{"cve":"CVE-2026-98936","nvd":{"published":"2026-10-23T13:17:14.490","modified":"2026-10-23T13:17:14.490","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: reset ar->num_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","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/60142eb2afda34508e640a3ff2a54c90e51525cc","https://git.kernel.org/stable/c/7e0ad05ebc72fffba2bdf2400400902d94ed7272","https://git.kernel.org/stable/c/9a9467f7cc633b31e4c34a2c56aa095e0c3fa853","https://git.kernel.org/stable/c/c27779d3679c695674747744390f97a5424a0dc8","https://git.kernel.org/stable/c/c3ac51701e925e8d50479ae2fddca51a09f636e8"],"products":[],"source":"nvd","synced_at":"2026-10-23T16:39:28.036610720+00:00"},"epss":{"cve":"CVE-2026-98936","score":0.00168,"percentile":0.06112,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}