In the Linux kernel, the following vulnerability has been resolved: mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path. So fix this by checking the return value and calling mmc_free_host() in the error path, besides, led_classdev_unregister() and pm_runtime_disable() also need be called.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/1491667d5450778a265eddddd294219acfd648cb cve-icon cve-icon
https://git.kernel.org/stable/c/7fa922c7a3dd623fd59f1af50e8896fd9ca7f654 cve-icon cve-icon
https://git.kernel.org/stable/c/89303ddbb502c3bc8edbf864f9f85500c8fe07e9 cve-icon cve-icon
https://git.kernel.org/stable/c/937112e991ed25d1727d878734adcbef3b900274 cve-icon cve-icon
https://git.kernel.org/stable/c/a522e26a20a43dcfbef9ee9f71ed803290e852b0 cve-icon cve-icon
https://git.kernel.org/stable/c/d7ad7278be401b09c9f9a9f522cf4c449c7fd489 cve-icon cve-icon
https://git.kernel.org/stable/c/df683201c7ffbd21a806a7cad657b661c5ebfb6f cve-icon cve-icon
https://git.kernel.org/stable/c/e598c9683fe1cf97c2b11b800cc3cee072108220 cve-icon cve-icon
https://git.kernel.org/stable/c/fc38a5a10e9e5a75eb9189854abeb8405b214cc9 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025091640-CVE-2022-50347-33c3@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-50347 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-50347 cve-icon
History

Wed, 17 Sep 2025 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Wed, 17 Sep 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

Tue, 16 Sep 2025 16:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path. So fix this by checking the return value and calling mmc_free_host() in the error path, besides, led_classdev_unregister() and pm_runtime_disable() also need be called.
Title mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-09-16T16:11:39.891Z

Updated: 2025-09-16T16:11:39.891Z

Reserved: 2025-09-16T16:03:27.882Z

Link: CVE-2022-50347

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-09-16T17:15:34.470

Modified: 2025-09-17T14:18:55.093

Link: CVE-2022-50347

cve-icon Redhat

Severity : Low

Publid Date: 2025-09-16T00:00:00Z

Links: CVE-2022-50347 - Bugzilla