cve-2024-49937
Vulnerability from cvelistv5
Published
2024-10-21 18:01
Modified
2024-12-19 09:29
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Set correct chandef when starting CAC When starting CAC in a mode other than AP mode, it return a "WARNING: CPU: 0 PID: 63 at cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]" caused by the chandef.chan being null at the end of CAC. Solution: Ensure the channel definition is set for the different modes when starting CAC to avoid getting a NULL 'chan' at the end of CAC. Call Trace: ? show_regs.part.0+0x14/0x16 ? __warn+0x67/0xc0 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? report_bug+0xa7/0x130 ? exc_overflow+0x30/0x30 ? handle_bug+0x27/0x50 ? exc_invalid_op+0x18/0x60 ? handle_exception+0xf6/0xf6 ? exc_overflow+0x30/0x30 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? exc_overflow+0x30/0x30 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? regulatory_propagate_dfs_state.cold+0x1b/0x4c [cfg80211] ? cfg80211_propagate_cac_done_wk+0x1a/0x30 [cfg80211] ? process_one_work+0x165/0x280 ? worker_thread+0x120/0x3f0 ? kthread+0xc2/0xf0 ? process_one_work+0x280/0x280 ? kthread_complete_and_exit+0x20/0x20 ? ret_from_fork+0x19/0x24 [shorten subject, remove OCB, reorder cases to match previous list]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/04053e55dd50741cf6c59b9bbaa4238218c05c70Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/20361712880396e44ce80aaeec2d93d182035651Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/95f32191e50b75e0f75fae1bb925cdf51d8df0a3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c628026563f4ea9e0413dd4b69429e4a1db240b1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f4dbfda159e43d49b43003cc3c2914751939035fPatch
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
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        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-49937",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T13:38:15.992141Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2024-10-22T13:38:51.114Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/wireless/nl80211.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
              "version": "6.1.113",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.6.55",
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              "version": "6.10.14",
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              "version": "6.11.3",
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              "versionType": "original_commit_for_fix"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: Set correct chandef when starting CAC\n\nWhen starting CAC in a mode other than AP mode, it return a\n\"WARNING: CPU: 0 PID: 63 at cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]\"\ncaused by the chandef.chan being null at the end of CAC.\n\nSolution: Ensure the channel definition is set for the different modes\nwhen starting CAC to avoid getting a NULL \u0027chan\u0027 at the end of CAC.\n\n Call Trace:\n  ? show_regs.part.0+0x14/0x16\n  ? __warn+0x67/0xc0\n  ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]\n  ? report_bug+0xa7/0x130\n  ? exc_overflow+0x30/0x30\n  ? handle_bug+0x27/0x50\n  ? exc_invalid_op+0x18/0x60\n  ? handle_exception+0xf6/0xf6\n  ? exc_overflow+0x30/0x30\n  ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]\n  ? exc_overflow+0x30/0x30\n  ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]\n  ? regulatory_propagate_dfs_state.cold+0x1b/0x4c [cfg80211]\n  ? cfg80211_propagate_cac_done_wk+0x1a/0x30 [cfg80211]\n  ? process_one_work+0x165/0x280\n  ? worker_thread+0x120/0x3f0\n  ? kthread+0xc2/0xf0\n  ? process_one_work+0x280/0x280\n  ? kthread_complete_and_exit+0x20/0x20\n  ? ret_from_fork+0x19/0x24\n\n[shorten subject, remove OCB, reorder cases to match previous list]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:29:24.314Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/04053e55dd50741cf6c59b9bbaa4238218c05c70"
        },
        {
          "url": "https://git.kernel.org/stable/c/f4dbfda159e43d49b43003cc3c2914751939035f"
        },
        {
          "url": "https://git.kernel.org/stable/c/c628026563f4ea9e0413dd4b69429e4a1db240b1"
        },
        {
