{"schema":"threatline.record/2","record":{"id":"CVE-2026-98307","aliases":[],"summary":"wifi: ath11k: cleanup arsta in ath11k_mac_peer_cleanup_all()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: cleanup arsta in ath11k_mac_peer_cleanup_all()\n\nWhen mac80211 removes a sta, it calls .sta_state() which in turn calls\nath11k_mac_station_remove(). In that function we clean up both peers &\narsta related resources.\n\nBut when the firmware crashes, ath11k calls ieee80211_restart_hw(), which\nassumes that all driver related resources are cleaned up beforehand. This\ncleanup is supposedly done by ath11k_mac_peer_cleanup_all() but does not\nin fact free arsta->rx_stats / tx_stats.\n\nExtract the arsta cleanup from ath11k_mac_station_remove() into a\nnew ath11k_mac_station_cleanup() and call it from both there and\nath11k_mac_peer_cleanup_all().\n\nThis should handle kmemleaks reports like:\n\tunreferenced object 0xffffff801ae66400 (size 1024):\n\t  comm \"hostapd\", pid 1306, jiffies 4295011565\n\t  hex dump (first 32 bytes):\n\t    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n\t    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n\t  backtrace (crc d61c08ec):\n\t    kmemleak_alloc+0x3c/0x50\n\t    __kmalloc_cache_noprof+0x2b0/0x3e0\n\t    ath11k_mac_op_sta_state+0x1dc/0xb10\n\t    drv_sta_state+0xac/0x6f8\n\t    sta_info_insert_rcu+0x314/0x5e0\n\t    sta_info_insert+0x14/0x38\n\t    ieee80211_add_station+0x10c/0x1a0\n\t    nl80211_new_station+0x3e8/0x680\n\t    genl_family_rcv_msg_doit+0xc0/0x120\n\t    genl_rcv_msg+0x1b4/0x258\n\t    netlink_rcv_skb+0x4c/0x108\n\t    genl_rcv+0x38/0x60\n\t    netlink_unicast+0x190/0x278\n\t    netlink_sendmsg+0x15c/0x370\n\t    ____sys_sendmsg+0x120/0x290\n\t    ___sys_sendmsg+0x70/0xa0\n\nTested-on: QCN9074 hw1.0 PCI WLAN.HK.2.9.0.1-01977-QCAHKSWPL_SILICONZ-1","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98307","source_modified_at":"2026-10-19T09:17:17.992Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"d5c65159f2895379e11ca13f62feabe93278985d","lessThan":"c4108dce0838ec7d38d782f76f9c007cfe2fff45","status":"affected","versionType":"git"},{"version":"d5c65159f2895379e11ca13f62feabe93278985d","lessThan":"57bc3cd46458eafa1c38e3044a61b7399cde7642","status":"affected","versionType":"git"},{"version":"d5c65159f2895379e11ca13f62feabe93278985d","lessThan":"be1d5e95ec499ed5ee9704aa27dd1407ccf0d0ac","status":"affected","versionType":"git"},{"version":"d5c65159f2895379e11ca13f62feabe93278985d","lessThan":"820b8cff81c796ba20573e04722ab62500713f97","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98307","source_modified_at":"2026-10-19T09:17:17.992Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"5.6","status":"affected"},{"version":"0","lessThan":"5.6","status":"unaffected","versionType":"semver"},{"version":"6.12.112","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.54","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.8","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98307","source_modified_at":"2026-10-19T09:17:17.992Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"57bc3cd46458eafa1c38e3044a61b7399cde7642","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98307","source_modified_at":"2026-10-19T09:17:17.992Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"820b8cff81c796ba20573e04722ab62500713f97","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00175,"percentile":0.06675,"score_date":"2026-10-23"},"published_at":"2026-10-06T08:46:04.301Z","modified_at":"2026-10-19T09:17:17.992Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98307","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:17:17.992Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98307","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/c4108dce0838ec7d38d782f76f9c007cfe2fff45"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/57bc3cd46458eafa1c38e3044a61b7399cde7642"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/be1d5e95ec499ed5ee9704aa27dd1407ccf0d0ac"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/820b8cff81c796ba20573e04722ab62500713f97"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:17:17.992Z","content_hash":"6b60796857dfec290907546dc468b1cd3da5a32514700f0f6c9ef963d4299235"}}