CVE-2022-49533

ath11k: Change max no of active probe SSID and BSSID to fw capability

MEDIUM
5.5
CVSS Score
Published: February 26, 2025 at 02:13 AM UTC
Updated: August 5, 2026 at 09:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.18 ≤ v < 5.18.35.6 ≤ v < 5.17.145.6 ≤ v < 5.18.35.6 ≤ v < 5.195.6d5c65159f2895379e11ca13f62feabe93278985d
Vendor states this is fixed in 210505788f1d243232e21ef660efcd4838890ce8 (fixed)
Vendor states this is fixed in 50dc9ce9f80554a88e33b73c30851acf2be36ed3 (fixed)
Vendor states this is fixed in ec5dfa1d66f2f71a48dab027d26a9fa78eb0f58f (fixed)
Vendor states this is fixed in 5.17.14 (unaffected)
Vendor states this is fixed in 5.18.3 (unaffected)
Vendor states this is fixed in 5.19 (unaffected)
Vendor states this is fixed in 5.6 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/210505788f1d243232e21ef660efcd4838890ce8
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/50dc9ce9f80554a88e33b73c30851acf2be36ed3
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ec5dfa1d66f2f71a48dab027d26a9fa78eb0f58f

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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