{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-47714",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-21T13:02:52.416293Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-21T13:04:18.545Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7996/mcu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "50d87e3b70980abc090676b6b4703fcbd96221f9",
              "status": "affected",
              "version": "98686cd21624c75a043e96812beadddf4f6f48e5",
              "versionType": "git"
            },
            {
              "lessThan": "8f51fc8a9e2fd96363d8ec3f4ee4b78dd64754e3",
              "status": "affected",
              "version": "98686cd21624c75a043e96812beadddf4f6f48e5",
              "versionType": "git"
            },
            {
              "lessThan": "33954930870c18ec549e4bca0eeff43e252cb740",
              "status": "affected",
              "version": "98686cd21624c75a043e96812beadddf4f6f48e5",
              "versionType": "git"
            },
            {
              "lessThan": "f98c3de92bb05dac4a4969df8a4595ed380b4604",
              "status": "affected",
              "version": "98686cd21624c75a043e96812beadddf4f6f48e5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7996/mcu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.2"
            },
            {
              "lessThan": "6.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.54",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.10.13",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11.2",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: use hweight16 to get correct tx antenna\n\nThe chainmask is u16 so using hweight8 cannot get correct tx_ant.\nWithout this patch, the tx_ant of band 2 would be -1 and lead to the\nfollowing issue:\nBUG: KASAN: stack-out-of-bounds in mt7996_mcu_add_sta+0x12e0/0x16e0 [mt7996e]"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.6,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - The vulnerable path is entered from mac80211 station insertion driven by an over-the-air association from a nearby 802.11 peer, with the trigger conditions (EHT/HE/VHT beamforming capability bits, bandwidth, MCS/NSS fields) taken straight from the attacker\u0027s association request. This requires radio proximity to the AP\u0027s 6 GHz band rather than routable network access, which is Adjacent per the WiFi frame-injection guidance.\nAC:L - On the affected hardware the miscount is deterministic \u2014 band 2\u0027s chainmask sits entirely above bit 7, so hweight8() always returns 0 and tx_ant is always -1 \u2014 and the attacker simply associates while advertising SU-beamformee support to reach matrix[-1][ncol] every time. There is no race, no memory-layout requirement, and the attempt can be repeated indefinitely by re-associating.\nPR:N - In AP mode hostapd creates the station object at association, before the 4-way handshake or any credential validation, so mt7996_mac_sta_add() \u2192 mt7996_mcu_sta_bfer_tlv() runs for an attacker holding no key and no account on the target. Open and mesh/IBSS deployments have no authentication gate at all.\nUI:N - The attacker performs the association itself and the AP\u0027s kernel processes it automatically; no action by any user or administrator on the victim system is needed.\nS:U - The out-of-bounds read and the resulting bogus firmware-command fields stay within the kernel driver\u0027s own security authority, crossing no VM, IOMMU, or sandbox boundary.\nC:L - matrix[-1][ncol] reads adjacent kernel stack memory outside the const array, exposing stack contents that are then written into the sta_rec_bf TLV and transmitted to the WiFi firmware. The read is strictly bounded to the four bytes immediately preceding a 16-byte object at a fixed negative offset with no attacker-directed address and no channel returning the data over the air, so it is a small bounded leak rather than arbitrary read.\nI:L - The uninitialized out-of-bounds byte and the underflowed antenna count (ibf_nrow = 0xFF, mem_20m/mem_total derived from stray stack data) are programmed into the chip\u0027s beamforming profile via the MCU STA_REC_UPDATE command, a remotely-influenced corruption of device configuration state. No kernel memory is written out of bounds and no control-flow influence is available, so the modification is limited rather than arbitrary.\nA:H - The condition is a KASAN-detected stack-out-of-bounds in mt7996_mcu_add_sta(), which oopses and panics outright on kernels built with KASAN plus panic_on_warn or kasan.fault=panic \u2014 common in vendor and hardened builds. Independently, feeding out-of-range beamforming memory parameters and a 0xFF antenna count to the WiFi MCU can wedge the firmware and take the radio down, and the attacker can retrigger it on every association."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:39:40.668Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/50d87e3b70980abc090676b6b4703fcbd96221f9"
        },
        {
          "url": "https://git.kernel.org/stable/c/8f51fc8a9e2fd96363d8ec3f4ee4b78dd64754e3"
        },
        {
          "url": "https://git.kernel.org/stable/c/33954930870c18ec549e4bca0eeff43e252cb740"
        },
        {
          "url": "https://git.kernel.org/stable/c/f98c3de92bb05dac4a4969df8a4595ed380b4604"
        }
      ],
      "title": "wifi: mt76: mt7996: use hweight16 to get correct tx antenna",
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-47714",
    "datePublished": "2024-10-21T11:53:46.090Z",
    "dateReserved": "2024-09-30T16:00:12.948Z",
    "dateUpdated": "2026-08-05T11:39:40.668Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}