CVE-2022-50347
mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host()
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.
INFO
Published Date :
Sept. 16, 2025, 5:15 p.m.
Last Modified :
Sept. 16, 2025, 5:15 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2022-50347
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Linux kernel to the latest version.
- Verify the fix by testing the mmc subsystem.
- Reboot the system after applying the update.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-50347.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-50347 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-50347
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-50347 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-50347 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 16, 2025
Action Type Old Value New Value 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. Added Reference https://git.kernel.org/stable/c/1491667d5450778a265eddddd294219acfd648cb Added Reference https://git.kernel.org/stable/c/7fa922c7a3dd623fd59f1af50e8896fd9ca7f654 Added Reference https://git.kernel.org/stable/c/89303ddbb502c3bc8edbf864f9f85500c8fe07e9 Added Reference https://git.kernel.org/stable/c/937112e991ed25d1727d878734adcbef3b900274 Added Reference https://git.kernel.org/stable/c/a522e26a20a43dcfbef9ee9f71ed803290e852b0 Added Reference https://git.kernel.org/stable/c/d7ad7278be401b09c9f9a9f522cf4c449c7fd489 Added Reference https://git.kernel.org/stable/c/df683201c7ffbd21a806a7cad657b661c5ebfb6f Added Reference https://git.kernel.org/stable/c/e598c9683fe1cf97c2b11b800cc3cee072108220 Added Reference https://git.kernel.org/stable/c/fc38a5a10e9e5a75eb9189854abeb8405b214cc9