{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-63832", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.015Z", "datePublished": "2026-07-19T12:02:24.908Z", "dateUpdated": "2026-08-05T12:36:15.474Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:36:15.474Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: add wcid publish check in mt76_sta_add\n\nSince mt7925_mac_sta_add publishes wcid, add publish check in mt76_sta_add\nto avoid reinitializing the wcid->poll_list.\n\nFound dev->sta_poll_list corruption when using mt7925 and 7.1-rc4.\nAccording to the corruption information, prev->next was changed to itself.\n\nwlan0: disconnect from AP 90:fb:5d:94:8b:e3 for new auth to 90:fb:5d:94:8b:e2\nwlan0: authenticate with 90:fb:5d:94:8b:e2 (local address=84:9e:56:9c:7e:6b)\nwlan0: send auth to 90:fb:5d:94:8b:e2 (try 1/3)\n slab kmalloc-8k start ffff8c80958a6000 pointer offset 4160 size 8192\nlist_add corruption. prev->next should be next (ffff8c808a7488f8), but was ffff8c80958a7040. (prev=ffff8c80958a7040).\n\n mt76_wcid_add_poll+0x95/0xd0 [mt76]\n mt7925_mac_add_txs.part.0+0xa5/0xe0 [mt7925_common]\n mt7925_rx_check+0xa7/0xc0 [mt7925_common]\n mt76_dma_rx_poll+0x50d/0x790 [mt76]\n mt792x_poll_rx+0x52/0xe0 [mt792x_lib]"}], "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 bug is reached through WiFi RX/TX-status DMA processing and station add during 802.11 association/roaming, both triggered by frames from a peer on the same wireless segment. Per kernel WiFi guidance, frame-driven driver bugs are Adjacent, not Network.\nAC:L - An adjacent attacker can reliably create the race by sending deauth/association traffic to force sta re-add while flooding data frames to keep the RX poll path active; both sides of the race are attacker-influenced and repeatable.\nPR:N - Exploitation requires no Linux privileges\u2014only the ability to send 802.11 management/data frames as a nearby WiFi peer (rogue AP, deauth attacker, or associating client on AP mode), with no authentication to the victim host.\nUI:N - No victim user action is required beyond normal WiFi operation; deauth-forced roaming and automatic reassociation drive the vulnerable sta_add path without user interaction.\nS:U - Impact is kernel heap/list corruption within the same security authority; this is not a VM escape, IOMMU bypass, or cross-namespace boundary violation.\nC:H - Reinitializing an embedded list_head while still linked corrupts kernel linked-list metadata in kmalloc-backed structures; list corruption is memory corruption that can be leveraged for arbitrary kernel memory disclosure.\nI:H - The corrupted doubly-linked list enables list-poisoning style arbitrary kernel writes and potential control-flow hijacking, not merely a bounded or transient modification.\nA:H - The reproducer triggers kernel list_add corruption detection and crash; corrupted sta_poll_list integrity can cause kernel panic/oops during normal WiFi operation."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/mediatek/mt76/mac80211.c"], "versions": [{"version": "4911e4cb157cf87d5bdb3fa8e0c200032443371e", "lessThan": "3c499851753a24d2e148d4e9ca51764c0c51554e", "status": "affected", "versionType": "git"}, {"version": "4911e4cb157cf87d5bdb3fa8e0c200032443371e", "lessThan": "55e014aaec650ede08b693ba59c8d0443f13f11c", "status": "affected", "versionType": "git"}, {"version": "4911e4cb157cf87d5bdb3fa8e0c200032443371e", "lessThan": "20b126920a259df4d7dcae19fcfe2c57a74d6b2e", "status": "affected", "versionType": "git"}, {"version": "c9389e3f9453ec2d710e61830eafedddfd561226", "status": "affected", "versionType": "git"}, {"version": "57d3f833087942ded1a8765b1b361454d3d39e8f", "status": "affected", "versionType": "git"}, {"version": "6.12.13", "lessThan": "6.13", "status": "affected", "versionType": "semver"}, {"version": "6.13.2", "lessThan": "6.14", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/mediatek/mt76/mac80211.c"], "versions": [{"version": "6.14", "status": "affected"}, {"version": "0", "lessThan": "6.14", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.38", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.3", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc1", "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": "6.14", "versionEndExcluding": "6.18.38"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.1.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.2-rc1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/3c499851753a24d2e148d4e9ca51764c0c51554e"}, {"url": "https://git.kernel.org/stable/c/55e014aaec650ede08b693ba59c8d0443f13f11c"}, {"url": "https://git.kernel.org/stable/c/20b126920a259df4d7dcae19fcfe2c57a74d6b2e"}], "title": "wifi: mt76: add wcid publish check in mt76_sta_add", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/mediatek/mt76/mac80211.