{"id":"CVE-2023-52594","state":"PUBLISHED","title":"wifi: ath9k: Fix potential array-index-out-of-bounds read in ath9k_htc_txstatus()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: Fix potential array-index-out-of-bounds read in ath9k_htc_txstatus()\n\nFix an array-index-out-of-bounds read in ath9k_htc_txstatus(). The bug\noccurs when txs->cnt, data from a URB provided by a USB device, is\nbigger than the size of the array txs->txstatus, which is\nHTC_MAX_TX_STATUS. WARN_ON() already checks it, but there is no bug\nhandling code after the check. Make the function return if that is the\ncase.\n\nFound by a modified version of syzkaller.\n\nUBSAN: array-index-out-of-bounds in htc_drv_txrx.c\nindex 13 is out of range for type '__wmi_event_txstatus [12]'\nCall Trace:\n ath9k_htc_txstatus\n ath9k_wmi_event_tasklet\n tasklet_action_common\n __do_softirq\n irq_exit_rxu\n sysvec_apic_timer_interrupt","publishedAt":"2024-03-06T06:45:25.071Z","updatedAt":"2026-05-11T19:29:58.385Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"27876a29de221186c9d5883e5fe5f6da18ef9a45","status":"affected","lessThan":"f44f073c78112ff921a220d01b86d09f2ace59bc","versionType":"git"},{"version":"27876a29de221186c9d5883e5fe5f6da18ef9a45","status":"affected","lessThan":"f11f0fd1ad6c11ae7856d4325fe9d05059767225","versionType":"git"},{"version":"27876a29de221186c9d5883e5fe5f6da18ef9a45","status":"affected","lessThan":"84770a996ad8d7f121ff2fb5a8d149aad52d64c1","versionType":"git"},{"version":"27876a29de221186c9d5883e5fe5f6da18ef9a45","status":"affected","lessThan":"9003fa9a0198ce004b30738766c67eb7373479c9","versionType":"git"},{"version":"27876a29de221186c9d5883e5fe5f6da18ef9a45","status":"affected","lessThan":"25c6f49ef59b7a9b80a3f7ab9e95268a1b01a234","versionType":"git"},{"version":"27876a29de221186c9d5883e5fe5f6da18ef9a45","status":"affected","lessThan":"e4f4bac7d3b64eb75f70cd3345712de6f68a215d","versionType":"git"},{"version":"27876a29de221186c9d5883e5fe5f6da18ef9a45","status":"affected","lessThan":"be609c7002dd4504b15b069cb7582f4c778548d1","versionType":"git"},{"version":"27876a29de221186c9d5883e5fe5f6da18ef9a45","status":"affected","lessThan":"2adc886244dff60f948497b59affb6c6ebb3c348","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ath/ath9k/htc_drv_txrx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.0","versionType":"semver"},{"version":"4.19.307","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.269","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.210","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.149","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.77","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.16","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.4","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ath/ath9k/htc_drv_txrx.c"]}],"references":["https://git.kernel.org/stable/c/f44f073c78112ff921a220d01b86d09f2ace59bc","https://git.kernel.org/stable/c/f11f0fd1ad6c11ae7856d4325fe9d05059767225","https://git.kernel.org/stable/c/84770a996ad8d7f121ff2fb5a8d149aad52d64c1","https://git.kernel.org/stable/c/9003fa9a0198ce004b30738766c67eb7373479c9","https://git.kernel.org/stable/c/25c6f49ef59b7a9b80a3f7ab9e95268a1b01a234","https://git.kernel.org/stable/c/e4f4bac7d3b64eb75f70cd3345712de6f68a215d","https://git.kernel.org/stable/c/be609c7002dd4504b15b069cb7582f4c778548d1","https://git.kernel.org/stable/c/2adc886244dff60f948497b59affb6c6ebb3c348","https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html","https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/52xxx/CVE-2023-52594.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-52594","state":"PUBLISHED","datePublished":"2024-03-06T06:45:25.071Z","dateUpdated":"2026-05-11T19:29:58.385Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-03-02T21:55:42.571Z"},"containers":{"cna":{"title":"wifi: ath9k: Fix potential array-index-out-of-bounds read in ath9k_htc_txstatus()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: Fix potential array-index-out-of-bounds read in ath9k_htc_txstatus()\n\nFix an array-index-out-of-bounds read in ath9k_htc_txstatus(). The bug\noccurs when txs->cnt, data from a URB provided by a USB device, is\nbigger than the size of the array txs->txstatus, which is\nHTC_MAX_TX_STATUS. WARN_ON() already checks it, but there is no bug\nhandling code after the check. Make the function return if that is the\ncase.\n\nFound by a modified version of syzkaller.\n\nUBSAN: array-index-out-of-bounds in htc_drv_txrx.c\nindex 13 is out of range for type '__wmi_event_txstatus [12]'\nCall Trace:\n ath9k_htc_txstatus\n ath9k_wmi_event_tasklet\n tasklet_action_common\n __do_softirq\n irq_exit_rxu\n 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