wifi: mt76: mt7915: fix oops on non-dbdc mt7986

{
  "id": "0d779d4e54149d5a3eca599e6e97c320d622c2871e5d0eb50c742ed7b5b49f7a",
  "url": "https://osv.dev/vulnerability/CVE-2024-47715",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: mt76: mt7915: fix oops on non-dbdc mt7986",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: fix oops on non-dbdc mt7986 mt7915_band_config() sets band_idx = 1 on the main phy for mt7986 with MT7975_ONE_ADIE or MT7976_ONE_ADIE. Commit 0335c034e726 (\"wifi: mt76: fix race condition related to checking tx queue fill status\") introduced a dereference of the phys array indirectly indexed by band_idx via wcid->phy_idx in mt76_wcid_cleanup(). This caused the following Oops on affected mt7986 devices: Unable to handle kernel read from unreadable memory at virtual address 0000000000000024 Mem abort info: ESR = 0x0000000096000005 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x05: level 1 translation fault Data abort info: ISV = 0, ISS = 0x00000005 CM = 0, WnR = 0 user pgtable: 4k pages, 39-bit VAs, pgdp=0000000042545000 [0000000000000024] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000 Internal error: Oops: 0000000096000005 [#1] SMP Modules linked in: ... mt7915e mt76_connac_lib mt76 mac80211 cfg80211 ... CPU: 2 PID: 1631 Comm: hostapd Not tainted 5.15.150 #0 Hardware name: ZyXEL EX5700 (Telenor) (DT) pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : mt76_wcid_cleanup+0x84/0x22c [mt76] lr : mt76_wcid_cleanup+0x64/0x22c [mt76] sp : ffffffc00a803700 x29: ffffffc00a803700 x28: ffffff80008f7300 x27: ffffff80003f3c00 x26: ffffff80000a7880 x25: ffffffc008c26e00 x24: 0000000000000001 x23: ffffffc000a68114 x22: 0000000000000",
    "evidence": "osv:CVE-2024-47715",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.54",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.10.13",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.11.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-47715",
      "aliases": [
        "CVE-2024-47715"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d2defcddfe90b3be0cfccc2482495ab1fb759586"
                },
                {
                  "fixed": "818dd118f4a997f8b4fe9c010b22402d410a2424"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "introduced": "0335c034e7265d36d956e806f33202c94a8a9860"
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                {
                  "fixed": "7c128f3ff0be5802aef66f332e4bba6afe98735e"
                },
                {
                  "fixed": "a94d2bd111b39f0c2c7fcbfbf8276ab98c3b8353"
                },
                {
                  "fixed": "862bf7cbd772c2bad570ef0c5b5556a1330656dd"
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            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6.6.48"
                },
                {
                  "fixed": "6.6.54"
                }
              ]
            }
          ],
          "versions": [
            "v6.6.53",
            "v6.6.52",
            "v6.6.51",
            "v6.6.50",
            "v6.6.49",
            "v6.6.48"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-47715.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6.6.54"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.10.13"
                },
                {
                  "fixed": "6.11.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-47715.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.491904840Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/7c128f3ff0be5802aef66f332e4bba6afe98735e",
        "https://git.kernel.org/stable/c/818dd118f4a997f8b4fe9c010b22402d410a2424",
        "https://git.kernel.org/stable/c/862bf7cbd772c2bad570ef0c5b5556a1330656dd",
        "https://git.kernel.org/stable/c/a94d2bd111b39f0c2c7fcbfbf8276ab98c3b8353",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/47xxx/CVE-2024-47715.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-47715",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/47xxx/CVE-2024-47715.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-47715",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 505520,
  "published_at": "2024-10-21T11:53:46.772+00:00"
}