{"id":"CVE-2026-46307","summary":"wifi: ath5k: do not access array OOB","details":"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 'ieee80211_tx_rate [4]'\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. 'ts-\u003ets_final_idx' 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 '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-\u003estatus, i.e. ack_signal.","modified":"2026-07-10T03:54:20.456968707Z","published":"2026-06-08T15:46:35.059Z","related":["openSUSE-SU-2026:11014-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46307.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/568173ad9bd0b46cc6cd937dea8791e9b5eefa57"},{"type":"WEB","url":"https://git.kernel.org/stable/c/744c19e266b0d2628c5951439195dcef27eadacf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/83226c71af53fb9b3cad40cb9a9a79f36d68c020"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9dd6aae4bc7bfa11088d928670a3315eae542769"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d6869537013b1f21b292342752d97868b79b5934"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d748603f12baff112caa3ab7d39f50100f010dbd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e9f1081bc775146156def0dbc821b92f35d56afb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ecb1c163166759dec004c1fdb9709b8a5992fc8e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46307.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46307"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6d7b97b23e114c8fbb825e6721164d228c1af3fc"},{"fixed":"ecb1c163166759dec004c1fdb9709b8a5992fc8e"},{"fixed":"9dd6aae4bc7bfa11088d928670a3315eae542769"},{"fixed":"744c19e266b0d2628c5951439195dcef27eadacf"},{"fixed":"83226c71af53fb9b3cad40cb9a9a79f36d68c020"},{"fixed":"d6869537013b1f21b292342752d97868b79b5934"},{"fixed":"e9f1081bc775146156def0dbc821b92f35d56afb"},{"fixed":"568173ad9bd0b46cc6cd937dea8791e9b5eefa57"},{"fixed":"d748603f12baff112caa3ab7d39f50100f010dbd"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46307.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"5.10.258"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.209"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.175"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.140"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.88"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.30"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46307.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L"}]}