CVE-2022-50353
mmc: wmt-sdmmc: fix return value check of mmc_add_host()
Description
In the Linux kernel, the following vulnerability has been resolved: mmc: wmt-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 goto error path which will call mmc_free_host(), besides, clk_disable_unprepare() also needs be called.
INFO
Published Date :
Sept. 17, 2025, 3:15 p.m.
Last Modified :
Sept. 17, 2025, 3:15 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2022-50353
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.
- Ensure proper error handling for mmc_add_host().
- Check return values of mmc_add_host().
- Call clk_disable_unprepare() in error paths.
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-2022-50353.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-50353 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-2022-50353
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-2022-50353 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-50353 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.
-
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 17, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: mmc: wmt-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 goto error path which will call mmc_free_host(), besides, clk_disable_unprepare() also needs be called. Added Reference https://git.kernel.org/stable/c/29276d56f6ed138db0f38cd31aedc0b725c8c76c Added Reference https://git.kernel.org/stable/c/58c3a8d0f1abeb1ca5c2df948be58ad4f7bb6f67 Added Reference https://git.kernel.org/stable/c/70b0620afab3c69d95a7e2dd7ceff162a21c4009 Added Reference https://git.kernel.org/stable/c/9bedf64dda84b29151e41591d8ded9ff0e6d336a Added Reference https://git.kernel.org/stable/c/b40ac3b696a9c84b36211ef0c3f5a422650c101b Added Reference https://git.kernel.org/stable/c/c7a328cea791cc2769b6417943939420913b4a46 Added Reference https://git.kernel.org/stable/c/eb7a2d516d4fbd165c07877a20feccb047342b1f Added Reference https://git.kernel.org/stable/c/ecd6f77af3478f5223aa4011642a891b7dc91228