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NVD / CVE Program· CNA Linux

CVE-2026-64462: PCI: altera: Fix resource leaks on probe failure

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 09c43b7b7d29c6fadb27f32cdf7f3bb6598befa9, 0db9aa9ec51be0a0ffdcdfd9af2b7bf3aeb7911a, 6864c789b570e57f932847fa83f6b56917182d73; azl3 kernel 6.6.144.1-1 on Azure Linux 3.0 6.6.145.2-1.

Low priority for now. Upgrade to Linux Linux 09c43b7b7d29c6fadb27f32cdf7f3bb6598befa9, 0db9aa9ec51be0a0ffdcdfd9af2b7bf3aeb7911a, 6864c789b570e57f932847fa83f6b56917182d73; azl3 kernel 6.6.144.1-1 on Azure Linux 3.0 6.6.145.2-1 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: PCI: altera: Fix resource leaks on probe failure The chained IRQ handler is set during probe, but is only removed during the driver remove(). If pci_host_probe() fails, the handler and INTx IRQ domain remain set even though the devm-managed host bridge storage containing struct altera_pcie will be released, leaving the handler with a stale data pointer. Interrupts are also enabled before pci_host_probe() is called. If probe fails after that point, the controller interrupt source should be disabled before the chained handler and INTx domain are removed. So set the chained handler only after the INTx domain has been created. Disable controller interrupts during IRQ teardown, and tear the IRQ setup down if pci_host_probe() fails. [mani: commit log]

—No exploit Fix available
Published
Jul 25, 2026
Updated
Nov 3, 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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  • when exploit code appears or is weaponized
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  • 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

    • 5.9affected
    • c63aed7334c21de8d626ff028ccad98cf5847a0e and later · before af7cf5d56d7d57c4fbfdb7b5b693790f331b07b7affected · git
    • c63aed7334c21de8d626ff028ccad98cf5847a0e and later · before 9cf0cc481e1645ec65e61486ae41c486c59781cbaffected · git
    • c63aed7334c21de8d626ff028ccad98cf5847a0e and later · before 99fc088d6cc6890ae35fa2f29c50ebe027844c20affected · git
    • c63aed7334c21de8d626ff028ccad98cf5847a0e and later · before a25bfa2a6665a1d77324d4a609e7513b87680227affected · git
    • c63aed7334c21de8d626ff028ccad98cf5847a0e and later · before 0db9aa9ec51be0a0ffdcdfd9af2b7bf3aeb7911aaffected · git
    • c63aed7334c21de8d626ff028ccad98cf5847a0e and later · before 09c43b7b7d29c6fadb27f32cdf7f3bb6598befa9affected · git
    • c63aed7334c21de8d626ff028ccad98cf5847a0e and later · before 6864c789b570e57f932847fa83f6b56917182d73affected · git
    • c63aed7334c21de8d626ff028ccad98cf5847a0e and later · before 7a94138caeb27f3c49c1dbd93bf422098925bb28affected · git
    • before 5.9not 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:12linux-6.12before 6.12.100-1~deb12u16.12.100-1~deb12u1
Debian:13linuxbefore 6.12.100-16.12.100-1
Debian:14linuxbefore 7.1.4-17.1.4-1

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-2026-64460Jul 25, 2026 · PCI/IOV: Skip VF Resizable BAR restore on read error
    28Monitor
  • ← EarlierCVE-2026-64461Jul 25, 2026 · PCI: mediatek: Fix IRQ domain leak when port fails to enable
    0Monitor
  • Later →CVE-2026-64463Jul 25, 2026 · usb: typec: tcpci_rt1711h: unregister TCPCI port with devres
    31Monitor

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 Linux09c43b7b7d29c6fadb27f32cdf7f3bb6598befa9Vendor (CNA)
Linux Linux0db9aa9ec51be0a0ffdcdfd9af2b7bf3aeb7911aVendor (CNA)
Linux Linux6864c789b570e57f932847fa83f6b56917182d73Vendor (CNA)
Linux Linux7a94138caeb27f3c49c1dbd93bf422098925bb28Vendor (CNA)
Linux Linux99fc088d6cc6890ae35fa2f29c50ebe027844c20Vendor (CNA)
Linux Linux9cf0cc481e1645ec65e61486ae41c486c59781cbVendor (CNA)
Linux Linuxa25bfa2a6665a1d77324d4a609e7513b87680227Vendor (CNA)
Linux Linuxaf7cf5d56d7d57c4fbfdb7b5b693790f331b07b7Vendor (CNA)
azl3 kernel 6.6.144.1-1 on Azure Linux 3.06.6.145.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.180-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.100-1~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).

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