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CVE-2022-50858

11
FAUCET Score

CVE-2022-50858 addresses a memory leak vulnerability in the Linux kernel's Alcor Micro SD/MMC host controller driver (mmc: alcor). Specifically, it corrects an oversight where the return value of mmc_add_host() was not properly checked, leading to unreleased memory and potential kernel crashes if device addition failed. This vulnerability has no assigned CVSS score, but its FAUCET Risk Score is 7/100, indicating a low-level risk. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
LinuxLinux
5.0CNA affecteddefault affected
LinuxLinux
>= c5413ad815a675b5c98a002353d8e96b44b164e9, < 289c964fe182ce755044a6cd57698072e12ffa6f, >= c5413ad815a675b5c98a002353d8e96b44b164e9, < 29c5b4da41f35108136d843c7432885c78cf8272, >= c5413ad815a675b5c98a002353d8e96b44b164e9, < 48dc06333d75f41c2ce9ba954bc3231324b45914, >= c5413ad815a675b5c98a002353d8e96b44b164e9, < 4a6e5d0222804a3eaf2ea4cf893f412e7cf98cb2, >= c5413ad815a675b5c98a002353d8e96b44b164e9, < 60fafcf2fb7ee9a4125dc9a86eeb9d490acf23e2, >= c5413ad815a675b5c98a002353d8e96b44b164e9, < e93d1468f429475a753d6baa79b853b7ee5ef8c0CNA affecteddefault unaffected

CVSS Data

CVSS data has not been published for this CVE.

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
10.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15

Social Chatter

Media Mentions

No media coverage found for this CVE.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-503.11.1.el9_5
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-50858Low

kernel: mmc: alcor: fix return value check of mmc_add_host()

Dec 30, 2025

References

git.kernel.org / stable/c/289c964fe182ce755044a6cd57698072e12ffa6f
git.kernel.org / stable/c/29c5b4da41f35108136d843c7432885c78cf8272
git.kernel.org / stable/c/48dc06333d75f41c2ce9ba954bc3231324b45914
git.kernel.org / stable/c/4a6e5d0222804a3eaf2ea4cf893f412e7cf98cb2
git.kernel.org / stable/c/60fafcf2fb7ee9a4125dc9a86eeb9d490acf23e2
git.kernel.org / stable/c/e93d1468f429475a753d6baa79b853b7ee5ef8c0