FKIE_CVE-2026-46307

Vulnerability from fkie_nvd - Published: 2026-06-08 17:16 - Updated: 2026-06-17 10:53
Severity
8.3 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: ath5k: do not access array OOB Vincent reports: > The ath5k driver seems to do an array-index-out-of-bounds access as > shown by the UBSAN kernel message: > UBSAN: array-index-out-of-bounds in drivers/net/wireless/ath/ath5k/base.c:1741:20 > index 4 is out of range for type 'ieee80211_tx_rate [4]' > ... > Call Trace: > <TASK> > dump_stack_lvl+0x5d/0x80 > ubsan_epilogue+0x5/0x2b > __ubsan_handle_out_of_bounds.cold+0x46/0x4b > ath5k_tasklet_tx+0x4e0/0x560 [ath5k] > tasklet_action_common+0xb5/0x1c0 It is real. 'ts->ts_final_idx' can be 3 on 5212, so: info->status.rates[ts->ts_final_idx + 1].idx = -1; with the array defined as: struct ieee80211_tx_rate rates[IEEE80211_TX_MAX_RATES]; while the size is: #define IEEE80211_TX_MAX_RATES 4 is indeed bogus. Set this 'idx = -1' sentinel only if the array index is less than the array size. As mac80211 will not look at rates beyond the size (IEEE80211_TX_MAX_RATES). Note: The effect of the OOB write is negligible. It just overwrites the next member of info->status, i.e. ack_signal.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/568173ad9bd0b46cc6cd937dea8791e9b5eefa57
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/744c19e266b0d2628c5951439195dcef27eadacf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/83226c71af53fb9b3cad40cb9a9a79f36d68c020
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9dd6aae4bc7bfa11088d928670a3315eae542769
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d6869537013b1f21b292342752d97868b79b5934
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d748603f12baff112caa3ab7d39f50100f010dbd
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e9f1081bc775146156def0dbc821b92f35d56afb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ecb1c163166759dec004c1fdb9709b8a5992fc8e
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath5k/base.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ecb1c163166759dec004c1fdb9709b8a5992fc8e",
              "status": "affected",
              "version": "6d7b97b23e114c8fbb825e6721164d228c1af3fc",
              "versionType": "git"
            },
            {
              "lessThan": "9dd6aae4bc7bfa11088d928670a3315eae542769",
              "status": "affected",
              "version": "6d7b97b23e114c8fbb825e6721164d228c1af3fc",
              "versionType": "git"
            },
            {
              "lessThan": "744c19e266b0d2628c5951439195dcef27eadacf",
              "status": "affected",
              "version": "6d7b97b23e114c8fbb825e6721164d228c1af3fc",
              "versionType": "git"
            },
            {
              "lessThan": "83226c71af53fb9b3cad40cb9a9a79f36d68c020",
              "status": "affected",
              "version": "6d7b97b23e114c8fbb825e6721164d228c1af3fc",
              "versionType": "git"
            },
            {
              "lessThan": "d6869537013b1f21b292342752d97868b79b5934",
              "status": "affected",
              "version": "6d7b97b23e114c8fbb825e6721164d228c1af3fc",
              "versionType": "git"
            },
            {
              "lessThan": "e9f1081bc775146156def0dbc821b92f35d56afb",
              "status": "affected",
              "version": "6d7b97b23e114c8fbb825e6721164d228c1af3fc",
              "versionType": "git"
            },
            {
              "lessThan": "568173ad9bd0b46cc6cd937dea8791e9b5eefa57",
              "status": "affected",
              "version": "6d7b97b23e114c8fbb825e6721164d228c1af3fc",
              "versionType": "git"
            },
            {
              "lessThan": "d748603f12baff112caa3ab7d39f50100f010dbd",
              "status": "affected",
              "version": "6d7b97b23e114c8fbb825e6721164d228c1af3fc",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath5k/base.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.0"
            },
            {
              "lessThan": "3.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.30",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath5k: do not access array OOB\n\nVincent reports:\n\u003e The ath5k driver seems to do an array-index-out-of-bounds access as\n\u003e shown by the UBSAN kernel message:\n\u003e UBSAN: array-index-out-of-bounds in drivers/net/wireless/ath/ath5k/base.c:1741:20\n\u003e index 4 is out of range for type \u0027ieee80211_tx_rate [4]\u0027\n\u003e ...\n\u003e Call Trace:\n\u003e  \u003cTASK\u003e\n\u003e  dump_stack_lvl+0x5d/0x80\n\u003e  ubsan_epilogue+0x5/0x2b\n\u003e  __ubsan_handle_out_of_bounds.cold+0x46/0x4b\n\u003e  ath5k_tasklet_tx+0x4e0/0x560 [ath5k]\n\u003e  tasklet_action_common+0xb5/0x1c0\n\nIt is real. \u0027ts-\u003ets_final_idx\u0027 can be 3 on 5212, so:\n   info-\u003estatus.rates[ts-\u003ets_final_idx + 1].idx = -1;\nwith the array defined as:\n   struct ieee80211_tx_rate rates[IEEE80211_TX_MAX_RATES];\nwhile the size is:\n   #define IEEE80211_TX_MAX_RATES  4\nis indeed bogus.\n\nSet this \u0027idx = -1\u0027 sentinel only if the array index is less than the\narray size. As mac80211 will not look at rates beyond the size\n(IEEE80211_TX_MAX_RATES).\n\nNote: The effect of the OOB write is negligible. It just overwrites the\nnext member of info-\u003estatus, i.e. ack_signal."
    }
  ],
  "id": "CVE-2026-46307",
  "lastModified": "2026-06-17T10:53:32.310",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 8.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.5,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-06-08T17:16:49.547",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/568173ad9bd0b46cc6cd937dea8791e9b5eefa57"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/744c19e266b0d2628c5951439195dcef27eadacf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/83226c71af53fb9b3cad40cb9a9a79f36d68c020"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9dd6aae4bc7bfa11088d928670a3315eae542769"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d6869537013b1f21b292342752d97868b79b5934"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d748603f12baff112caa3ab7d39f50100f010dbd"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e9f1081bc775146156def0dbc821b92f35d56afb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ecb1c163166759dec004c1fdb9709b8a5992fc8e"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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