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NVD / CVE Program· CNA Linux

CVE-2022-50870: powerpc/rtas: avoid device tree lookups in rtas_os_term()

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 06a07fbb32b3a23eec20a42b1e64474da0a3b33e, 464d10e8d797454e16a173ef1292a446b2adf21c, 698e682c849e356fb47a8be47ca8baa817cf31e0.

Low priority for now. Upgrade to Linux Linux 06a07fbb32b3a23eec20a42b1e64474da0a3b33e, 464d10e8d797454e16a173ef1292a446b2adf21c, 698e682c849e356fb47a8be47ca8baa817cf31e0 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: powerpc/rtas: avoid device tree lookups in rtas_os_term() rtas_os_term() is called during panic. Its behavior depends on a couple of conditions in the /rtas node of the device tree, the traversal of which entails locking and local IRQ state changes. If the kernel panics while devtree_lock is held, rtas_os_term() as currently written could hang. Instead of discovering the relevant characteristics at panic time, cache them in file-static variables at boot. Note the lookup for "ibm,extended-os-term" is converted to of_property_read_bool() since it is a boolean property, not an RTAS function token. [mpe: Incorporate suggested change from Nick]

—No exploit Fix available
Published
Dec 30, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 11th 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

    • 2.6.16affected
    • 088186ded490ced80758200cf8f906ed741df306 and later · before e23822c7381c59d9e42e65771b6e17c71ed30ea7affected · git
    • 088186ded490ced80758200cf8f906ed741df306 and later · before 06a07fbb32b3a23eec20a42b1e64474da0a3b33eaffected · git
    • 088186ded490ced80758200cf8f906ed741df306 and later · before c2fa91abf22a705cf02f886cd99cff41f4ceda60affected · git
    • 088186ded490ced80758200cf8f906ed741df306 and later · before f2167f10fcca68ab9ae3f8d94d2c704c5541ac69affected · git
    • 088186ded490ced80758200cf8f906ed741df306 and later · before d8939315b7342860df143afe0adda6212cdd3193affected · git
    • 088186ded490ced80758200cf8f906ed741df306 and later · before 698e682c849e356fb47a8be47ca8baa817cf31e0affected · git
    • 088186ded490ced80758200cf8f906ed741df306 and later · before 464d10e8d797454e16a173ef1292a446b2adf21caffected · git
    • 088186ded490ced80758200cf8f906ed741df306 and later · before ed2213bfb192ab51f09f12e9b49b5d482c6493f3affected · git
    • before 2.6.16not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.4-16.1.4-1

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-2022-50868Dec 30, 2025 · hwrng: amd - Fix PCI device refcount leak
    0Monitor
  • ← EarlierCVE-2022-50869Dec 30, 2025 · fs/ntfs3: Fix slab-out-of-bounds in r_page
    31Monitor
  • Later →CVE-2022-50872Dec 30, 2025 · ARM: OMAP2+: Fix memory leak in realtime_counter_init()
    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 Linux06a07fbb32b3a23eec20a42b1e64474da0a3b33eVendor (CNA)
Linux Linux464d10e8d797454e16a173ef1292a446b2adf21cVendor (CNA)
Linux Linux698e682c849e356fb47a8be47ca8baa817cf31e0Vendor (CNA)
Linux Linuxc2fa91abf22a705cf02f886cd99cff41f4ceda60Vendor (CNA)
Linux Linuxd8939315b7342860df143afe0adda6212cdd3193Vendor (CNA)
Linux Linuxe23822c7381c59d9e42e65771b6e17c71ed30ea7Vendor (CNA)
Linux Linuxed2213bfb192ab51f09f12e9b49b5d482c6493f3Vendor (CNA)
Linux Linuxf2167f10fcca68ab9ae3f8d94d2c704c5541ac69Vendor (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

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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 (7 more)

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

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