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NVD / CVE Program· CNA Linux

CVE-2023-54319: pinctrl: at91-pio4: check return value of devm_kasprintf()

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: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 0a95dd17a73b7603818ad7c46c99d757232be331, 0af388fce352ed2ab383fd5d1a08db551ca15c38, 3e8ce1d5a1a9d758b359e5c426543957f35991f8.

Low priority for now. Upgrade to Linux Linux 0a95dd17a73b7603818ad7c46c99d757232be331, 0af388fce352ed2ab383fd5d1a08db551ca15c38, 3e8ce1d5a1a9d758b359e5c426543957f35991f8 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: at91-pio4: check return value of devm_kasprintf() devm_kasprintf() returns a pointer to dynamically allocated memory. Pointer could be NULL in case allocation fails. Check pointer validity. Identified with coccinelle (kmerr.cocci script). Depends-on: 1c4e5c470a56 ("pinctrl: at91: use devm_kasprintf() to avoid potential leaks") Depends-on: 5a8f9cf269e8 ("pinctrl: at91-pio4: use proper format specifier for unsigned int")

—No exploit Fix available
Published
Dec 30, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 12th 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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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

    • 4.4affected
    • 776180848b574c9c01217fa958f10843ffce584f and later · before 8d788f2ba830d6d32499b198c526d577c590eedfaffected · git
    • 776180848b574c9c01217fa958f10843ffce584f and later · before 3e8ce1d5a1a9d758b359e5c426543957f35991f8affected · git
    • 776180848b574c9c01217fa958f10843ffce584f and later · before aa3932eb07392d626486428e2ffddc660658e22aaffected · git
    • 776180848b574c9c01217fa958f10843ffce584f and later · before f3c7b95c9991dab02e616fc251b6c3516e0bd0acaffected · git
    • 776180848b574c9c01217fa958f10843ffce584f and later · before 0a95dd17a73b7603818ad7c46c99d757232be331affected · git
    • 776180848b574c9c01217fa958f10843ffce584f and later · before 0af388fce352ed2ab383fd5d1a08db551ca15c38affected · git
    • 776180848b574c9c01217fa958f10843ffce584f and later · before 5bfd577cc728270d6cd7af6c652a1e7661f25487affected · git
    • 776180848b574c9c01217fa958f10843ffce584f and later · before 8a1fa202f47f39680a4305af744f499a324f8a03affected · git
    • 776180848b574c9c01217fa958f10843ffce584f and later · before f6fd5d4ff8ca0b24cee1af4130bcb1fa96b61aa0affected · git

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.52-16.1.52-1
Debian:13linuxbefore 6.4.4-16.4.4-1

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-2023-54315Dec 30, 2025 · powerpc/powernv/sriov: perform null check on iov before dereferencing iov
    0Monitor
  • ← EarlierCVE-2023-54316Dec 30, 2025 · refscale: Fix uninitalized use of wait_queue_head_t
    0Monitor
  • Later →CVE-2023-54320Dec 30, 2025 · platform/x86/amd: pmc: Fix memory leak in amd_pmc_stb_debugfs_open_v2()
    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 Linux0a95dd17a73b7603818ad7c46c99d757232be331Vendor (CNA)
Linux Linux0af388fce352ed2ab383fd5d1a08db551ca15c38Vendor (CNA)
Linux Linux3e8ce1d5a1a9d758b359e5c426543957f35991f8Vendor (CNA)
Linux Linux5bfd577cc728270d6cd7af6c652a1e7661f25487Vendor (CNA)
Linux Linux8a1fa202f47f39680a4305af744f499a324f8a03Vendor (CNA)
Linux Linux8d788f2ba830d6d32499b198c526d577c590eedfVendor (CNA)
Linux Linuxaa3932eb07392d626486428e2ffddc660658e22aVendor (CNA)
Linux Linuxf3c7b95c9991dab02e616fc251b6c3516e0bd0acVendor (CNA)
Linux Linuxf6fd5d4ff8ca0b24cee1af4130bcb1fa96b61aa0Vendor (CNA)
debian:linux6.1.52-1 · 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 (8 more)

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

All records