Answer in brief
CVE-2026-90113 records a Unknown severity vulnerability in netdevsim: update queue NAPI association on queue reset. 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 | >=5bc8e8dbef27b73bd7b6d1fd5108b4fd4c6d469f <b8f32b0804b4bf0cba0ee0a093e3fd74f11d7166 || >=5bc8e8dbef27b73bd7b6d1fd5108b4fd4c6d469f <db038ac4dca0fa626199e9c297eddd8362be0550 || >=5bc8e8dbef27b73bd7b6d1fd5108b4fd4c6d469f <07e98a4d5e9c292eae97c9cc5ab0937384e48492 | b8f32b0804b4bf0cba0ee0a093e3fd74f11d7166, db038ac4dca0fa626199e9c297eddd8362be0550, 07e98a4d5e9c292eae97c9cc5ab0937384e48492 |
| Linux/Linuxgeneric | 6.14 | Not reported |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 17, 2026
In the Linux kernel, the following vulnerability has been resolved: netdevsim: update queue NAPI association on queue reset In netdevsim, receive queues (struct nsim_rq) embed their own struct napi_struct. When queue reset is performed (e.g. via queue_reset debugfs), nsim_queue_start() swaps in a newly allocated struct nsim_rq, and nsim_queue_mem_free() later deletes and frees the old one. However, nsim_queue_start() failed to update the queue-to-NAPI mapping via netif_queue_set_napi(). As a result, dev->_rx[idx].napi continued to point to the old NAPI struct. After the old queue was freed, a subsequent queue dump via Netlink (NETDEV_CMD_QUEUE_GET) triggered a KASAN slab-use-after-free read in nla_put_napi_id() when accessing rxq->napi->napi_id. Fix this by calling netif_queue_set_napi() in nsim_queue_start() to associate the new NAPI with the RX queue, and clear the association with netif_queue_set_napi(..., NULL) in nsim_del_napi() during teardown.
Quoted source text, attributed separately from HOL analysis.