Skip to content
Noroxi
NVD / CVE Program· CNA Linux

CVE-2022-50268: mmc: moxart: fix return value check of mmc_add_host()

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.16% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 0ca18d09c744fb030ae9bc5836c3e357e0237dea, 40aa73c70e8a5706f9cbe01409a5e51cc0f1750e, 7c3b301ca8b0cab392c71da8fcdfa499074f8e97.

Low priority for now. Upgrade to Linux Linux 0ca18d09c744fb030ae9bc5836c3e357e0237dea, 40aa73c70e8a5706f9cbe01409a5e51cc0f1750e, 7c3b301ca8b0cab392c71da8fcdfa499074f8e97 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: moxart: 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().

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Sep 15, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 5th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

Get told when this record changes

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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2022-50268

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for linux records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

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.

We use this product, ask for help

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.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel3.16 and later · before 4.9.337
  • linux linux kernel4.10 and later · before 4.14.303
  • linux linux kernel4.15 and later · before 4.19.270
  • linux linux kernel4.20 and later · before 5.4.229
  • linux linux kernel5.5 and later · before 5.10.163
  • linux linux kernel5.11 and later · before 5.15.86
  • linux linux kernel5.16 and later · before 6.0.16
  • linux linux kernel6.1 and later · before 6.1.2

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

    • 3.16affected
    • 1b66e94e6b9995323190f31c51d8e1a6f516627e and later · before a4c765f5d8e58138cff69f1510b2e8942ec37022affected · git
    • 1b66e94e6b9995323190f31c51d8e1a6f516627e and later · before a94d466f31a5201995d39bc1208e2c09ab04f0bfaffected · git
    • 1b66e94e6b9995323190f31c51d8e1a6f516627e and later · before c7e9a2059fb943fc3c3fa12261518fd72a0fc136affected · git
    • 1b66e94e6b9995323190f31c51d8e1a6f516627e and later · before b174f2b36c638fc7737df6c8aac1889a646be98faffected · git
    • 1b66e94e6b9995323190f31c51d8e1a6f516627e and later · before 7c3b301ca8b0cab392c71da8fcdfa499074f8e97affected · git
    • 1b66e94e6b9995323190f31c51d8e1a6f516627e and later · before f0502fe86a2db2336c9498d2de3e97f22dcf85aeaffected · git
    • 1b66e94e6b9995323190f31c51d8e1a6f516627e and later · before 8f8bb62c7c5c833758ef1563fe738afd579c3efeaffected · git
    • 1b66e94e6b9995323190f31c51d8e1a6f516627e and later · before 40aa73c70e8a5706f9cbe01409a5e51cc0f1750eaffected · git
    • 1b66e94e6b9995323190f31c51d8e1a6f516627e and later · before 0ca18d09c744fb030ae9bc5836c3e357e0237deaaffected · 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-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2022-50264Sep 15, 2025 · clk: socfpga: Fix memory leak in socfpga_gate_init()
    22Monitor
  • ← EarlierCVE-2022-50265Sep 15, 2025 · kcm: annotate data-races around kcm->rx_wait
    22Monitor
  • Later →CVE-2022-50270Sep 15, 2025 · f2fs: fix the assign logic of iocb
    28Monitor

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 Linux0ca18d09c744fb030ae9bc5836c3e357e0237deaVendor (CNA)
Linux Linux40aa73c70e8a5706f9cbe01409a5e51cc0f1750eVendor (CNA)
Linux Linux7c3b301ca8b0cab392c71da8fcdfa499074f8e97Vendor (CNA)
Linux Linux8f8bb62c7c5c833758ef1563fe738afd579c3efeVendor (CNA)
Linux Linuxa4c765f5d8e58138cff69f1510b2e8942ec37022Vendor (CNA)
Linux Linuxa94d466f31a5201995d39bc1208e2c09ab04f0bfVendor (CNA)
Linux Linuxb174f2b36c638fc7737df6c8aac1889a646be98fVendor (CNA)
Linux Linuxc7e9a2059fb943fc3c3fa12261518fd72a0fc136Vendor (CNA)
Linux Linuxf0502fe86a2db2336c9498d2de3e97f22dcf85aeVendor (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

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-476 · NULL Pointer Dereference

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

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✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (8 more)

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

All records