{"id":"CVE-2026-98936","summary":"wifi: ath11k: reset ar-\u003enum_stations on hardware start","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: reset ar-\u003enum_stations on hardware start\n\nWhen (multiple) hw restart occurs, we end up in a situation where we\ncannot accept new stations / mesh peers. This seems to be the\n'num_stations' in 'struct ath11k' that did not get reset properly in\nthis case. In ath11k_mac_op_start(), it was indeed the only accounting var\nthat did not get reset so let's clear it too.\n\nThis avoids problems like those:\n\n\t[1248828.088023] WARNING: CPU: 0 PID: 12281 at net/mac80211/util.c:1682 ieee80211_reconfig_stations+0x98/0xc0\n\t[1248828.088115] Call trace:\n\t[1248828.088116]  ieee80211_reconfig_stations+0x98/0xc0 (P)\n\t[1248828.088119]  ieee80211_reconfig+0x774/0x1438\n\t[1248828.088123]  ieee80211_restart_work+0x10c/0x178\n\t[1248828.088127]  process_one_work+0x178/0x3c0\n\t[1248828.088130]  worker_thread+0x280/0x440\n\t[1248828.088133]  kthread+0xe0/0xf8\n\t[1248828.088137]  ret_from_fork+0x10/0x20\n\t[1248828.088141] ---[ end trace 0000000000000000 ]---\n\t[1248836.686604] ath11k_pci 0000:04:00.0: refusing to associate station: too many connected already (128)\n\t[1248836.686609] ath11k_pci 0000:04:00.0: Failed to add station: xx:xx:xx:xx:xx:xx for VDEV: 1\n\nTested-on: QCN9074 hw1.0 PCI WLAN.HK.2.9.0.1-01977-QCAHKSWPL_SILICONZ-1","modified":"2026-11-04T14:27:24.425077075Z","published":"2026-10-23T12:11:48.632Z","related":["SUSE-SU-2026:5091-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98936.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/302b622d5f3c9ef5efa36e41e69d278599265cfc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5f814ca9a68fd12a51fe82c36a4a876f5b8329f1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/60142eb2afda34508e640a3ff2a54c90e51525cc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7e0ad05ebc72fffba2bdf2400400902d94ed7272"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9a9467f7cc633b31e4c34a2c56aa095e0c3fa853"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a78f2d082f72e3c140c4542cade7f7f56f3cc62d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c27779d3679c695674747744390f97a5424a0dc8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c3ac51701e925e8d50479ae2fddca51a09f636e8"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98936.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98936"},{"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":"d5c65159f2895379e11ca13f62feabe93278985d"},{"fixed":"302b622d5f3c9ef5efa36e41e69d278599265cfc"},{"fixed":"5f814ca9a68fd12a51fe82c36a4a876f5b8329f1"},{"fixed":"a78f2d082f72e3c140c4542cade7f7f56f3cc62d"},{"fixed":"60142eb2afda34508e640a3ff2a54c90e51525cc"},{"fixed":"c3ac51701e925e8d50479ae2fddca51a09f636e8"},{"fixed":"9a9467f7cc633b31e4c34a2c56aa095e0c3fa853"},{"fixed":"c27779d3679c695674747744390f97a5424a0dc8"},{"fixed":"7e0ad05ebc72fffba2bdf2400400902d94ed7272"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-98936.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.6.0"},{"fixed":"5.10.273"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.224"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.191"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.160"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.113"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.56"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.10"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-98936.json"}}],"schema_version":"1.9.2"}