CVE-2022-49533

HIGH

Linux Kernel 5.6-5.18.3 - Buffer Overflow via SSID Probe Request Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: ath11k: Change max no of active probe SSID and BSSID to fw capability The maximum number of SSIDs in a for active probe requests is currently reported as 16 (WLAN_SCAN_PARAMS_MAX_SSID) when registering the driver. The scan_req_params structure only has the capacity to hold 10 SSIDs. This leads to a buffer overflow which can be triggered from wpa_supplicant in userspace. When copying the SSIDs into the scan_req_params structure in the ath11k_mac_op_hw_scan route, it can overwrite the extraie pointer. Firmware supports 16 ssid * 4 bssid, for each ssid 4 bssid combo probe request will be sent, so totally 64 probe requests supported. So set both max ssid and bssid to 16 and 4 respectively. Remove the redundant macros of ssid and bssid. Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01300-QCAHKSWPL_SILICONZ-1

Scores

CVSS v3 7.8
EPSS 0.0029
EPSS Percentile 21.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (11)
linux/Kernel 5.18.0 - 5.18.3linux
linux/Kernel 5.6.0 - 5.17.14linux
Linux/Linux < 5.6
Linux/Linux 5.17.14 - 5.17.*
Linux/Linux 5.18.3 - 5.18.*
Linux/Linux 5.19
Linux/Linux 5.6
Linux/Linux d5c65159f2895379e11ca13f62feabe93278985d - 210505788f1d243232e21ef660efcd4838890ce8
Linux/Linux d5c65159f2895379e11ca13f62feabe93278985d - 50dc9ce9f80554a88e33b73c30851acf2be36ed3
Linux/Linux d5c65159f2895379e11ca13f62feabe93278985d - ec5dfa1d66f2f71a48dab027d26a9fa78eb0f58f
... and 1 more
Published Feb 26, 2025
Tracked Since Feb 18, 2026