Answer in brief
CVE-2026-89848 records a Unknown severity vulnerability in scsi: qla2xxx: Quiesce response IRQ before freeing request queue. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d74595278f4ab192af66d9e60a9087464638beee <7ac5be2a8609679fc6bbfea881360444a5ce8202 || >=d74595278f4ab192af66d9e60a9087464638beee <1486cc18be3e2b4c2a730f4a1b0448d009381b3d || >=d74595278f4ab192af66d9e60a9087464638beee <10e9f05f7fd0a103886a867ec8afe621fe4b906a || >=d74595278f4ab192af66d9e60a9087464638beee <157ca7d1af45f87aa14a286754f19c3f72386988 || >=d74595278f4ab192af66d9e60a9087464638beee <505753ec2594c6af09a601f0dd60be7d840c1d2d | 7ac5be2a8609679fc6bbfea881360444a5ce8202, 1486cc18be3e2b4c2a730f4a1b0448d009381b3d, 10e9f05f7fd0a103886a867ec8afe621fe4b906a, 157ca7d1af45f87aa14a286754f19c3f72386988, 505753ec2594c6af09a601f0dd60be7d840c1d2d |
| Linux/Linuxgeneric | 4.10 | Not reported |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 16, 2026
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Quiesce response IRQ before freeing request queue qla2xxx_delete_qpair() deletes the request queue before the response queue. qla25xx_delete_req_que() frees the request queue memory (kfree(req) in qla25xx_free_req_que()), but the response-queue MSI-X is only released later, in qla25xx_free_rsp_que(). In that window the response interrupt can still fire, qla2xxx_msix_rsp_q() queues qpair->q_work, and qla_do_work() -> qla24xx_process_response_queue() dereferences the now-freed rsp->req (LOGINOUT/CT/ELS entries and the status path), a use-after-free. The cancel_work_sync() added for the qpair teardown lives in the response free path, which runs after the request queue is already freed, so it does not protect rsp->req. Release the response-queue interrupt and flush qpair->q_work before deleting the request queue, so no late completion can reach the freed request queue. Clearing have_irq makes the subsequent qla25xx_free_rsp_que() skip its free_irq(), and the firmware queue-delete order (request then response) is preserved; the request-delete mailbox completes on the default vector and is unaffected by dropping the qpair response interrupt early.
Quoted source text, attributed separately from HOL analysis.