CVE-2026-98329 (GCVE-0-2026-98329)
Vulnerability from cvelistv5
Published
2026-10-06 08:46
Modified
2026-10-19 09:17
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't allow injecting frames wider than the chanctx Frames injected on a monitor interface can carry a radiotap field requesting a bandwidth, which mac80211 passes down to the driver regardless of the the actual operational bandwidth. If the bandwidth requested is too wide, that triggers a warning in hwsim: WARN_ON(hwsim_get_chanwidth(bw) > hwsim_get_chanwidth(confbw)) Drop such frames entirely instead since they cannot be sent.
References
Impacted products
Vendor Product Version
Linux Linux Version: 646e76bb5daf4ca38438c69ffb72cccb605f3466
Version: 646e76bb5daf4ca38438c69ffb72cccb605f3466
Version: 646e76bb5daf4ca38438c69ffb72cccb605f3466
Version: 646e76bb5daf4ca38438c69ffb72cccb605f3466
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/net/mac80211.h",
            "net/mac80211/iface.c",
            "net/mac80211/tx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a5c715eda066cba5ce3372759188ba8636dca629",
              "status": "affected",
              "version": "646e76bb5daf4ca38438c69ffb72cccb605f3466",
              "versionType": "git"
            },
            {
              "lessThan": "73f48f7e16cadfc74f444ccd10c1d3ae253e2e27",
              "status": "affected",
              "version": "646e76bb5daf4ca38438c69ffb72cccb605f3466",
              "versionType": "git"
            },
            {
              "lessThan": "c69718519a81e87284494d0c6e6eb7bdd834707a",
              "status": "affected",
              "version": "646e76bb5daf4ca38438c69ffb72cccb605f3466",
              "versionType": "git"
            },
            {
              "lessThan": "e14bf37bb2b3853012ff160131d1c6233f7a9cc9",
              "status": "affected",
              "version": "646e76bb5daf4ca38438c69ffb72cccb605f3466",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "include/net/mac80211.h",
            "net/mac80211/iface.c",
            "net/mac80211/tx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.7"
            },
            {
              "lessThan": "4.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.112",
                  "versionStartIncluding": "4.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.54",
                  "versionStartIncluding": "4.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.8",
                  "versionStartIncluding": "4.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "4.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: don\u0027t allow injecting frames wider than the chanctx\n\nFrames injected on a monitor interface can carry a radiotap\nfield requesting a bandwidth, which mac80211 passes down to\nthe driver regardless of the the actual operational bandwidth.\n\nIf the bandwidth requested is too wide, that triggers a warning\nin hwsim:\n\n  WARN_ON(hwsim_get_chanwidth(bw) \u003e hwsim_get_chanwidth(confbw))\n\nDrop such frames entirely instead since they cannot be sent."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:17:39.579Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a5c715eda066cba5ce3372759188ba8636dca629"
        },
        {
          "url": "https://git.kernel.org/stable/c/73f48f7e16cadfc74f444ccd10c1d3ae253e2e27"
        },
        {
          "url": "https://git.kernel.org/stable/c/c69718519a81e87284494d0c6e6eb7bdd834707a"
        },
        {
          "url": "https://git.kernel.org/stable/c/e14bf37bb2b3853012ff160131d1c6233f7a9cc9"
        }
      ],
      "title": "wifi: mac80211: don\u0027t allow injecting frames wider than the chanctx",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98329",
    "datePublished": "2026-10-06T08:46:21.887Z",
    "dateReserved": "2026-09-25T10:25:14.341Z",
    "dateUpdated": "2026-10-19T09:17:39.579Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.