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NVD / CVE Program· CNA Linux

CVE-2026-93820: PCI: rockchip: Protect root bus removal with rescan lock

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: 0.17% (FIRST EPSS).
  • Fixed version: Linux Linux 025308e7c9cd10112b73558c9f63f8f7285fa726, 0bd9611587bb494c33566d825fe34b2705e4b167, 5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1.

Low priority for now. Upgrade to Linux Linux 025308e7c9cd10112b73558c9f63f8f7285fa726, 0bd9611587bb494c33566d825fe34b2705e4b167, 5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1 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: PCI: rockchip: Protect root bus removal with rescan lock Hold the pci_rescan_remove_lock lock while stopping and removing a root bus to avoid racing with concurrent rescan or hotplug operations triggered via sysfs. Such races may lead to use-after-free issues or system crashes. [bhelgaas: commit log]

—No exploit Fix available
Published
Sep 24, 2026
Updated
Oct 3, 2026
EPSS
0.1% · 6th 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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-93820

When you'll hear from us

  • when it enters CISA KEV
  • 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

    • 4.12affected
    • 073d3dbe9a7c38888d8dafe09df421b174a6cffa and later · before 025308e7c9cd10112b73558c9f63f8f7285fa726affected · git
    • 073d3dbe9a7c38888d8dafe09df421b174a6cffa and later · before ac47d42901859edb504a2890a3a5709c86dbc0c3affected · git
    • 073d3dbe9a7c38888d8dafe09df421b174a6cffa and later · before eaeb9bed3641741aceb0add84a97023bed61e748affected · git
    • 073d3dbe9a7c38888d8dafe09df421b174a6cffa and later · before 5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652affected · git
    • 073d3dbe9a7c38888d8dafe09df421b174a6cffa and later · before ebca7e5947720e9d4bd918af3e17720270c50744affected · git
    • 073d3dbe9a7c38888d8dafe09df421b174a6cffa and later · before 9b19201f57d87c4d0777621275dbc59bff41b7f2affected · git
    • 073d3dbe9a7c38888d8dafe09df421b174a6cffa and later · before 0bd9611587bb494c33566d825fe34b2705e4b167affected · git
    • before 4.12not affected · semver
    • 5.10.271 and later · up to and including 5.10.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.6-17.2.6-1

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-2026-93817Sep 24, 2026 · perf: Fix addr_filter_ranges lifetime
    31Monitor
  • ← EarlierCVE-2026-93819Sep 24, 2026 · PCI: mediatek: Protect root bus removal with rescan lock
    0Monitor
  • Later →CVE-2026-93821Sep 24, 2026 · PCI: altera: Protect root bus removal with rescan lock
    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 Linux025308e7c9cd10112b73558c9f63f8f7285fa726Vendor (CNA)
Linux Linux0bd9611587bb494c33566d825fe34b2705e4b167Vendor (CNA)
Linux Linux5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652Vendor (CNA)
Linux Linux9b19201f57d87c4d0777621275dbc59bff41b7f2Vendor (CNA)
Linux Linuxac47d42901859edb504a2890a3a5709c86dbc0c3Vendor (CNA)
Linux Linuxeaeb9bed3641741aceb0add84a97023bed61e748Vendor (CNA)
Linux Linuxebca7e5947720e9d4bd918af3e17720270c50744Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.158.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~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✗ → ✓

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References

Show all references (6 more)

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

All records