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().
Affected versions
Linux kernel versions
2.6.29
and later are affected. Fixed in
4.9.337,
4.14.303,
4.19.270,
5.4.229,
5.10.163,
5.15.86,
6.0.16,
6.1.2,
6.2
and their respective stable series.
References
The following references provide additional information about CVE-2022-50769 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/1cf0c1e58738b97e2de207846105b6a5d46622ee
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PatchKernel patch commithttps://git.kernel.org/stable/c/2d496050ded83b13b16f05e1fc0329b0210d2493
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PatchKernel patch commithttps://git.kernel.org/stable/c/32eb502c972dfc34413c9147418b3d94d870c2b8
Frequently asked questions
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What is CVE-2022-50769?
CVE-2022-50769 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 2.6.29 onward and has been patched in 4.9.337, 4.14.303, 4.19.270 and others. CVE-2022-50769 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2022-50769?
Yes — CVE-2022-50769 has been patched. Fixed versions include 4.9.337, 4.14.303, 4.19.270 and others. If you are running Linux kernel 2.6.29 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2022-50769 actively exploited?
No — CVE-2022-50769 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.