---
id: CVE-2022-50297
title: 'wifi: ath9k: verify the expected usb_endpoints are present'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: ath9k: verify the expected usb_endpoints are present

  The bug arises when a USB device claims to be an ATH9K but doesn't
  have the expected endpoints. (In this cas…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= fb9987d0f748c983bb795a86f47522313f701a08 <
    932f0a5e829fb0b823f96d7fa9a0f4fc96660b77
  - >-
    Linux >= fb9987d0f748c983bb795a86f47522313f701a08 <
    d008a202a0528a058bac658e657c010ce8534f4a
  - >-
    Linux >= fb9987d0f748c983bb795a86f47522313f701a08 <
    d64436af0bc3c9e579be761d7684f228fb95f3bb
  - >-
    Linux >= fb9987d0f748c983bb795a86f47522313f701a08 <
    ca57748593ddd8e46d033fbaeb9d01ec533a6bfe
  - >-
    Linux >= fb9987d0f748c983bb795a86f47522313f701a08 <
    1824ccabee5445347b83642e4087cc2eca070343
  - >-
    Linux >= fb9987d0f748c983bb795a86f47522313f701a08 <
    c319196a0e34ed2e66d6f876f58d8d446335c2a7
  - >-
    Linux >= fb9987d0f748c983bb795a86f47522313f701a08 <
    2d2eccf52ea0215c8d386b62af0b5fd4fc122bd5
  - >-
    Linux >= fb9987d0f748c983bb795a86f47522313f701a08 <
    0b7e6d681e00a96cde2b32a15ffa70e1be2e3209
  - >-
    Linux >= fb9987d0f748c983bb795a86f47522313f701a08 <
    16ef02bad239f11f322df8425d302be62f0443ce
  - Linux 2.6.35
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:09:12.464502Z'
published: '2025-09-15'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:10:33.617Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2022-50297'
references:
  - url: 'https://git.kernel.org/stable/c/932f0a5e829fb0b823f96d7fa9a0f4fc96660b77'
  - url: 'https://git.kernel.org/stable/c/d008a202a0528a058bac658e657c010ce8534f4a'
  - url: 'https://git.kernel.org/stable/c/d64436af0bc3c9e579be761d7684f228fb95f3bb'
  - url: 'https://git.kernel.org/stable/c/ca57748593ddd8e46d033fbaeb9d01ec533a6bfe'
  - url: 'https://git.kernel.org/stable/c/1824ccabee5445347b83642e4087cc2eca070343'
  - url: 'https://git.kernel.org/stable/c/c319196a0e34ed2e66d6f876f58d8d446335c2a7'
  - url: 'https://git.kernel.org/stable/c/2d2eccf52ea0215c8d386b62af0b5fd4fc122bd5'
  - url: 'https://git.kernel.org/stable/c/0b7e6d681e00a96cde2b32a15ffa70e1be2e3209'
  - url: 'https://git.kernel.org/stable/c/16ef02bad239f11f322df8425d302be62f0443ce'
tags:
  - cve.org
epss: 0.00163
epssPercentile: 0.05553
ingestedAt: '2026-11-05T22:38:31.722Z'
---

## Overview

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

wifi: ath9k: verify the expected usb_endpoints are present

The bug arises when a USB device claims to be an ATH9K but doesn't
have the expected endpoints. (In this case there was an interrupt
endpoint where the driver expected a bulk endpoint.) The kernel
needs to be able to handle such devices without getting an internal error.

usb 1-1: BOGUS urb xfer, pipe 3 != type 1
WARNING: CPU: 3 PID: 500 at drivers/usb/core/urb.c:493 usb_submit_urb+0xce2/0x1430 drivers/usb/core/urb.c:493
Modules linked in:
CPU: 3 PID: 500 Comm: kworker/3:2 Not tainted 5.10.135-syzkaller #0
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: events request_firmware_work_func
RIP: 0010:usb_submit_urb+0xce2/0x1430 drivers/usb/core/urb.c:493
Call Trace:
 ath9k_hif_usb_alloc_rx_urbs drivers/net/wireless/ath/ath9k/hif_usb.c:908 [inline]
 ath9k_hif_usb_alloc_urbs+0x75e/0x1010 drivers/net/wireless/ath/ath9k/hif_usb.c:1019
 ath9k_hif_usb_dev_init drivers/net/wireless/ath/ath9k/hif_usb.c:1109 [inline]
 ath9k_hif_usb_firmware_cb+0x142/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1242
 request_firmware_work_func+0x12e/0x240 drivers/base/firmware_loader/main.c:1097
 process_one_work+0x9af/0x1600 kernel/workqueue.c:2279
 worker_thread+0x61d/0x12f0 kernel/workqueue.c:2425
 kthread+0x3b4/0x4a0 kernel/kthread.c:313
 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:299

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

## Affected

- `Linux >= fb9987d0f748c983bb795a86f47522313f701a08 < 932f0a5e829fb0b823f96d7fa9a0f4fc96660b77`
- `Linux >= fb9987d0f748c983bb795a86f47522313f701a08 < d008a202a0528a058bac658e657c010ce8534f4a`
- `Linux >= fb9987d0f748c983bb795a86f47522313f701a08 < d64436af0bc3c9e579be761d7684f228fb95f3bb`
- `Linux >= fb9987d0f748c983bb795a86f47522313f701a08 < ca57748593ddd8e46d033fbaeb9d01ec533a6bfe`
- `Linux >= fb9987d0f748c983bb795a86f47522313f701a08 < 1824ccabee5445347b83642e4087cc2eca070343`
- `Linux >= fb9987d0f748c983bb795a86f47522313f701a08 < c319196a0e34ed2e66d6f876f58d8d446335c2a7`
- `Linux >= fb9987d0f748c983bb795a86f47522313f701a08 < 2d2eccf52ea0215c8d386b62af0b5fd4fc122bd5`
- `Linux >= fb9987d0f748c983bb795a86f47522313f701a08 < 0b7e6d681e00a96cde2b32a15ffa70e1be2e3209`
- `Linux >= fb9987d0f748c983bb795a86f47522313f701a08 < 16ef02bad239f11f322df8425d302be62f0443ce`
- `Linux 2.6.35`

## Remediation

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