---
id: CVE-2022-49503
title: 'ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix

  The "rxstatus->rs_keyix" eventually gets passed to test_bit() so we need to
  ensure that i…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 <
    0bcb528402cd5e1a6e1833e956fd58a12d509e8e
  - >-
    Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 <
    a048e0c3caa852397b7b50d4c82a0415c05f7ac3
  - >-
    Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 <
    4bdcf32c965c27f55ccc4ee71c1927131115b0bb
  - >-
    Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 <
    2326d398ccd41ba6d93b8346532dfa432ab00fee
  - >-
    Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 <
    461e4c1f199076275f16bf6f3d3e42c6b6c79f33
  - >-
    Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 <
    7f6defe0fabc79f29603c6fa3c80e4fe0456a3e9
  - >-
    Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 <
    eda518db7db16c360bc84379d90675650daa3048
  - >-
    Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 <
    3dad3fed5672828c7fb0465cb66a3d9a70952fa6
  - >-
    Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 <
    2dc509305cf956381532792cb8dceef2b1504765
  - Linux 3.15
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T19:45:42.568470Z'
published: '2025-02-26'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T19:49:39.930Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2022-49503'
references:
  - url: 'https://git.kernel.org/stable/c/0bcb528402cd5e1a6e1833e956fd58a12d509e8e'
  - url: 'https://git.kernel.org/stable/c/a048e0c3caa852397b7b50d4c82a0415c05f7ac3'
  - url: 'https://git.kernel.org/stable/c/4bdcf32c965c27f55ccc4ee71c1927131115b0bb'
  - url: 'https://git.kernel.org/stable/c/2326d398ccd41ba6d93b8346532dfa432ab00fee'
  - url: 'https://git.kernel.org/stable/c/461e4c1f199076275f16bf6f3d3e42c6b6c79f33'
  - url: 'https://git.kernel.org/stable/c/7f6defe0fabc79f29603c6fa3c80e4fe0456a3e9'
  - url: 'https://git.kernel.org/stable/c/eda518db7db16c360bc84379d90675650daa3048'
  - url: 'https://git.kernel.org/stable/c/3dad3fed5672828c7fb0465cb66a3d9a70952fa6'
  - url: 'https://git.kernel.org/stable/c/2dc509305cf956381532792cb8dceef2b1504765'
tags:
  - cve.org
epss: 0.00281
epssPercentile: 0.20781
ingestedAt: '2026-11-05T22:38:31.575Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix

The "rxstatus->rs_keyix" eventually gets passed to test_bit() so we need to
ensure that it is within the bitmap.

drivers/net/wireless/ath/ath9k/common.c:46 ath9k_cmn_rx_accept()
error: passing untrusted data 'rx_stats->rs_keyix' to 'test_bit()'

## Affected

- `Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 < 0bcb528402cd5e1a6e1833e956fd58a12d509e8e`
- `Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 < a048e0c3caa852397b7b50d4c82a0415c05f7ac3`
- `Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 < 4bdcf32c965c27f55ccc4ee71c1927131115b0bb`
- `Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 < 2326d398ccd41ba6d93b8346532dfa432ab00fee`
- `Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 < 461e4c1f199076275f16bf6f3d3e42c6b6c79f33`
- `Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 < 7f6defe0fabc79f29603c6fa3c80e4fe0456a3e9`
- `Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 < eda518db7db16c360bc84379d90675650daa3048`
- `Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 < 3dad3fed5672828c7fb0465cb66a3d9a70952fa6`
- `Linux >= 4ed1a8d4a25711f780b96920fff2bb531229e322 < 2dc509305cf956381532792cb8dceef2b1504765`
- `Linux 3.15`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.