CVE-2022-50769
mmc: mxcmmc: fix return value check of mmc_add_host()
Description
In the Linux kernel, the following vulnerability has been resolved: mmc: mxcmmc: 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().
INFO
Published Date :
Dec. 24, 2025, 1:16 p.m.
Last Modified :
Dec. 24, 2025, 1:16 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2022-50769
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
- Apply the provided patch to the Linux kernel.
- Ensure mmc_add_host() return values are checked.
- Call mmc_free_host() in the error path.
- Verify memory management in the mmc subsystem.
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-2022-50769.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-50769 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-2022-50769
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-2022-50769 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-50769 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
Dec. 24, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: mmc: mxcmmc: 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(). Added Reference https://git.kernel.org/stable/c/1cf0c1e58738b97e2de207846105b6a5d46622ee Added Reference https://git.kernel.org/stable/c/2d496050ded83b13b16f05e1fc0329b0210d2493 Added Reference https://git.kernel.org/stable/c/32eb502c972dfc34413c9147418b3d94d870c2b8 Added Reference https://git.kernel.org/stable/c/3904eb97bb78fdca3e16d30a38ce5697b9686110 Added Reference https://git.kernel.org/stable/c/5f35c038c9f4d258b3cf77885a2730f1417d63e7 Added Reference https://git.kernel.org/stable/c/b8bdb3fd13d5cd1e86d22fd3f803a742fd88af89 Added Reference https://git.kernel.org/stable/c/cde600af7b413c9fe03e85c58c4279df90e91d13 Added Reference https://git.kernel.org/stable/c/d2ead18bc7cc166220cab5a744a05c5b69431a12 Added Reference https://git.kernel.org/stable/c/d37474ab9a79149075f0823315c6d45dd983a78c