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CVE-2022-50868· NVD / CVE Program· CNA Linux

hwrng: amd - Fix PCI device refcount leak

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: 0.24% (FIRST EPSS).
  • Fixed version: Linux Linux 1199f8e02941b326c60ab71a63002b7c80e38212, 2b79a5e560779b35e1164d57ae35c48b43373082, 2e10ecd012ae2b2a374b34f307e9bc1e6096c03d.

Low priority for now. Upgrade to Linux Linux 1199f8e02941b326c60ab71a63002b7c80e38212, 2b79a5e560779b35e1164d57ae35c48b43373082, 2e10ecd012ae2b2a374b34f307e9bc1e6096c03d 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: hwrng: amd - Fix PCI device refcount leak for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() for the normal and error path.

—No exploit Fix available
Published
Dec 30, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 14th 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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  • A fix has been released

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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

    • 2.6.18affected
    • 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 and later · before f1c97f72ffd504f49882774e2ab689d982dc7afcaffected · git
    • 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 and later · before 526c316948819d3ecd2bb20fe5e2580c51a1b760affected · git
    • 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 and later · before e246f5eff26055bdcb61a2cc99c50af72a19680faffected · git
    • 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 and later · before 1199f8e02941b326c60ab71a63002b7c80e38212affected · git
    • 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 and later · before 5998e5c30e839f73e62cb29e0d9617b0d16ccba3affected · git
    • 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 and later · before 2b79a5e560779b35e1164d57ae35c48b43373082affected · git
    • 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 and later · before cb348c7908631dd9f60083a0a1542eab055d3edfaffected · git
    • 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 and later · before 2e10ecd012ae2b2a374b34f307e9bc1e6096c03daffected · git
    • 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 and later · before ecadb5b0111ea19fc7c240bb25d424a94471eb7daffected · git

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.4-16.1.4-1

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-2022-50866Dec 30, 2025 · ASoC: pxa: fix null-pointer dereference in filter()
    0Monitor
  • ← EarlierCVE-2022-50867Dec 30, 2025 · drm/msm/a6xx: Fix kvzalloc vs state_kcalloc usage
    31Monitor
  • Later →CVE-2022-50869Dec 30, 2025 · fs/ntfs3: Fix slab-out-of-bounds in r_page
    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 Linux1199f8e02941b326c60ab71a63002b7c80e38212Vendor (CNA)
Linux Linux2b79a5e560779b35e1164d57ae35c48b43373082Vendor (CNA)
Linux Linux2e10ecd012ae2b2a374b34f307e9bc1e6096c03dVendor (CNA)
Linux Linux526c316948819d3ecd2bb20fe5e2580c51a1b760Vendor (CNA)
Linux Linux5998e5c30e839f73e62cb29e0d9617b0d16ccba3Vendor (CNA)
Linux Linuxcb348c7908631dd9f60083a0a1542eab055d3edfVendor (CNA)
Linux Linuxe246f5eff26055bdcb61a2cc99c50af72a19680fVendor (CNA)
Linux Linuxecadb5b0111ea19fc7c240bb25d424a94471eb7dVendor (CNA)
Linux Linuxf1c97f72ffd504f49882774e2ab689d982dc7afcVendor (CNA)
debian:linux6.1.4-1 · 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.

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 (8 more)

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

All records