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NVD / CVE Program· CNA Linux

CVE-2025-68238: mtd: rawnand: cadence: fix DMA device NULL pointer dereference

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: 0.19% (FIRST EPSS).
  • Fixed version: Linux Linux 0c2a43cb43786011b48eeab6093db14888258c6b, 0c635241a62f2f5da1b48bfffae226d1f86a76ef, 2178b0255eae108bb10e5e99658b28641bc06f43.

Low priority for now. Upgrade to Linux Linux 0c2a43cb43786011b48eeab6093db14888258c6b, 0c635241a62f2f5da1b48bfffae226d1f86a76ef, 2178b0255eae108bb10e5e99658b28641bc06f43 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: mtd: rawnand: cadence: fix DMA device NULL pointer dereference The DMA device pointer `dma_dev` was being dereferenced before ensuring that `cdns_ctrl->dmac` is properly initialized. Move the assignment of `dma_dev` after successfully acquiring the DMA channel to ensure the pointer is valid before use.

—No exploit Fix available
Published
Dec 16, 2025
Updated
Oct 14, 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%

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

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Follow CVE-2025-68238

When you'll hear from us

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

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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

    • a33c7492dcdf804b705b6c21018a481414d48038, 6.14affected
    • 0cae7c285f4771a9927ef592899234d307aea5d4 and later · before 2178b0255eae108bb10e5e99658b28641bc06f43affected · git
    • 099a316518508be7c57de4134ef919b2dea948ce and later · before 9c58c64ec41290c12490ca7e1df45013fbbb41fdaffected · git
    • e630d32162a8aab92d4aaebae0a8d93039257593 and later · before e282a4fdf3c6ee842a720010a8b5f7d77bedd126affected · git
    • ad9393467fbd788ac2b8a01e492e45ab1b68a1b1 and later · before b146e0b085d9d6bfe838e0a15481cba7d093c67faffected · git
    • 0ce5416863965ddd86e066484a306867cf1e01a8 and later · before 0c635241a62f2f5da1b48bfffae226d1f86a76efaffected · git
    • d76d22b5096c5b05208fd982b153b3f182350b19 and later · before 0c2a43cb43786011b48eeab6093db14888258c6baffected · git
    • d76d22b5096c5b05208fd982b153b3f182350b19 and later · before 5c56bf214af85ca042bf97f8584aab2151035840affected · git
    • 5.10.235 and later · before 5.10.247affected · semver
    • 5.15.179 and later · before 5.15.197affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.159-16.1.159-1
Debian:13linuxbefore 6.12.63-16.12.63-1
Debian:14linuxbefore 6.17.10-16.17.10-1

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-2025-68236Dec 16, 2025 · scsi: ufs: ufs-qcom: Fix UFS OCP issue during UFS power down (PC=3)
    0Monitor
  • ← EarlierCVE-2025-68237Dec 16, 2025 · mtdchar: fix integer overflow in read/write ioctls
    0Monitor
  • Later →CVE-2025-68239Dec 16, 2025 · binfmt_misc: restore write access before closing files opened by open_exec()
    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 Linux0c2a43cb43786011b48eeab6093db14888258c6bVendor (CNA)
Linux Linux0c635241a62f2f5da1b48bfffae226d1f86a76efVendor (CNA)
Linux Linux2178b0255eae108bb10e5e99658b28641bc06f43Vendor (CNA)
Linux Linux5.10.247Vendor (CNA)
Linux Linux5.15.197Vendor (CNA)
Linux Linux5c56bf214af85ca042bf97f8584aab2151035840Vendor (CNA)
Linux Linux6.1.159Vendor (CNA)
Linux Linux6.12.60Vendor (CNA)
Linux Linux6.14Vendor (CNA)
Linux Linux6.6.118Vendor (CNA)
Linux Linux9c58c64ec41290c12490ca7e1df45013fbbb41fdVendor (CNA)
Linux Linuxb146e0b085d9d6bfe838e0a15481cba7d093c67fVendor (CNA)
Linux Linuxe282a4fdf3c6ee842a720010a8b5f7d77bedd126Vendor (CNA)
debian:linux6.1.159-1 · 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 (6 more)

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

All records