FKIE_CVE-2026-90113
Vulnerability from fkie_nvd - Published: 2026-09-17 17:17 - Updated: 2026-10-19 09:19| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/netdevsim/netdev.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "b8f32b0804b4bf0cba0ee0a093e3fd74f11d7166",
"status": "affected",
"version": "5bc8e8dbef27b73bd7b6d1fd5108b4fd4c6d469f",
"versionType": "git"
},
{
"lessThan": "db038ac4dca0fa626199e9c297eddd8362be0550",
"status": "affected",
"version": "5bc8e8dbef27b73bd7b6d1fd5108b4fd4c6d469f",
"versionType": "git"
},
{
"lessThan": "07e98a4d5e9c292eae97c9cc5ab0937384e48492",
"status": "affected",
"version": "5bc8e8dbef27b73bd7b6d1fd5108b4fd4c6d469f",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/netdevsim/netdev.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.14"
},
{
"lessThan": "6.14",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetdevsim: update queue NAPI association on queue reset\n\nIn netdevsim, receive queues (struct nsim_rq) embed their own struct\nnapi_struct. When queue reset is performed (e.g. via queue_reset\ndebugfs), nsim_queue_start() swaps in a newly allocated struct nsim_rq,\nand nsim_queue_mem_free() later deletes and frees the old one.\n\nHowever, nsim_queue_start() failed to update the queue-to-NAPI mapping\nvia netif_queue_set_napi(). As a result, dev-\u003e_rx[idx].napi continued to\npoint to the old NAPI struct. After the old queue was freed, a subsequent\nqueue dump via Netlink (NETDEV_CMD_QUEUE_GET) triggered a KASAN\nslab-use-after-free read in nla_put_napi_id() when accessing\nrxq-\u003enapi-\u003enapi_id.\n\nFix this by calling netif_queue_set_napi() in nsim_queue_start() to\nassociate the new NAPI with the RX queue, and clear the association\nwith netif_queue_set_napi(..., NULL) in nsim_del_napi() during teardown."
}
],
"id": "CVE-2026-90113",
"lastModified": "2026-10-19T09:19:00.733",
"metrics": {},
"published": "2026-09-17T17:17:03.367",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/07e98a4d5e9c292eae97c9cc5ab0937384e48492"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/b8f32b0804b4bf0cba0ee0a093e3fd74f11d7166"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/db038ac4dca0fa626199e9c297eddd8362be0550"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
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Nomenclature
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