          "url": "https://git.kernel.org/stable/c/20361712880396e44ce80aaeec2d93d182035651"
        }
      ],
      "title": "wifi: cfg80211: Set correct chandef when starting CAC",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-49937",
    "datePublished": "2024-10-21T18:01:57.730Z",
    "dateReserved": "2024-10-21T12:17:06.042Z",
    "dateUpdated": "2024-12-19T09:29:24.314Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-49937\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-10-21T18:15:15.477\",\"lastModified\":\"2024-11-13T17:02:28.620\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: cfg80211: Set correct chandef when starting CAC\\n\\nWhen starting CAC in a mode other than AP mode, it return a\\n\\\"WARNING: CPU: 0 PID: 63 at cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]\\\"\\ncaused by the chandef.chan being null at the end of CAC.\\n\\nSolution: Ensure the channel definition is set for the different modes\\nwhen starting CAC to avoid getting a NULL \u0027chan\u0027 at the end of CAC.\\n\\n Call Trace:\\n  ? show_regs.part.0+0x14/0x16\\n  ? __warn+0x67/0xc0\\n  ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]\\n  ? report_bug+0xa7/0x130\\n  ? exc_overflow+0x30/0x30\\n  ? handle_bug+0x27/0x50\\n  ? exc_invalid_op+0x18/0x60\\n  ? handle_exception+0xf6/0xf6\\n  ? exc_overflow+0x30/0x30\\n  ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]\\n  ? exc_overflow+0x30/0x30\\n  ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]\\n  ? regulatory_propagate_dfs_state.cold+0x1b/0x4c [cfg80211]\\n  ? cfg80211_propagate_cac_done_wk+0x1a/0x30 [cfg80211]\\n  ? process_one_work+0x165/0x280\\n  ? worker_thread+0x120/0x3f0\\n  ? kthread+0xc2/0xf0\\n  ? process_one_work+0x280/0x280\\n  ? kthread_complete_and_exit+0x20/0x20\\n  ? ret_from_fork+0x19/0x24\\n\\n[shorten subject, remove OCB, reorder cases to match previous list]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: cfg80211: Establecer chandef correcto al iniciar CAC Al iniciar CAC en un modo distinto del modo AP, devuelve un \\\"ADVERTENCIA: CPU: 0 PID: 63 en cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]\\\" causado por chandef.chan que es nulo al final de CAC. Soluci\u00f3n: Aseg\u00farese de que la definici\u00f3n del canal est\u00e9 configurada para los diferentes modos al iniciar CAC para evitar obtener un \u0027chan\u0027 NULL al final de CAC. Seguimiento de llamadas: ? show_regs.part.0+0x14/0x16 ? __warn+0x67/0xc0 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? report_bug+0xa7/0x130 ? exc_overflow+0x30/0x30 ? handle_bug+0x27/0x50 ? exc_invalid_op+0x18/0x60 ? handle_exception+0xf6/0xf6 ? exc_overflow+0x30/0x30 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? exc_overflow+0x30/0x30 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? regulatory_propagate_dfs_state.cold+0x1b/0x4c [cfg80211] ? cfg80211_propagate_cac_done_wk+0x1a/0x30 [cfg80211] ? process_one_work+0x165/0x280 ? worker_thread+0x120/0x3f0 ? kthread+0xc2/0xf0 ? process_one_work+0x280/0x280 ? kthread_complete_and_exit+0x20/0x20 ? ret_from_fork+0x19/0x24 [acortar asunto, eliminar OCB, reordenar casos para que coincidan con la lista anterior]\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.1.113\",\"matchCriteriaId\":\"180292D6-C3A4-4883-98A3-77F4D56F8081\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.55\",\"matchCriteriaId\":\"E90B9576-56C4-47BC-AAB0-C5B2D438F5D0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.10.14\",\"matchCriteriaId\":\"4C16BCE0-FFA0-4599-BE0A-1FD65101C021\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.11\",\"versionEndExcluding\":\"6.11.3\",\"matchCriteriaId\":\"54D9C704-D679-41A7-9C40-10A6B1E7FFE9\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/04053e55dd50741cf6c59b9bbaa4238218c05c70\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/20361712880396e44ce80aaeec2d93d182035651\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/95f32191e50b75e0f75fae1bb925cdf51d8df0a3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c628026563f4ea9e0413dd4b69429e4a1db240b1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f4dbfda159e43d49b43003cc3c2914751939035f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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