CVE-2022-50871 (GCVE-0-2022-50871)
Vulnerability from cvelistv5
Published
2025-12-30 12:15
Modified
2026-08-05 08:59
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: Fix qmi_msg_handler data structure initialization qmi_msg_handler is required to be null terminated by QMI module. There might be a case where a handler for a msg id is not present in the handlers array which can lead to infinite loop while searching the handler and therefore out of bound access in qmi_invoke_handler(). Hence update the initialization in qmi_msg_handler data structure. Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
References
Impacted products
Vendor Product Version
Linux Linux Version: d5c65159f2895379e11ca13f62feabe93278985d
Version: d5c65159f2895379e11ca13f62feabe93278985d
Version: d5c65159f2895379e11ca13f62feabe93278985d
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath11k/qmi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d5d71de448f36e34592f7c81b5e300d3e8dbb735",
              "status": "affected",
              "version": "d5c65159f2895379e11ca13f62feabe93278985d",
              "versionType": "git"
            },
            {
              "lessThan": "a10e1530c424bb277b4edc7def0195857a548495",
              "status": "affected",
              "version": "d5c65159f2895379e11ca13f62feabe93278985d",
              "versionType": "git"
            },
            {
              "lessThan": "ed3725e15a154ebebf44e0c34806c57525483f92",
              "status": "affected",
              "version": "d5c65159f2895379e11ca13f62feabe93278985d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath11k/qmi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.6"
            },
            {
              "lessThan": "5.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.16",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.2",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: Fix qmi_msg_handler data structure initialization\n\nqmi_msg_handler is required to be null terminated by QMI module.\nThere might be a case where a handler for a msg id is not present in the\nhandlers array which can lead to infinite loop while searching the handler\nand therefore out of bound access in qmi_invoke_handler().\nHence update the initialization in qmi_msg_handler data structure.\n\nTested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is in ath11k QMI indication handling over AF_QIPCRTR; QRTR delivers datagrams to the QMI client port with no connected-peer filter, so an unprivileged local process can send a crafted QMI message and reach qmi_invoke_handler(). This is host IPC, not WiFi frame processing, so Adjacent/Network do not apply.\nAC:L - The attacker only needs to send a QMI indication/request with a msg_id absent from ath11k_qmi_msg_handlers[]; the missing null terminator makes the OOB walk deterministic. Discovering the client port (ephemeral QRTR range) is fully under attacker control.\nPR:L - AF_QIPCRTR sockets can be created and bound to ephemeral ports without privileges; no CAP_NET_ADMIN is required to send to another local QRTR port. Real root is not required.\nUI:N - Exploitation is a direct local send to the ath11k QMI socket; no victim action is required.\nS:U - Impact is confined to the host kernel\u0027s memory/control-flow integrity; there is no VM/IOMMU/security-authority boundary crossing.\nC:H - qmi_invoke_handler() performs an unbounded out-of-bounds read of adjacent kernel memory while scanning for a handler, and a crafted type/msg_id can select a false adjacent handler entry, enabling further disclosure primitives.\nI:H - Matching an out-of-bounds handler descriptor can invoke a garbage function pointer and/or run qmi_decode_message() with attacker-influenced ei/decoded_size, yielding memory corruption and control-flow hijack potential.\nA:H - The same path can soft-lock in an unbounded scan, oops on unmapped access, or crash when a bogus handler is invoked, as confirmed by the sibling ath12k KASAN global-OOB report for the identical terminator bug."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:59:55.262Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d5d71de448f36e34592f7c81b5e300d3e8dbb735"
        },
        {
          "url": "https://git.kernel.org/stable/c/a10e1530c424bb277b4edc7def0195857a548495"
        },
        {
          "url": "https://git.kernel.org/stable/c/ed3725e15a154ebebf44e0c34806c57525483f92"
        }
      ],
      "title": "wifi: ath11k: Fix qmi_msg_handler data structure initialization",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50871",
    "datePublished": "2025-12-30T12:15:41.372Z",
    "dateReserved": "2025-12-30T12:06:07.136Z",
    "dateUpdated": "2026-08-05T08:59:55.262Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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