High 8.1Published Sep 16, 2026

CVE-2026-89861scsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition()

Updated under an hour ago (Oct 28, 2026, 7:10 AM ET)

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Exploited in the last 30 days

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.

CVSS: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 before d09ef32af1e05d79f29b460521a20bc4e6fd2ecf; from 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 before 4b7f0a95bfeb1d3673da4c29bbe9872a61bc1a69; from 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 before 267533b28ddf2c9223d30ad7e6960fa9e936428e; from 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 before f8d2eb510c063a8ca79a5dc766a4303d3925fe83; from 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 before f6b3bcc7cb2f4c37464958b9fd97dc7f185ea297; from 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 before 47272152a13d202d98496208f9bf382c1cf4d4fb; from 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 before d556f899964d184e6cb788f3fa9dcddcafe1ab2d; from 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 before 793cedee296fd819bfadc2a7ec4d52faf9c09a0a	CNA record

References

References

https://git.kernel.org/stable/c/d09ef32af1e05d79f29b460521a20bc4e6fd2ecf
https://git.kernel.org/stable/c/4b7f0a95bfeb1d3673da4c29bbe9872a61bc1a69
https://git.kernel.org/stable/c/267533b28ddf2c9223d30ad7e6960fa9e936428e
https://git.kernel.org/stable/c/f8d2eb510c063a8ca79a5dc766a4303d3925fe83
https://git.kernel.org/stable/c/f6b3bcc7cb2f4c37464958b9fd97dc7f185ea297
https://git.kernel.org/stable/c/47272152a13d202d98496208f9bf382c1cf4d4fb
https://git.kernel.org/stable/c/d556f899964d184e6cb788f3fa9dcddcafe1ab2d
https://git.kernel.org/stable/c/793cedee296fd819bfadc2a7ec4d52faf9c09a0a

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.