CVE-2022-50769
Published Dec 24, 2025
Modified Apr 15, 2026
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().
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References
Other References
https://git.kernel.org/stable/c/1cf0c1e58738b97e2de207846105b6a5d46622ee
https://git.kernel.org/stable/c/2d496050ded83b13b16f05e1fc0329b0210d2493
https://git.kernel.org/stable/c/32eb502c972dfc34413c9147418b3d94d870c2b8
https://git.kernel.org/stable/c/3904eb97bb78fdca3e16d30a38ce5697b9686110
https://git.kernel.org/stable/c/5f35c038c9f4d258b3cf77885a2730f1417d63e7
https://git.kernel.org/stable/c/b8bdb3fd13d5cd1e86d22fd3f803a742fd88af89
https://git.kernel.org/stable/c/cde600af7b413c9fe03e85c58c4279df90e91d13
https://git.kernel.org/stable/c/d2ead18bc7cc166220cab5a744a05c5b69431a12
https://git.kernel.org/stable/c/d37474ab9a79149075f0823315c6d45dd983a78c
Frequently Asked Questions
What is CVE-2022-50769? +
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().
How do I check if I'm vulnerable to CVE-2022-50769? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.