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CVE-2026-72140· NVD / CVE Program· CNA Linux

i2c: mlxbf: Fix use-after-free in mlxbf_i2c_init_resource()

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: 0.22% (FIRST EPSS).
  • Fixed version: Linux Linux 5290a52533e09c38374963f4bb0b35121fe555c7, 6a108c9f5a81bb7b29dbb1398be0089655b6bfd2, 71356737a7a55c76fee847563e3d33f8e6dc6b6d.

Low priority for now. Upgrade to Linux Linux 5290a52533e09c38374963f4bb0b35121fe555c7, 6a108c9f5a81bb7b29dbb1398be0089655b6bfd2, 71356737a7a55c76fee847563e3d33f8e6dc6b6d 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: i2c: mlxbf: Fix use-after-free in mlxbf_i2c_init_resource() If devm_platform_get_and_ioremap_resource() returns an error, mlxbf_i2c_init_resource() frees tmp_res before reading tmp_res->io to get the error code. This results in a use-after-free. Save the error code before freeing tmp_res.

—No exploit Fix available
Published
Aug 15, 2026
Updated
Aug 17, 2026
EPSS
0.2% · 11th 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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  • 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

    • 5.10affected
    • b5b5b32081cd206baa6e58cca7f112d9723785d6 and later · before 6a108c9f5a81bb7b29dbb1398be0089655b6bfd2affected · git
    • b5b5b32081cd206baa6e58cca7f112d9723785d6 and later · before c4d9b6a0c9645366d9e4af8a6ac8347bd4c841aaaffected · git
    • b5b5b32081cd206baa6e58cca7f112d9723785d6 and later · before b398cbbbb9dd76210682a8c9aabd34c5168800b9affected · git
    • b5b5b32081cd206baa6e58cca7f112d9723785d6 and later · before 5290a52533e09c38374963f4bb0b35121fe555c7affected · git
    • b5b5b32081cd206baa6e58cca7f112d9723785d6 and later · before ce960a1b2caa4ad08291f28d8bcf17ad5a864e54affected · git
    • b5b5b32081cd206baa6e58cca7f112d9723785d6 and later · before e6a395a71f4652261d09b572a03c96052662a056affected · git
    • b5b5b32081cd206baa6e58cca7f112d9723785d6 and later · before fb267770bf822064f510c9b46743f533d8fa8a5faffected · git
    • b5b5b32081cd206baa6e58cca7f112d9723785d6 and later · before 71356737a7a55c76fee847563e3d33f8e6dc6b6daffected · git
    • before 5.10not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.180-16.1.180-1
Debian:13linuxbefore 6.12.100-16.12.100-1
Debian:14linuxbefore 7.1.5-17.1.5-1

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-2026-72138Aug 15, 2026 · xen/gntdev: fix error handling in ioctl
    0Monitor
  • ← EarlierCVE-2026-72139Aug 15, 2026 · tcp: defer md5sig_info kfree past RCU grace period in tcp_connect
    39Monitor
  • Later →CVE-2026-72141Aug 15, 2026 · i2c: imx: fix locked bus on SMBus block-read of 0 (IRQ)
    30Monitor

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 Linux5290a52533e09c38374963f4bb0b35121fe555c7Vendor (CNA)
Linux Linux6a108c9f5a81bb7b29dbb1398be0089655b6bfd2Vendor (CNA)
Linux Linux71356737a7a55c76fee847563e3d33f8e6dc6b6dVendor (CNA)
Linux Linuxb398cbbbb9dd76210682a8c9aabd34c5168800b9Vendor (CNA)
Linux Linuxc4d9b6a0c9645366d9e4af8a6ac8347bd4c841aaVendor (CNA)
Linux Linuxce960a1b2caa4ad08291f28d8bcf17ad5a864e54Vendor (CNA)
Linux Linuxe6a395a71f4652261d09b572a03c96052662a056Vendor (CNA)
Linux Linuxfb267770bf822064f510c9b46743f533d8fa8a5fVendor (CNA)
debian:linux6.1.180-1 · 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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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✗ → ✓

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

References

Show all references (7 more)

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

All records