Answer in brief
CVE-2026-89848 records a High severity (CVSS 8.1) 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), 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.
CVSS is 8.1. 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), 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 |
| Linux/Linuxgeneric | >=d74595278f4ab192af66d9e60a9087464638beee <730a18768b27582636b5af343069c30809b763a2 || >=d74595278f4ab192af66d9e60a9087464638beee <be68aef64ab2e633867c4ac946d16644c306fc3d || >=d74595278f4ab192af66d9e60a9087464638beee <0a005dcc5e9bf7b31a45422b10f2765b25161389 || >=d74595278f4ab192af66d9e60a9087464638beee <7ac5be2a8609679fc6bbfea881360444a5ce8202 || >=d74595278f4ab192af66d9e60a9087464638beee <1486cc18be3e2b4c2a730f4a1b0448d009381b3d || >=d74595278f4ab192af66d9e60a9087464638beee <10e9f05f7fd0a103886a867ec8afe621fe4b906a || >=d74595278f4ab192af66d9e60a9087464638beee <157ca7d1af45f87aa14a286754f19c3f72386988 || >=d74595278f4ab192af66d9e60a9087464638beee <505753ec2594c6af09a601f0dd60be7d840c1d2d | 730a18768b27582636b5af343069c30809b763a2, be68aef64ab2e633867c4ac946d16644c306fc3d, 0a005dcc5e9bf7b31a45422b10f2765b25161389, 7ac5be2a8609679fc6bbfea881360444a5ce8202, 1486cc18be3e2b4c2a730f4a1b0448d009381b3d, 10e9f05f7fd0a103886a867ec8afe621fe4b906a, 157ca7d1af45f87aa14a286754f19c3f72386988, 505753ec2594c6af09a601f0dd60be7d840c1d2d |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 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.