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NVD / CVE Program· CNA Linux

CVE-2026-93822: PCI: iproc: 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 1618e374ba4c7117c04662422ef985e9d64e2466, 4e1d34d824050a4e700ca442f815a95d9f214b83, a6a64e150f12ad5391e0a0d60f6a3d119b06ce50; 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 1618e374ba4c7117c04662422ef985e9d64e2466, 4e1d34d824050a4e700ca442f815a95d9f214b83, a6a64e150f12ad5391e0a0d60f6a3d119b06ce50; 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: iproc: 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-2026-93822

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

    • 4.1affected
    • 1fb37a8178da007cad75f48e2355b9dcb0711e06 and later · before e7d9d7be2c1f8d434032983bc86a05805178c9c9affected · git
    • 1fb37a8178da007cad75f48e2355b9dcb0711e06 and later · before 1618e374ba4c7117c04662422ef985e9d64e2466affected · git
    • 1fb37a8178da007cad75f48e2355b9dcb0711e06 and later · before 4e1d34d824050a4e700ca442f815a95d9f214b83affected · git
    • 1fb37a8178da007cad75f48e2355b9dcb0711e06 and later · before aaf4153caed9f1760b9f266612b0599bfd97150caffected · git
    • 1fb37a8178da007cad75f48e2355b9dcb0711e06 and later · before bd2bf1e0d973c93fc1637b90cbb9a5a5f6884bd3affected · git
    • 1fb37a8178da007cad75f48e2355b9dcb0711e06 and later · before ee06aafc2d760a4ee023e0b2e95ce1ec71bddc6caffected · git
    • 1fb37a8178da007cad75f48e2355b9dcb0711e06 and later · before a6a64e150f12ad5391e0a0d60f6a3d119b06ce50affected · git
    • before 4.1not 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-2026-93820Sep 24, 2026 · PCI: rockchip: Protect root bus removal with rescan lock
    0Monitor
  • ← EarlierCVE-2026-93821Sep 24, 2026 · PCI: altera: Protect root bus removal with rescan lock
    0Monitor
  • Later →CVE-2026-93823Sep 24, 2026 · drm/amdkfd: Let driver decide buffer size at AMDKFD_IOC_GET_DMABUF_INFO ioctl
    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 Linux1618e374ba4c7117c04662422ef985e9d64e2466Vendor (CNA)
Linux Linux4e1d34d824050a4e700ca442f815a95d9f214b83Vendor (CNA)
Linux Linuxa6a64e150f12ad5391e0a0d60f6a3d119b06ce50Vendor (CNA)
Linux Linuxaaf4153caed9f1760b9f266612b0599bfd97150cVendor (CNA)
Linux Linuxbd2bf1e0d973c93fc1637b90cbb9a5a5f6884bd3Vendor (CNA)
Linux Linuxe7d9d7be2c1f8d434032983bc86a05805178c9c9Vendor (CNA)
Linux Linuxee06aafc2d760a4ee023e0b2e95ce1ec71bddc6cVendor (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