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NVD / CVE Program· CNA Linux

CVE-2026-74519: pinctrl: devicetree: don't free uninitialized dev_name on error path

HighCVSS 7.8 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.14% (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 015b5bcbcb622b32317642be91a7f79aa5413649, 1586423da2739a80871ef6240016fcb9c7339bfb, 321fe3584a8298386938130d138191aa35040b75; azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 6.6.152.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 015b5bcbcb622b32317642be91a7f79aa5413649, 1586423da2739a80871ef6240016fcb9c7339bfb, 321fe3584a8298386938130d138191aa35040b75; azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 6.6.152.1-1 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: pinctrl: devicetree: don't free uninitialized dev_name on error path dt_remember_or_free_map() duplicates dev_name for each map entry. If kstrdup_const() fails, dt_free_map() frees dev_name in all num_maps entries, including entries that have not been initialized. Some pinctrl drivers, including pinctrl-imx, allocate the map with kmalloc() and leave dev_name for the core to initialize. The untouched entries therefore contain uninitialized data which is passed to kfree_const(). Reproduced on qemu's mcimx6ul-evk (pinctrl-imx) with failslab injection while binding the pinctrl-consuming device, under KASAN: BUG: KASAN: double-free in dt_free_map+0x34/0xa4 Free of addr c425a900 by task init/1 kfree from dt_free_map+0x34/0xa4 dt_free_map from dt_remember_or_free_map+0x184/0x198 dt_remember_or_free_map from pinctrl_dt_to_map+0x33c/0x4c8 pinctrl_dt_to_map from create_pinctrl+0x9c/0x5c0 Initialize all dev_name fields to NULL before duplicating the device name, making the full-map cleanup safe after a partial failure.

Published
Aug 15, 2026
Updated
Oct 16, 2026
EPSS
0.1% · 3th percentile
CWE
—

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Linux
7.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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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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Follow CVE-2026-74519

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  • when exploit code appears or is weaponized
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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

    • 03f69244302d7954f42f528ea2d45903ebbf59f3, 77440c3a37203e3f4667d06e37f76ef3968d2d8c, 679c4f27b8958b65bb51d1c3dfdbf3befe4a33a3, f88ac1330779c5bfdd79f7d7f7d4d3343c782f92, f739a699db7d5a5cf39ca3ce2c84e4fe4a8f4c5d, 5.5affected
    • be4c60b563edee3712d392aaeb0943a768df7023 and later · before e3cfb22bad363bebcfd55d909e12d499cb8c5490affected · git
    • be4c60b563edee3712d392aaeb0943a768df7023 and later · before 1586423da2739a80871ef6240016fcb9c7339bfbaffected · git
    • be4c60b563edee3712d392aaeb0943a768df7023 and later · before dec5f0a8080502908dec5e35597c7ae07d533a3baffected · git
    • be4c60b563edee3712d392aaeb0943a768df7023 and later · before 929f6396baade89999ec8a1281232c101cbc727daffected · git
    • be4c60b563edee3712d392aaeb0943a768df7023 and later · before 321fe3584a8298386938130d138191aa35040b75affected · git
    • be4c60b563edee3712d392aaeb0943a768df7023 and later · before ad0ad3c228b6f76fde10f32047e0ec5fbc109dc8affected · git
    • be4c60b563edee3712d392aaeb0943a768df7023 and later · before 9d00a5ac7cd3d32ae61140f4b8a62f136de84e7daffected · git
    • be4c60b563edee3712d392aaeb0943a768df7023 and later · before 015b5bcbcb622b32317642be91a7f79aa5413649affected · git
    • 4.4.244 and later · before 4.5affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.187-16.1.187-1
Debian:12linux-6.12before 6.12.107-1~deb12u16.12.107-1~deb12u1
Debian:13linuxbefore 6.12.105-16.12.105-1
Debian:14linuxbefore 7.1.8-17.1.8-1

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-2026-74517Aug 15, 2026 · KVM: x86: Cancel delayed I/O APIC EOI handling before destroying vCPUs
    37Monitor
  • ← EarlierCVE-2026-74518Aug 15, 2026 · mm/hugetlb: fix list corruption in allocate_file_region_entries()
    31Monitor
  • Later →CVE-2026-74520Aug 15, 2026 · iommu/iommufd: Fix IOPF group ownership UAF
    35Monitor

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 Linux015b5bcbcb622b32317642be91a7f79aa5413649Vendor (CNA)
Linux Linux1586423da2739a80871ef6240016fcb9c7339bfbVendor (CNA)
Linux Linux321fe3584a8298386938130d138191aa35040b75Vendor (CNA)
Linux Linux4.10Vendor (CNA)
Linux Linux4.15Vendor (CNA)
Linux Linux4.20Vendor (CNA)
Linux Linux4.5Vendor (CNA)
Linux Linux5.5Vendor (CNA)
Linux Linux929f6396baade89999ec8a1281232c101cbc727dVendor (CNA)
Linux Linux9d00a5ac7cd3d32ae61140f4b8a62f136de84e7dVendor (CNA)
Linux Linuxad0ad3c228b6f76fde10f32047e0ec5fbc109dc8Vendor (CNA)
Linux Linuxdec5f0a8080502908dec5e35597c7ae07d533a3bVendor (CNA)
Linux Linuxe3cfb22bad363bebcfd55d909e12d499cb8c5490Vendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.06.6.152.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.187-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.107-1~deb12u1 · 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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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

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

Weakness class (CWE)

—

CVSS vector

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

nvd-secondary

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

Show all references (7 more)

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

All records