CVE-2022-50618
In the Linux kernel, the following vulnerability has been resolved: mmc: meson-gx: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, it will lead two issues: 1. The memory that allocated in mmc_alloc_host() is leaked. 2. In the remove() path, mmc_remove_host() will be called to delete device, but it's not added yet, it will lead a kernel crash because of null-ptr-deref in device_del(). Fix this by checking the return value and goto error path which will call mmc_free_host().
Affected versions
Linux kernel versions
4.10
and later are affected. Fixed in
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-2022-50618 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/42343e3c6195e934b9cb4c08b7ff84a3778d77f9
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PatchKernel patch commithttps://git.kernel.org/stable/c/64b2c441171febf075bd9632aca579afda8ab9fb
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PatchKernel patch commithttps://git.kernel.org/stable/c/90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e
Frequently asked questions
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What is CVE-2022-50618?
CVE-2022-50618 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.10 onward and has been patched in 4.19.270, 5.4.229, 5.10.163 and others. CVE-2022-50618 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-2022-50618?
Yes — CVE-2022-50618 has been patched. Fixed versions include 4.19.270, 5.4.229, 5.10.163 and others. If you are running Linux kernel 4.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2022-50618 actively exploited?
No — CVE-2022-50618 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.