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "3c499851753a24d2e148d4e9ca51764c0c51554e", "status": "affected", "version": "4911e4cb157cf87d5bdb3fa8e0c200032443371e", "versionType": "git"}, {"lessThan": "55e014aaec650ede08b693ba59c8d0443f13f11c", "status": "affected", "version": "4911e4cb157cf87d5bdb3fa8e0c200032443371e", "versionType": "git"}, {"lessThan": "20b126920a259df4d7dcae19fcfe2c57a74d6b2e", "status": "affected", "version": "4911e4cb157cf87d5bdb3fa8e0c200032443371e", "versionType": "git"}, {"status": "affected", "version": "c9389e3f9453ec2d710e61830eafedddfd561226", "versionType": "git"}, {"status": "affected", "version": "57d3f833087942ded1a8765b1b361454d3d39e8f", "versionType": "git"}, {"lessThan": "6.13", "status": "affected", "version": "6.12.13", "versionType": "semver"}, {"lessThan": "6.14", "status": "affected", "version": "6.13.2", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/mediatek/mt76/mac80211.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": "6.18.38", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.3", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc1", "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\nwifi: mt76: add wcid publish check in mt76_sta_add\n\nSince mt7925_mac_sta_add publishes wcid, add publish check in mt76_sta_add\nto avoid reinitializing the wcid->poll_list.\n\nFound dev->sta_poll_list corruption when using mt7925 and 7.1-rc4.\nAccording to the corruption information, prev->next was changed to itself.\n\nwlan0: disconnect from AP 90:fb:5d:94:8b:e3 for new auth to 90:fb:5d:94:8b:e2\nwlan0: authenticate with 90:fb:5d:94:8b:e2 (local address=84:9e:56:9c:7e:6b)\nwlan0: send auth to 90:fb:5d:94:8b:e2 (try 1/3)\n slab kmalloc-8k start ffff8c80958a6000 pointer offset 4160 size 8192\nlist_add corruption. prev->next should be next (ffff8c808a7488f8), but was ffff8c80958a7040. (prev=ffff8c80958a7040).\n\n mt76_wcid_add_poll+0x95/0xd0 [mt76]\n mt7925_mac_add_txs.part.0+0xa5/0xe0 [mt7925_common]\n mt7925_rx_check+0xa7/0xc0 [mt7925_common]\n mt76_dma_rx_poll+0x50d/0x790 [mt76]\n mt792x_poll_rx+0x52/0xe0 [mt792x_lib]"}], "id": "CVE-2026-63832", "lastModified": "2026-07-27T17:44:23.777", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-07-19T12:16:56.600", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/20b126920a259df4d7dcae19fcfe2c57a74d6b2e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3c499851753a24d2e148d4e9ca51764c0c51554e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/55e014aaec650ede08b693ba59c8d0443f13f11c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: wifi: mt76: add wcid publish check in mt76_sta_add", "id": "2502207", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502207"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-464", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: mt76: add wcid publish check in mt76_sta_add\nSince mt7925_mac_sta_add publishes wcid, add publish check in mt76_sta_add\nto avoid reinitializing the wcid->poll_list.\nFound dev->sta_poll_list corruption when using mt7925 and 7.1-rc4.\nAccording to the corruption information, prev->next was changed to itself.\nwlan0: disconnect from AP 90:fb:5d:94:8b:e3 for new auth to 90:fb:5d:94:8b:e2\nwlan0: authenticate with 90:fb:5d:94:8b:e2 (local address=84:9e:56:9c:7e:6b)\nwlan0: send auth to 90:fb:5d:94:8b:e2 (try 1/3)\nslab kmalloc-8k start ffff8c80958a6000 pointer offset 4160 size 8192\nlist_add corruption. prev->next should be next (ffff8c808a7488f8), but was ffff8c80958a7040. (prev=ffff8c80958a7040).\nmt76_wcid_add_poll+0x95/0xd0 [mt76]\nmt7925_mac_add_txs.part.0+0xa5/0xe0 [mt7925_common]\nmt7925_rx_check+0xa7/0xc0 [mt7925_common]\nmt76_dma_rx_poll+0x50d/0x790 [mt76]\nmt792x_poll_rx+0x52/0xe0 [mt792x_lib]", "A flaw was found in the Linux kernel's mt76 Wi-Fi driver. This vulnerability occurs due to improper handling of Wi-Fi station additions, where the driver fails to adequately verify existing client connections. A remote attacker could exploit this by manipulating Wi-Fi authentication processes, leading to corruption of internal kernel data structures. This corruption can cause system instability and a denial of service, making the affected system unresponsive."], "name": "CVE-2026-63832", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-63832\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-63832\nhttps://lore.kernel.org/linux-cve-announce/2026071908-CVE-2026-63832-d93b@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4911e4cb157cf87d5bdb3fa8e0c200032443371e,3c499851753a24d2e148d4e9ca51764c0c51554e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4911e4cb157cf87d5bdb3fa8e0c200032443371e,55e014aaec650ede08b693ba59c8d0443f13f11c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4911e4cb157cf87d5bdb3fa8e0c200032443371e,20b126920a259df4d7dcae19fcfe2c57a74d6b2e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "c9389e3f9453ec2d710e61830eafedddfd561226"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "57d3f833087942ded1a8765b1b361454d3d39e8f"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.12.13,6.13)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.13.2,6.14)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.14"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.14)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.38,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.3,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-07-22T00:15:03.052881+00:00", "updated": "2026-08-01T08:15:03.945771+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}