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NVD / CVE Program· CNA Linux

CVE-2022-50769: mmc: mxcmmc: fix return value check of mmc_add_host()

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.27% (FIRST EPSS).
  • Fixed version: Linux Linux 1cf0c1e58738b97e2de207846105b6a5d46622ee, 2d496050ded83b13b16f05e1fc0329b0210d2493, 32eb502c972dfc34413c9147418b3d94d870c2b8.

Low priority for now. Upgrade to Linux Linux 1cf0c1e58738b97e2de207846105b6a5d46622ee, 2d496050ded83b13b16f05e1fc0329b0210d2493, 32eb502c972dfc34413c9147418b3d94d870c2b8 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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().

—No exploit Fix available
Published
Dec 24, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 20th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 2.6.29affected
    • d96be879ff469759af6d7fcebdb66237c18da6f8 and later · before 5f35c038c9f4d258b3cf77885a2730f1417d63e7affected · git
    • d96be879ff469759af6d7fcebdb66237c18da6f8 and later · before 1cf0c1e58738b97e2de207846105b6a5d46622eeaffected · git
    • d96be879ff469759af6d7fcebdb66237c18da6f8 and later · before b8bdb3fd13d5cd1e86d22fd3f803a742fd88af89affected · git
    • d96be879ff469759af6d7fcebdb66237c18da6f8 and later · before 32eb502c972dfc34413c9147418b3d94d870c2b8affected · git
    • d96be879ff469759af6d7fcebdb66237c18da6f8 and later · before 3904eb97bb78fdca3e16d30a38ce5697b9686110affected · git
    • d96be879ff469759af6d7fcebdb66237c18da6f8 and later · before 2d496050ded83b13b16f05e1fc0329b0210d2493affected · git
    • d96be879ff469759af6d7fcebdb66237c18da6f8 and later · before d37474ab9a79149075f0823315c6d45dd983a78caffected · git
    • d96be879ff469759af6d7fcebdb66237c18da6f8 and later · before d2ead18bc7cc166220cab5a744a05c5b69431a12affected · git
    • d96be879ff469759af6d7fcebdb66237c18da6f8 and later · before cde600af7b413c9fe03e85c58c4279df90e91d13affected · git

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.4-16.1.4-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2022-50767Dec 24, 2025 · fbdev: smscufx: Fix several use-after-free bugs
    0Monitor
  • ← EarlierCVE-2022-50768Dec 24, 2025 · scsi: smartpqi: Correct device removal for multi-actuator devices
    0Monitor
  • Later →CVE-2022-50770Dec 24, 2025 · ocfs2: fix memory leak in ocfs2_mount_volume()
    0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux1cf0c1e58738b97e2de207846105b6a5d46622eeVendor (CNA)
Linux Linux2d496050ded83b13b16f05e1fc0329b0210d2493Vendor (CNA)
Linux Linux32eb502c972dfc34413c9147418b3d94d870c2b8Vendor (CNA)
Linux Linux3904eb97bb78fdca3e16d30a38ce5697b9686110Vendor (CNA)
Linux Linux5f35c038c9f4d258b3cf77885a2730f1417d63e7Vendor (CNA)
Linux Linuxb8bdb3fd13d5cd1e86d22fd3f803a742fd88af89Vendor (CNA)
Linux Linuxcde600af7b413c9fe03e85c58c4279df90e91d13Vendor (CNA)
Linux Linuxd2ead18bc7cc166220cab5a744a05c5b69431a12Vendor (CNA)
Linux Linuxd37474ab9a79149075f0823315c6d45dd983a78cVendor (CNA)
debian:linux6.1.4-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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References

Show all references (8 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records