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CVE-2022-48979· NVD / CVE Program· CNA Linux

drm/amd/display: fix array index out of bound error in DCN32 DML

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 3d8a298b2e83b98042e6ec726e934f535b23e6aa, aeffc8fb2174f017a10df114bc312f899904dc68.
  • Severity is disputed: the assigning authority (CNA) scores it 7.8, NVD 5.5.

Low priority for now. Upgrade to Linux Linux 3d8a298b2e83b98042e6ec726e934f535b23e6aa, aeffc8fb2174f017a10df114bc312f899904dc68 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: drm/amd/display: fix array index out of bound error in DCN32 DML [Why&How] LinkCapacitySupport array is indexed with the number of voltage states and not the number of max DPPs. Fix the error by changing the array declaration to use the correct (larger) array size of total number of voltage states.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Oct 21, 2024
Updated
Aug 12, 2026
EPSS
0.2% · 11th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.5
CNA · Linux
7.8
2.3 point gap

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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-2022-48979

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.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernelbefore 6.0.13
  • linux linux kernel6.1

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

    • 5.14affected
    • 74458c081fcfb0423877e630de2746daefdb16e4 and later · before 3d8a298b2e83b98042e6ec726e934f535b23e6aaaffected · git
    • 74458c081fcfb0423877e630de2746daefdb16e4 and later · before aeffc8fb2174f017a10df114bc312f899904dc68affected · git
    • before 5.14not affected · semver
    • 6.0.13 and later · up to and including 6.0.*not affected · semver
    • 6.1 and laternot affected · original_commit_for_fix

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
SUSE:Linux Enterprise Live Patching 15 SP5kernel-livepatch-SLE15-SP5-RT_Update_23before 1-150500.11.3.11-150500.11.3.1
SUSE:Linux Enterprise Live Patching 15 SP5kernel-livepatch-SLE15-SP5-RT_Update_23before 1-150500.11.3.11-150500.11.3.1
SUSE:Linux Enterprise Micro 5.5kernel-rtbefore 5.14.21-150500.13.79.15.14.21-150500.13.79.1
SUSE:Linux Enterprise Micro 5.5kernel-rtbefore 5.14.21-150500.13.79.15.14.21-150500.13.79.1
SUSE:Linux Enterprise Micro 5.5kernel-source-rtbefore 5.14.21-150500.13.79.15.14.21-150500.13.79.1
SUSE:Linux Enterprise Micro 5.5kernel-source-rtbefore 5.14.21-150500.13.79.15.14.21-150500.13.79.1
SUSE:Linux Enterprise Module for Public Cloud 15 SP5kernel-azurebefore 5.14.21-150500.33.75.15.14.21-150500.33.75.1
SUSE:Linux Enterprise Module for Public Cloud 15 SP5kernel-azurebefore 5.14.21-150500.33.75.15.14.21-150500.33.75.1
SUSE:Linux Enterprise Module for Public Cloud 15 SP5kernel-source-azurebefore 5.14.21-150500.33.75.15.14.21-150500.33.75.1
SUSE:Linux Enterprise Module for Public Cloud 15 SP5kernel-source-azurebefore 5.14.21-150500.33.75.15.14.21-150500.33.75.1
SUSE:Linux Enterprise Module for Public Cloud 15 SP5kernel-syms-azurebefore 5.14.21-150500.33.75.15.14.21-150500.33.75.1
SUSE:Linux Enterprise Module for Public Cloud 15 SP5kernel-syms-azurebefore 5.14.21-150500.33.75.15.14.21-150500.33.75.1
SUSE:Real Time Module 15 SP5kernel-rt_debugbefore 5.14.21-150500.13.79.15.14.21-150500.13.79.1
SUSE:Real Time Module 15 SP5kernel-rt_debugbefore 5.14.21-150500.13.79.15.14.21-150500.13.79.1
SUSE:Real Time Module 15 SP5kernel-syms-rtbefore 5.14.21-150500.13.79.15.14.21-150500.13.79.1
SUSE:Real Time Module 15 SP5kernel-syms-rtbefore 5.14.21-150500.13.79.15.14.21-150500.13.79.1

Same product

linux: all records

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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 Linux3d8a298b2e83b98042e6ec726e934f535b23e6aaVendor (CNA)
Linux Linuxaeffc8fb2174f017a10df114bc312f899904dc68Vendor (CNA)
debian:linux6.1.4-1 · Debian:12Package registry (OSV)
opensuse:kernel-rt5.14.21-150500.13.79.1 · openSUSE:Leap Micro 5.5Package registry (OSV)
opensuse:kernel-rt_debug5.14.21-150500.13.79.1 · openSUSE:Leap 15.5Package registry (OSV)
opensuse:kernel-source-rt5.14.21-150500.13.79.1 · openSUSE:Leap 15.5Package registry (OSV)
opensuse:kernel-syms-rt5.14.21-150500.13.79.1 · openSUSE:Leap 15.5Package registry (OSV)
suse:kernel-azure5.14.21-150500.33.75.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP5Package registry (OSV)
suse:kernel-livepatch-SLE15-SP5-RT_Update_231-150500.11.3.1 · SUSE:Linux Enterprise Live Patching 15 SP5Package registry (OSV)
suse:kernel-rt5.14.21-150500.13.79.1 · SUSE:Linux Enterprise Micro 5.5Package registry (OSV)
suse:kernel-rt_debug5.14.21-150500.13.79.1 · SUSE:Real Time Module 15 SP5Package registry (OSV)
suse:kernel-source-azure5.14.21-150500.33.75.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP5Package registry (OSV)
suse:kernel-source-rt5.14.21-150500.13.79.1 · SUSE:Linux Enterprise Micro 5.5Package registry (OSV)
suse:kernel-syms-azure5.14.21-150500.33.75.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP5Package registry (OSV)
suse:kernel-syms-rt5.14.21-150500.13.79.1 · SUSE:Real Time Module 15 SP5Package 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.

  • CVE-2021-47548150 days apartethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()
    39Monitor
  • CVE-2026-23246513 days apartwifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration
    35Monitor
  • CVE-2022-490220 days apartwifi: mac8021: fix possible oob access in ieee80211_get_rate_duration
    31Monitor
  • CVE-2024-498940 days apartdrm/amd/display: Fix index out of bounds in degamma hardware format translation
    31Monitor
  • CVE-2024-498950 days apartdrm/amd/display: Fix index out of bounds in DCN30 degamma hardware format translation
    31Monitor
  • CVE-2024-499300 days apartwifi: ath11k: fix array out-of-bound access in SoC stats
    31Monitor

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

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-129 · Improper Validation of Array Index

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (1 more)

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

All records