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NVD / CVE Program· CNA Linux

CVE-2023-54204: mmc: sunplus: fix return value check of mmc_add_host()

—No exploit Fix available

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: 0.18% (FIRST EPSS).
  • Fixed version: Linux Linux 741a951f41929f39cae70c66d86d0754d3129d0a, dce6d8f985fa1ef5c2af47f4f86ea65511b78656.

Low priority for now. Upgrade to Linux Linux 741a951f41929f39cae70c66d86d0754d3129d0a, dce6d8f985fa1ef5c2af47f4f86ea65511b78656 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: sunplus: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, 1. the memory allocated in mmc_alloc_host() will be leaked 2. null-ptr-deref will happen when calling mmc_remove_host() in remove function spmmc_drv_remove() because deleting not added device. Fix this by checking the return value of mmc_add_host(). Moreover, I fixed the error handling path of spmmc_drv_probe() to clean up.

Published
Dec 30, 2025
Updated
Oct 28, 2026
EPSS
0.1% · 8th 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 · 0.1%

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Noroxi analysis

What does it mean in your environment?

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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

    • 6.2affected
    • 4e268fed8b1861616af28f9cfb4eed8ca5d7af6c and later · before 741a951f41929f39cae70c66d86d0754d3129d0aaffected · git
    • 4e268fed8b1861616af28f9cfb4eed8ca5d7af6c and later · before dce6d8f985fa1ef5c2af47f4f86ea65511b78656affected · git
    • before 6.2not affected · semver
    • 6.4.12 and later · up to and including 6.4.*not affected · semver
    • 6.5 and laternot affected · original_commit_for_fix

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:13linuxbefore 6.4.13-16.4.13-1

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-2023-54202Dec 30, 2025 · drm/i915: fix race condition UAF in i915_perf_add_config_ioctl
    31Monitor
  • ← EarlierCVE-2023-54203Dec 30, 2025 · ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr
    36Monitor
  • Later →CVE-2023-54205Dec 30, 2025 · pinctrl: stm32: Fix refcount leak in stm32_pctrl_get_irq_domain
    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 Linux741a951f41929f39cae70c66d86d0754d3129d0aVendor (CNA)
Linux Linuxdce6d8f985fa1ef5c2af47f4f86ea65511b78656Vendor (CNA)
debian:linux6.4.13-1 · Debian:13Package 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.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

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.

References

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

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