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CVE-2022-50846

UnknownEPSS 0.24%

Last modified

CVE-2022-50846 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: mmc: via-sdmmc: 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. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: mmc: via-sdmmc: 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().

Metrics

EPSS Probability
0.24%

14.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < 076bcd2c93e16b05c10564e299d6e5d26a766d00; >= f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < 12b8e81b77c05c658efd9cde3585bbd65ae39b59; >= f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < 95025a8dd0ec015872f6c16473fe04d6264e68ca; >= f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < f59ef2a47a228e51322ad76752a55a8917c56e38; >= f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < 63400da6cd37a9793c19bb6aed7131b58b975a04; >= f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < 0959cc1685eb19774300d43ef25e318b457b156b; >= f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < 0ec94795114edc7e24ec71849dce42bfa61dafa3; >= f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < ba91b413983a9235792523c6b9f7ba2586c4d75d; >= f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < e4e46fb61e3bb4628170810d3f2b996b709b90d9
LinuxLinux2.6.31

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2022-50846?
In the Linux kernel, the following vulnerability has been resolved: mmc: via-sdmmc: 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().
How severe is CVE-2022-50846?
Severity scoring for CVE-2022-50846 is pending analysis. The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.
How do I fix CVE-2022-50846?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST