CVE-2022-50468 (GCVE-0-2022-50468)

Vulnerability from cvelistv5 – Published: 2025-10-01 11:45 – Updated: 2025-10-01 11:45
VLAI?
Title
platform/chrome: cros_usbpd_notify: Fix error handling in cros_usbpd_notify_init()
Summary
In the Linux kernel, the following vulnerability has been resolved: platform/chrome: cros_usbpd_notify: Fix error handling in cros_usbpd_notify_init() The following WARNING message was given when rmmod cros_usbpd_notify: Unexpected driver unregister! WARNING: CPU: 0 PID: 253 at drivers/base/driver.c:270 driver_unregister+0x8a/0xb0 Modules linked in: cros_usbpd_notify(-) CPU: 0 PID: 253 Comm: rmmod Not tainted 6.1.0-rc3 #24 ... Call Trace: <TASK> cros_usbpd_notify_exit+0x11/0x1e [cros_usbpd_notify] __x64_sys_delete_module+0x3c7/0x570 ? __ia32_sys_delete_module+0x570/0x570 ? lock_is_held_type+0xe3/0x140 ? syscall_enter_from_user_mode+0x17/0x50 ? rcu_read_lock_sched_held+0xa0/0xd0 ? syscall_enter_from_user_mode+0x1c/0x50 do_syscall_64+0x37/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f333fe9b1b7 The reason is that the cros_usbpd_notify_init() does not check the return value of platform_driver_register(), and the cros_usbpd_notify can install successfully even if platform_driver_register() failed. Fix by checking the return value of platform_driver_register() and unregister cros_usbpd_notify_plat_driver when it failed.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ec2daf6e33f9f9113ba085b6ff88592907b6f1ce , < 5c0cacdd354987f8f5348d16908716f154047890 (git)
Affected: ec2daf6e33f9f9113ba085b6ff88592907b6f1ce , < cab345f9d51943898e406275f9607c145adb1877 (git)
Affected: ec2daf6e33f9f9113ba085b6ff88592907b6f1ce , < 7b6ee54995739202b4a0cc01b7e9269f761c573d (git)
Affected: ec2daf6e33f9f9113ba085b6ff88592907b6f1ce , < 751f12696d797e785d2611099fe9f0569d47556e (git)
Affected: ec2daf6e33f9f9113ba085b6ff88592907b6f1ce , < 5a2d96623670155d94aca72c320c0ac27bdc6bd2 (git)
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    Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.86 , ≤ 5.15.* (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "drivers/platform/chrome/cros_usbpd_notify.c"
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/chrome: cros_usbpd_notify: Fix error handling in cros_usbpd_notify_init()\n\nThe following WARNING message was given when rmmod cros_usbpd_notify:\n\n Unexpected driver unregister!\n WARNING: CPU: 0 PID: 253 at drivers/base/driver.c:270 driver_unregister+0x8a/0xb0\n Modules linked in: cros_usbpd_notify(-)\n CPU: 0 PID: 253 Comm: rmmod Not tainted 6.1.0-rc3 #24\n ...\n Call Trace:\n  \u003cTASK\u003e\n  cros_usbpd_notify_exit+0x11/0x1e [cros_usbpd_notify]\n  __x64_sys_delete_module+0x3c7/0x570\n  ? __ia32_sys_delete_module+0x570/0x570\n  ? lock_is_held_type+0xe3/0x140\n  ? syscall_enter_from_user_mode+0x17/0x50\n  ? rcu_read_lock_sched_held+0xa0/0xd0\n  ? syscall_enter_from_user_mode+0x1c/0x50\n  do_syscall_64+0x37/0x90\n  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n RIP: 0033:0x7f333fe9b1b7\n\nThe reason is that the cros_usbpd_notify_init() does not check the return\nvalue of platform_driver_register(), and the cros_usbpd_notify can\ninstall successfully even if platform_driver_register() failed.\n\nFix by checking the return value of platform_driver_register() and\nunregister cros_usbpd_notify_plat_driver when it failed."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-10-01T11:45:38.881Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/5c0cacdd354987f8f5348d16908716f154047890"
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          "url": "https://git.kernel.org/stable/c/cab345f9d51943898e406275f9607c145adb1877"
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        {
          "url": "https://git.kernel.org/stable/c/5a2d96623670155d94aca72c320c0ac27bdc6bd2"
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      "title": "platform/chrome: cros_usbpd_notify: Fix error handling in cros_usbpd_notify_init()",
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    "cveId": "CVE-2022-50468",
    "datePublished": "2025-10-01T11:45:38.881Z",
    "dateReserved": "2025-10-01T11:38:45.642Z",
    "dateUpdated": "2025-10-01T11:45:38.881Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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