{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-74413", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.893Z", "datePublished": "2026-08-15T05:59:20.021Z", "dateUpdated": "2026-10-16T19:05:44.523Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:46:57.094Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw89: fix wrong pci_get_drvdata type in AER handlers\n\nrtw89 stores an ieee80211_hw pointer via pci_set_drvdata() at probe\ntime, but io_error_detected() and io_resume() retrieve it as a\nnet_device pointer. This causes netif_device_detach/attach to\noperate on an ieee80211_hw struct, reading and writing at wrong\noffsets. The adjacent io_slot_reset() already does it correctly.\n\nUse ieee80211_stop_queues/wake_queues instead, consistent with\nevery other queue stop/start path in the driver.\n\nTested on RTL8852CE by calling the handlers from a test module\nbefore and after the fix." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:A - The vulnerable rtw89 PCIe AER handlers run when the adapter reports non-fatal/fatal PCIe errors; on laptops with RTL8852CE/8852BE and similar in public wireless environments, an adjacent attacker can plausibly induce link faults via traffic stressing the radio-PCIe path.\nAC:L - Once AER recovery invokes rtw89_pci_io_error_detected/resume, the type confusion deterministically treats ieee80211_hw as net_device and corrupts memory through netif_device_detach/attach; no race or layout guesswork beyond triggering PCIe recovery is needed.\nPR:N - No local OS privileges or capabilities are required; an adjacent wireless attacker targeting a victim's rtw89 PCIe WiFi can enter the faulty AER recovery path without authenticating to or holding an account on the system.\nUI:N - No victim action beyond normal use of the affected rtw89 WiFi interface is required; PCIe AER recovery and the corruption run automatically in kernel interrupt/workqueue context.\nS:U - Type confusion corrupts kernel memory within the same kernel security authority; no VM, container, or IOMMU boundary is crossed.\nC:H - Casting ieee80211_hw to net_device makes netif_device_detach/attach read state, flags, and queue metadata at wrong offsets, constituting type confusion that can disclose adjacent kernel memory per kernel CVSS guidance.\nI:H - Atomic bit clears/sets and netif_tx_stop/wake queue operations run on ieee80211_hw memory misinterpreted as net_device fields, enabling out-of-bounds writes and exploitable memory corruption warranting High integrity impact.\nA:H - Misinterpreting ieee80211_hw as net_device leads netif_tx_stop_all_queues and netdev_watchdog_up to dereference garbage queue pointers, causing kernel oops/panic during AER recovery with High availability impact." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/wireless/realtek/rtw89/pci.c" ], "versions": [ { "version": "16e3d93c6183649a3b210f82b83c1cb12aa5e8a3", "lessThan": "aefc30e4a829c1683f6ae999df7f9310c27eae6c", "status": "affected", "versionType": "git" }, { "version": "16e3d93c6183649a3b210f82b83c1cb12aa5e8a3", "lessThan": "c1907b9a4fa9cb33d11a9af138374dd2e93f7a93", "status": "affected", "versionType": "git" }, { "version": "16e3d93c6183649a3b210f82b83c1cb12aa5e8a3", "lessThan": "7068c379cf9aa8afe4dce4d9d82390187aa9c4d0", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/wireless/realtek/rtw89/pci.c" ], "versions": [ { "version": "6.17", "status": "affected" }, { "version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.18.40" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.1.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.2" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/aefc30e4a829c1683f6ae999df7f9310c27eae6c" }, { "url": "https://git.kernel.org/stable/c/c1907b9a4fa9cb33d11a9af138374dd2e93f7a93" }, { "url": "https://git.kernel.org/stable/c/7068c379cf9aa8afe4dce4d9d82390187aa9c4d0" } ], "title": "wifi: rtw89: fix wrong pci_get_drvdata type in AER handlers", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2026-74413", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2026-10-16T18:56:13.259106Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T19:05:44.523Z" } } ] } }