{"id":"CVE-2026-98936","revision":"b98728522483463298b437d301cc3b8c","records":[{"revision":"b98728522483463298b437d301cc3b8c","observedAt":"2026-10-23T16:01:20.601+00:00","statement":{"source":"cve-program","id":"CVE-2026-98936","aliases":[],"title":"wifi: ath11k: reset ar->num_stations on hardware start","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","state":0,"publishedAt":"2026-10-23T12:11:48.632+00:00","modifiedAt":"2026-10-23T12:11:48.632+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireless/ath/ath11k/mac.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"d5c65159f2895379e11ca13f62feabe93278985d\",\n                            \"lessThan\": \"60142eb2afda34508e640a3ff2a54c90e51525cc\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d5c65159f2895379e11ca13f62feabe93278985d\",\n                            \"lessThan\": \"c3ac51701e925e8d50479ae2fddca51a09f636e8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d5c65159f2895379e11ca13f62feabe93278985d\",\n                            \"lessThan\": \"9a9467f7cc633b31e4c34a2c56aa095e0c3fa853\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d5c65159f2895379e11ca13f62feabe93278985d\",\n                            \"lessThan\": \"c27779d3679c695674747744390f97a5424a0dc8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d5c65159f2895379e11ca13f62feabe93278985d\",\n                            \"lessThan\": \"7e0ad05ebc72fffba2bdf2400400902d94ed7272\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireless/ath/ath11k/mac.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.6\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.160\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.113\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.56\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.10\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/60142eb2afda34508e640a3ff2a54c90e51525cc","https://git.kernel.org/stable/c/c3ac51701e925e8d50479ae2fddca51a09f636e8","https://git.kernel.org/stable/c/9a9467f7cc633b31e4c34a2c56aa095e0c3fa853","https://git.kernel.org/stable/c/c27779d3679c695674747744390f97a5424a0dc8","https://git.kernel.org/stable/c/7e0ad05ebc72fffba2bdf2400400902d94ed7272"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98936","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98936","identifiers":["CVE-2026-98936"]},"retained":false,"historicalAffected":[]}],"coverage":[]}