the reference idiom already used by the other ha->vp_list
traversals.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 16 Sep 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition() In the format 1 path, the virtual port is located on ha->vp_list while holding vport_slock, but the lock is dropped before vp is used: qla_update_host_map() is called and VP_IDX_ACQUIRED/REGISTER_FC4_NEEDED/ REGISTER_FDMI_NEEDED are set on vp. No reference is taken across that window, so a concurrent qla24xx_deallocate_vp_id() can tear the vport down and free it, leading to a use-after-free. Take a vport reference (vref_count) under vport_slock when the matching vp is found, and drop it after the last use of vp. qla24xx_deallocate_vp_id() waits for vref_count to reach zero before unlinking and freeing the vport, so the pointer stays valid. This matches the reference idiom already used by the other ha->vp_list traversals. | |
| Title | scsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition() | |
| First Time appeared |
Linux
Linux linux Kernel |
|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| References |
|
|
Projects
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MITRE
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-09-16T10:31:32.987Z
Reserved: 2026-09-11T19:38:34.771Z
Link: CVE-2026-89861
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-09-16T11:16:54.100
Modified: 2026-09-16T11:16:54.100
Link: CVE-2026-89861
Redhat
No data.
OpenCVE Enrichment
No data.
Weaknesses
No weakness.