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NVD / CVE Program· CNA Linux

CVE-2024-49911: drm/amd/display: Add NULL check for function pointer in dcn20_set_output_transfer_func

MediumCVSS 5.5 · v3.1—No exploit Fix available

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: 0.23% (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 02411e9359297512946705b1cd8cf5e6b0806fa0, 62ed6f0f198da04e884062264df308277628004f, 827380b114f83c30b3e56d1a675980b6d65f7c88; azl3 kernel 6.6.64.2-9 on Azure Linux 3.0 6.6.64.2-9; azl3 kernel 6.6.92.2-1 on Azure Linux 3.0 6.6.64.2-9.

Low priority for now. Upgrade to Linux Linux 02411e9359297512946705b1cd8cf5e6b0806fa0, 62ed6f0f198da04e884062264df308277628004f, 827380b114f83c30b3e56d1a675980b6d65f7c88; azl3 kernel 6.6.64.2-9 on Azure Linux 3.0 6.6.64.2-9; azl3 kernel 6.6.92.2-1 on Azure Linux 3.0 6.6.64.2-9 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: Add NULL check for function pointer in dcn20_set_output_transfer_func This commit adds a null check for the set_output_gamma function pointer in the dcn20_set_output_transfer_func function. Previously, set_output_gamma was being checked for null at line 1030, but then it was being dereferenced without any null check at line 1048. This could potentially lead to a null pointer dereference error if set_output_gamma is null. To fix this, we now ensure that set_output_gamma is not null before dereferencing it. We do this by adding a null check for set_output_gamma before the call to set_output_gamma at line 1048.

Published
Oct 21, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 14th 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.

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-2024-49911

When you'll hear from us

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  • 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

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

    • 4.15affected
    • 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c and later · before e8a24767899c86f4c5f1e4d3b2608942d054900faffected · git
    • 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c and later · before 8c854138b593efbbd8fa46a25f3288c121c1d1a1affected · git
    • 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c and later · before 02411e9359297512946705b1cd8cf5e6b0806fa0affected · git
    • 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c and later · before 827380b114f83c30b3e56d1a675980b6d65f7c88affected · git
    • 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c and later · before 62ed6f0f198da04e884062264df308277628004faffected · git
    • before 4.15not affected · semver
    • 6.1.120 and later · up to and including 6.1.*not affected · semver
    • 6.6.64 and later · up to and including 6.6.*not affected · semver
    • 6.10.14 and later · up to and including 6.10.*not affected · semver

Affected versions

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

  • linux linux kernelbefore 6.10.14
  • linux linux kernel6.11 and later · before 6.11.3

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.123-16.1.123-1
Debian:13linuxbefore 6.11.4-16.11.4-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2024-49909Oct 21, 2024 · drm/amd/display: Add NULL check for function pointer in dcn32_set_output_transfer_func
    22Monitor
  • ← EarlierCVE-2024-49910Oct 21, 2024 · drm/amd/display: Add NULL check for function pointer in dcn401_set_output_transfer_func
    22Monitor
  • Later →CVE-2024-49912Oct 21, 2024 · drm/amd/display: Handle null 'stream_status' in 'planes_changed_for_existing_stream'
    22Monitor

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 Linux02411e9359297512946705b1cd8cf5e6b0806fa0Vendor (CNA)
Linux Linux62ed6f0f198da04e884062264df308277628004fVendor (CNA)
Linux Linux827380b114f83c30b3e56d1a675980b6d65f7c88Vendor (CNA)
Linux Linux8c854138b593efbbd8fa46a25f3288c121c1d1a1Vendor (CNA)
Linux Linuxe8a24767899c86f4c5f1e4d3b2608942d054900fVendor (CNA)
azl3 kernel 6.6.64.2-9 on Azure Linux 3.06.6.64.2-9 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kernel 6.6.92.2-1 on Azure Linux 3.06.6.64.2-9 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.123-1 · 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.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

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-476 · NULL Pointer Dereference

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.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Show all references (5 more)

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

All records