CVE-2022-48836 Input: aiptek - properly check endpoint type

2024-07-1612:25:08

Linux

www.cve.org

linux kernel

vulnerability

endpoint type

aiptek

input driver

EPSS

Percentile

5.1%

JSON

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

Input: aiptek - properly check endpoint type

Syzbot reported warning in usb_submit_urb() which is caused by wrong
endpoint type. There was a check for the number of endpoints, but not
for the type of endpoint.

Fix it by replacing old desc.bNumEndpoints check with
usb_find_common_endpoints() helper for finding endpoints

Fail log:

usb 5-1: BOGUS urb xfer, pipe 1 != type 3
WARNING: CPU: 2 PID: 48 at drivers/usb/core/urb.c:502 usb_submit_urb+0xed2/0x18a0 drivers/usb/core/urb.c:502
Modules linked in:
CPU: 2 PID: 48 Comm: kworker/2:2 Not tainted 5.17.0-rc6-syzkaller-00226-g07ebd38a0da2 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Workqueue: usb_hub_wq hub_event
…
Call Trace:
<TASK>
aiptek_open+0xd5/0x130 drivers/input/tablet/aiptek.c:830
input_open_device+0x1bb/0x320 drivers/input/input.c:629
kbd_connect+0xfe/0x160 drivers/tty/vt/keyboard.c:1593

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/input/tablet/aiptek.c"
    ],
    "versions": [
      {
        "version": "8e20cf2bce12",
        "lessThan": "57277a8b5d88",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8e20cf2bce12",
        "lessThan": "fc8033a55e27",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8e20cf2bce12",
        "lessThan": "6de20111cd0b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8e20cf2bce12",
        "lessThan": "e732b0412f8c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8e20cf2bce12",
        "lessThan": "f0d43d22d241",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8e20cf2bce12",
        "lessThan": "e762f57ff255",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8e20cf2bce12",
        "lessThan": "35069e654bca",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8e20cf2bce12",
        "lessThan": "5600f6986628",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/input/tablet/aiptek.c"
    ],
    "versions": [
      {
        "version": "4.4",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.4",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.9.308",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.273",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.236",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.187",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.108",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.31",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.16.17",
        "lessThanOrEqual": "5.16.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]