wifi: ath5k: do not access array OOB_CVE-2026-46307

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath5k: do not access array OOB\n\nVincent reports:\n> The ath5k driver seems to do an array-index-out-of-bounds access as\n> shown by the UBSAN kernel message:\n> UBSAN: array-index-out-of-bounds in drivers/net/wireless/ath/ath5k/base.c:1741:20\n> index 4 is out of range for type 'ieee80211_tx_rate [4]'\n> ...\n> Call Trace:\n>  <TASK>\n>  dump_stack_lvl+0x5d/0x80\n>  ubsan_epilogue+0x5/0x2b\n>  __ubsan_handle_out_of_bounds.cold+0x46/0x4b\n>  ath5k_tasklet_tx+0x4e0/0x560 [ath5k]\n>  tasklet_action_common+0xb5/0x1c0\n\nIt is real. 'ts->ts_final_idx' can be 3 on 5212, so:\n   info->status.rates[ts->ts_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 'idx = -1' 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->status, i.e. ack_signal.",
    "published": "2026-06-08T15:46:35.059Z",
    "modified": "2026-06-14T04:30:07.952Z",
    "type": "cve",
    "title": "wifi: ath5k: do not access array OOB",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/ecb1c163166759dec004c1fdb9709b8a5992fc8e\nhttps://git.kernel.org/stable/c/9dd6aae4bc7bfa11088d928670a3315eae542769\nhttps://git.kernel.org/stable/c/744c19e266b0d2628c5951439195dcef27eadacf\nhttps://git.kernel.org/stable/c/83226c71af53fb9b3cad40cb9a9a79f36d68c020\nhttps://git.kernel.org/stable/c/d6869537013b1f21b292342752d97868b79b5934\nhttps://git.kernel.org/stable/c/e9f1081bc775146156def0dbc821b92f35d56afb\nhttps://git.kernel.org/stable/c/568173ad9bd0b46cc6cd937dea8791e9b5eefa57\nhttps://git.kernel.org/stable/c/d748603f12baff112caa3ab7d39f50100f010dbd",
    "id": "CVE-2026-46307",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 6d7b97b23e114c8fbb825e6721164d228c1af3fc\nLinux Linux 6d7b97b23e114c8fbb825e6721164d228c1af3fc\nLinux Linux 6d7b97b23e114c8fbb825e6721164d228c1af3fc\nLinux Linux 6d7b97b23e114c8fbb825e6721164d228c1af3fc\nLinux Linux 6d7b97b23e114c8fbb825e6721164d228c1af3fc\nLinux Linux 6d7b97b23e114c8fbb825e6721164d228c1af3fc\nLinux Linux 6d7b97b23e114c8fbb825e6721164d228c1af3fc\nLinux Linux 6d7b97b23e114c8fbb825e6721164d228c1af3fc\nLinux Linux 3.0",
    "sourceHref": "",
    "cvss": {
        "score": 8.3,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "6d7b97b23e114c8fbb825e6721164d228c1af3fc",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
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    "ai_score": 0
}